Fix and optimize tilt test case issues

Tilt tests started to fail after the latest changes. Had to make
some fixes and optimizations so that the test code resets the
tilt controls correctly and aligns with relay_chn's timing requirements.

Fixes #1115

.gitignore

@@ -56,6 +56,11 @@ tools/test_apps/**/build_*_*/
 tools/test_apps/**/sdkconfig
 tools/test_apps/**/sdkconfig.old
 
+# autogenerated config files
+sdkconfig
+test_apps/sdkconfig
+test_apps/sdkconfig.old
+
 TEST_LOGS/
 build_summary_*.xml
 
@@ -69,6 +74,7 @@ test_multi_heap_host
 
 # VS Code Settings
 # .vscode/
+settings.json
 
 # VIM files
 *.swp
@@ -108,4 +114,4 @@ XUNIT_RESULT*.xml
 .clangd
 
 # Vale
-.vale/styles/*
+.vale/styles/*

.vscode/settings.json

@@ -1,3 +0,0 @@
-{
-    "C_Cpp.intelliSenseEngine": "default"
-}

CMakeLists.txt

@@ -3,7 +3,8 @@ set(priv_include_dirs "private_include")
 
 set(srcs "src/relay_chn_core.c"
          "src/relay_chn_output.c"
-         "src/relay_chn_run_info.c")
+         "src/relay_chn_run_info.c"
+         "src/relay_chn_notify.c")
 
 if(CONFIG_RELAY_CHN_ENABLE_TILTING)
     list(APPEND srcs "src/relay_chn_tilt.c")
@@ -15,7 +16,7 @@ else()
     list(APPEND srcs "src/relay_chn_ctl_single.c")
 endif()
 
-if(CONFIG_RELAY_CHN_NVS)
+if(CONFIG_RELAY_CHN_ENABLE_NVS)
     list(APPEND srcs "src/relay_chn_nvs.c")
 endif()
 

Kconfig

@@ -9,14 +9,14 @@ menu "Relay Channel Driver Configuration"
             starting the output. This is useful for the motors or some other
             mechanical actuators to allow them to stop and settle before
             changing the direction.
-    
+
     config RELAY_CHN_COUNT
         int "Number of relay channels"
         range 1 8
         default 1
         help
             Number of relay channels between 1 and 8.
-    
+
     config RELAY_CHN_ENABLE_RUN_LIMIT
         bool "Enable run limit for channels"
         default n
@@ -32,7 +32,7 @@ menu "Relay Channel Driver Configuration"
             at a time. Tilting is specifically designed for controlling some
             types of curtains that need to be adjusted to let enter specific
             amount of day light.
-    
+
     config RELAY_CHN_ENABLE_NVS
         bool "Enable persistent NVS storage for relay channel"
         default n
@@ -58,7 +58,7 @@ menu "Relay Channel NVS Storage Configuration"
             If enabled, a custom NVS partition will be used for storing
             relay channel configuration. If disabled, the default NVS
             partition will be used.
-    
+
     config RELAY_CHN_NVS_CUSTOM_PARTITION_NAME
         string "Custom NVS partition name"
         depends on RELAY_CHN_NVS_CUSTOM_PARTITION
@@ -92,5 +92,5 @@ menu "Relay Channel Run Limit Configuration"
         default 60
         help
             Default run limit in seconds for channels.
-    
+
 endmenu

README.md

@@ -21,8 +21,8 @@ Each relay channel consists of 2 output relays controlled by 2 GPIO pins. The co
 
 The run limit feature provides an additional layer of protection by automatically stopping channels after a configurable time period. This is particularly useful for motor-driven applications where continuous operation beyond a certain duration could cause damage or safety issues. Each channel can have its own run limit setting, and when enabled, the component will automatically stop the channel once it has been running for the specified duration.
 
-It also provides an optional tilting interface per channel base. Tilting makes a channel move with a specific pattern moving with small steps at a time. Tilting is specifically designed for controlling some types of curtains that need to be adjusted to let enter specific amount of day light.  
-Since it operates on relays, the switching frequency is limited to 10Hz which complies with the most of the general purpose relays' requirements. The minimum frequency is 2Hz and the duty cycle is about 10% in all ranges.  
+It also provides an optional tilting interface per channel base. Tilting makes a channel move with a specific pattern moving with small steps at a time. Tilting is specifically designed for controlling some types of curtains that need to be adjusted to let enter specific amount of day light.
+Since it operates on relays, the switching frequency is limited to 10Hz which complies with the most of the general purpose relays' requirements. The minimum frequency is 2Hz and the duty cycle is about 10% in all ranges.
 
 Another optional feature is NVS storage, which saves the configuration permanently across reboots of the device. These configurations are:
 
@@ -31,6 +31,16 @@ Another optional feature is NVS storage, which saves the configuration permanent
 - Tilt sensitivity
 - Last tilt position
 
+### NVS Operation Details
+When NVS storage is enabled (CONFIG_RELAY_CHN_ENABLE_NVS=y), the component creates a dedicated background task to manage all NVS write operations. This design has important implications for how you use the NVS-related functions:
+- **Asynchronous Writes:** All `set` operations (e.g., `relay_chn_flip_direction()`, `relay_chn_set_run_limit()`) are asynchronous. They add the write request to a queue and return immediately, preventing the calling task from being blocked.
+- **Synchronous Reads:** All get operations (e.g., `relay_chn_get_direction()`) are synchronous. They read the value directly from the NVS storage and will block the calling task until the read is complete.
+- **Batched Commits:** To optimize performance and minimize flash wear, the NVS task uses a batching mechanism for writes. It collects multiple write requests and commits them to the NVS flash in a single operation after a short period of inactivity (typically 200ms).
+
+> [!IMPORTANT]
+> Due to the asynchronous and batched nature of write operations, a call to a get function may not immediately reflect a value that was just written by a set function. Your application should account for this small delay.
+
+
 ## Configuration
 
 Configure the component through menuconfig under "Relay Channel Driver Configuration":
@@ -120,7 +130,7 @@ dependencies:
   # Add as a custom component from git repository
   relay_chn:
     git: https://git.kozmotronik.com.tr/KozmotronikTech/relay_chn.git
-    version: '>=0.5.0'
+    version: '>=1.0.0'
 ```
 
 ## Usage
@@ -135,7 +145,7 @@ Depending on the mode, the component will be built selectively, so the signature
 ```c
 relay_chn_run_forward(); // No channel ID parameter for single channel mode
 // or
-relay_chn_run_forward(2); // Channel ID parameters will be needed in multi channel mode 
+relay_chn_run_forward(2); // Channel ID parameters will be needed in multi channel mode
 ```
 
 See the examples for further reference
@@ -187,9 +197,9 @@ relay_chn_run_reverse(1);
 // Run all channels reverse
 relay_chn_run_reverse_all();
 
-// Stop channel #1 
+// Stop channel #1
 relay_chn_stop(1);
-// Stop all channels 
+// Stop all channels
 relay_chn_stop_all();
 
 // Flip direction of channel #0
@@ -200,6 +210,9 @@ relay_chn_flip_direction_all();
 
 ### 3. Monitor channel state
 
+> [!WARNING]
+> Listener callbacks are executed from the context of the notification dispatcher task. To ensure system responsiveness and prevent event loss, callbacks must be lightweight and non-blocking. Avoid any long-running operations or functions that may block, such as `vTaskDelay()` or semaphore takes with long timeouts, inside the callback.
+
 For single mode:
 
 ```c

examples/relay_chn_multi/.gitignore

@@ -0,0 +1,6 @@
+build/
+sdkconfig
+sdkconfig.old
+
+# Exclude auto-populated settings file
+settings.json

examples/relay_chn_multi/.vscode/c_cpp_properties.json

@@ -0,0 +1,23 @@
+{
+  "configurations": [
+    {
+      "name": "ESP-IDF",
+      "compilerPath": "${config:idf.toolsPath}/tools/riscv32-esp-elf/esp-14.2.0_20241119/riscv32-esp-elf/bin/riscv32-esp-elf-gcc",
+      "compileCommands": "/disk/Projeler/ESP-Components/relay_chn/examples/relay_chn_single/build/compile_commands.json",
+      "includePath": [
+        "${config:idf.espIdfPath}/components/**",
+        "${config:idf.espIdfPathWin}/components/**",
+        "${workspaceFolder}/**"
+      ],
+      "browse": {
+        "path": [
+          "${config:idf.espIdfPath}/components",
+          "${config:idf.espIdfPathWin}/components",
+          "${workspaceFolder}"
+        ],
+        "limitSymbolsToIncludedHeaders": true
+      }
+    }
+  ],
+  "version": 4
+}

examples/relay_chn_multi/.vscode/launch.json

@@ -0,0 +1,15 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "gdbtarget",
+      "request": "attach",
+      "name": "Eclipse CDT GDB Adapter"
+    },
+    {
+      "type": "espidf",
+      "name": "Launch",
+      "request": "launch"
+    }
+  ]
+}

examples/relay_chn_multi/CMakeLists.txt

@@ -0,0 +1,10 @@
+# For more information about build system see
+# https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/build-system.html
+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.5)
+
+set(COMPONENTS main)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(relay_chn_single)

examples/relay_chn_multi/README.md

@@ -0,0 +1,176 @@
+# Relay Channel Multi Example
+
+## Introduction
+
+This example demonstrates how to use the relay channel component to control a 3-channel setup with button inputs and LED status indication. It showcases:
+
+- Basic relay channel operations (forward/reverse running, stopping)
+- Secondary operations (tilting, direction flipping)
+- State change event handling with a listener
+- Relay channel run limit
+- Button event handling using esp-iot-solution's button component
+- Visual feedback using esp-iot-solution's LED indicator component
+
+## How to Use Example
+
+This example has been tested on an `ESP32-C3-DevKitM-1U` board. However, it can be adapted to any ESP32-based board with at least six available GPIO pins by adjusting the configuration options.
+
+### Hardware Required
+
+* An ESP32-based development board
+* 2 relays connected to GPIO pins (default: GPIO4, GPIO5)
+* 3 buttons connected to GPIO pins:
+  - UP button (default: GPIO0)
+  - DOWN button (default: GPIO1) 
+  - STOP button (default: GPIO2)
+  - SELECT button (default: GPIO3)
+* LED indicators for status indication of each channel (default: GPIO4, GPIO10 and GPIO9 respectively)
+
+#### Hardware Schematic
+
+Relay blocks are ommitted for simplicity. You can refer to schematic of the [Single-channel example](/examples/relay_chn_single/README.md) for a fully implemented relay block.
+
+> [!NOTE]
+> A single relay channel consists of two relay block and two GPIO pins.
+
+![Hardware Schematic](example_schematic.png)
+
+### Configuration
+
+The example can be configured through `menuconfig` under "Relay Channel Multi Example Configuration":
+
+1. Button active level (`EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL`)
+   - Select between active LOW or HIGH logic level for buttons
+   
+2. GPIO assignments:
+   - UP button pin (`EXAMPLE_RLCHN_BTN_UP_IO_NUM`, default: 0)
+   - DOWN button pin (`EXAMPLE_RLCHN_BTN_DOWN_IO_NUM`, default: 1)
+   - STOP button pin (`EXAMPLE_RLCHN_BTN_STOP_IO_NUM`, default: 2)
+   - SELECT button pin (`EXAMPLE_RLCHN_BTN_SELECT_IO_NUM`, default: 3)
+   - LED indicator pin (`EXAMPLE_RLCHN_LED_INDICATOR1_IO_NUM`, default: 4)
+   - LED indicator pin (`EXAMPLE_RLCHN_LED_INDICATOR2_IO_NUM`, default: 10)
+   - LED indicator pin (`EXAMPLE_RLCHN_LED_INDICATOR3_IO_NUM`, default: 9)
+
+3. Long press timing:
+   - `EXAMPLE_RLCHN_BTN_LONG_PRESS_TIME_MS`: Duration for long press actions (1500-3000ms, default: 2000ms)
+
+### Button Operations
+
+The example uses esp-iot-solution's `button` component to handle the following operations:
+
+- **UP button**:
+  * Short press: Start forward movement
+  * Long press: Start forward tilt (stops on release)
+
+- **DOWN button**: 
+  * Short press: Start reverse movement
+  * Long press: Start reverse tilt (stops on release)
+
+- **STOP button**:
+  * Short press: Stop movement
+  * Long press: Flip movement direction
+
+- **SELECT button**:
+  * Short press: Selects a channel to operate
+  * Long press: Selects all channels to operate in batch
+
+### LED Indicator States
+
+The example uses esp-iot-solution's `led_indicator` component to show different states:
+
+- **Running**: LED blinks at 300ms on, 100ms off
+- **Tilting**: Fast blink at 100ms on, 50ms off
+- **Operation Success**: Two quick blinks
+- **Operation Fail**: One long blink
+
+### Dependencies
+
+This example requires:
+- ESP-IDF v4.1 or later
+- esp-iot-solution components:
+  * button v4.1.1 or later
+  * led_indicator v1.1.1 or later
+- relay_chn component
+
+## Example Output
+
+When the application boots, it will wait for a button event. Then ta state listener will print state changes.
+
+```log
+I (269) main_task: Calling app_main()
+I (269) RELAY_CHN_MULTI_EXAMPLE: Initializing relay channel
+I (279) gpio: GPIO[18]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (279) gpio: GPIO[19]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (289) gpio: GPIO[5]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (299) gpio: GPIO[6]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (309) gpio: GPIO[7]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (319) gpio: GPIO[8]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (329) RELAY_CHN_MULTI_EXAMPLE: Initializing buttons
+I (329) RELAY_CHN_MULTI_EXAMPLE: Initializing buttons with active level: 0
+I (339) gpio: GPIO[0]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (339) button: IoT Button Version: 4.1.3
+I (349) gpio: GPIO[1]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (359) gpio: GPIO[2]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (359) gpio: GPIO[3]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (369) RELAY_CHN_MULTI_EXAMPLE: Setting up button callbacks. Configured long press time: 2000 ms
+I (379) RELAY_CHN_MULTI_EXAMPLE: Initializing LED indicator
+I (389) gpio: GPIO[4]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (389) led_indicator: LED Indicator Version: 1.1.1
+I (399) gpio: GPIO[4]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
+I (409) led_indicator: Indicator create successfully. type:GPIO mode, hardware_data:0x3fc96498, blink_lists:custom
+I (419) gpio: GPIO[10]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (429) led_indicator: LED Indicator Version: 1.1.1
+I (429) gpio: GPIO[10]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
+I (439) led_indicator: Indicator create successfully. type:GPIO mode, hardware_data:0x3fc965a4, blink_lists:custom
+I (449) gpio: GPIO[9]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (459) led_indicator: LED Indicator Version: 1.1.1
+I (459) gpio: GPIO[9]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
+I (469) led_indicator: Indicator create successfully. type:GPIO mode, hardware_data:0x3fc966b0, blink_lists:custom
+I (479) RELAY_CHN_MULTI_EXAMPLE: Relay Channel Multi Example is ready to operate
+I (489) main_task: Returned from app_main()
+I (3759) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from IDLE to FORWARD
+I (6639) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from FORWARD to STOPPED
+I (7439) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from STOPPED to IDLE
+I (7439) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from IDLE to TILT_FORWARD
+I (8119) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from TILT_FORWARD to IDLE
+I (13579) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from IDLE to TILT_REVERSE
+I (14419) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from TILT_REVERSE to IDLE
+I (20319) RELAY_CHN_MULTI_EXAMPLE: Selected channel: 1
+I (21479) RELAY_CHN_MULTI_EXAMPLE: Selected channel: 2
+I (22229) RELAY_CHN_MULTI_EXAMPLE: Selected channel: 0
+I (23169) RELAY_CHN_MULTI_EXAMPLE: Selected channel: 1
+I (29039) RELAY_CHN_MULTI_EXAMPLE: Selected all channels
+I (35419) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from IDLE to FORWARD
+I (35419) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from IDLE to FORWARD
+I (35419) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from IDLE to FORWARD
+I (39349) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from FORWARD to STOPPED
+I (39349) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from FORWARD to STOPPED
+I (39359) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from FORWARD to STOPPED
+I (40149) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from STOPPED to IDLE
+I (40149) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from IDLE to TILT_FORWARD
+I (40159) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from STOPPED to IDLE
+I (40169) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from IDLE to TILT_FORWARD
+I (40179) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from STOPPED to IDLE
+I (40189) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from IDLE to TILT_FORWARD
+I (41699) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from TILT_FORWARD to IDLE
+I (41699) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from TILT_FORWARD to IDLE
+I (41709) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from TILT_FORWARD to IDLE
+I (64129) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from IDLE to TILT_REVERSE
+I (64129) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from IDLE to TILT_REVERSE
+I (64139) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from IDLE to TILT_REVERSE
+I (68929) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from TILT_REVERSE to IDLE
+I (68929) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from TILT_REVERSE to IDLE
+I (68939) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from TILT_REVERSE to IDLE
+I (280109) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from IDLE to FORWARD
+I (280109) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from IDLE to FORWARD
+I (280109) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from IDLE to FORWARD
+I (283219) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from FORWARD to STOPPED
+I (283219) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from STOPPED to REVERSE_PENDING
+I (283229) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from FORWARD to STOPPED
+I (283239) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from STOPPED to REVERSE_PENDING
+I (283249) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from FORWARD to STOPPED
+I (283259) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from STOPPED to REVERSE_PENDING
+I (284019) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #0, from REVERSE_PENDING to REVERSE
+I (284019) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #1, from REVERSE_PENDING to REVERSE
+I (284029) RELAY_CHN_MULTI_EXAMPLE: example_event_listener: State change for #2, from REVERSE_PENDING to REVERSE
+```

examples/relay_chn_multi/main/CMakeLists.txt

@@ -0,0 +1,2 @@
+idf_component_register(SRCS "relay_chn_multi_main.c"
+                       PRIV_REQUIRES button led_indicator relay_chn)

examples/relay_chn_multi/main/Kconfig.projbuild

@@ -0,0 +1,52 @@
+menu "Relay Channel Multi Example Configuration"
+    
+    choice EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL
+        prompt "Choose an active level for buttons"
+        default EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL_LOW
+        help
+            Specify the active level for buttons.
+        
+        config EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL_LOW
+            bool "Active level LOW"
+
+        config EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL_HIGH
+            bool "Active level HIGH"
+    endchoice
+    
+    config EXAMPLE_RLCHN_BTN_UP_IO_NUM
+        int "GPIO number for UP button"
+        default 0
+    
+    config EXAMPLE_RLCHN_BTN_DOWN_IO_NUM
+        int "GPIO number for DOWN button"
+        default 1
+    
+    config EXAMPLE_RLCHN_BTN_STOP_IO_NUM
+        int "GPIO number for STOP button"
+        default 2
+    
+    config EXAMPLE_RLCHN_BTN_SELECT_IO_NUM
+        int "GPIO number for STOP button"
+        default 3
+    
+    config EXAMPLE_RLCHN_LED_INDICATOR1_IO_NUM
+        int "GPIO number for LED indicator output for channel 1"
+        default 4
+    
+    config EXAMPLE_RLCHN_LED_INDICATOR2_IO_NUM
+        int "GPIO number for LED indicator output for channel 2"
+        default 10
+    
+    config EXAMPLE_RLCHN_LED_INDICATOR3_IO_NUM
+        int "GPIO number for LED indicator output for channel 3"
+        default 9
+    
+    config EXAMPLE_RLCHN_BTN_LONG_PRESS_TIME_MS
+        int "Long press time in ms to start secondary actions"
+        range 1500 3000
+        default 2000
+        help
+            Long press time in milliseconds is required to start secondary actions 
+            like tilting and flipping.
+
+endmenu

examples/relay_chn_multi/main/idf_component.yml

@@ -0,0 +1,8 @@
+dependencies:
+  idf:
+    version: '>=4.1.0'
+  espressif/button: ^4.1.1
+  espressif/led_indicator: ^1.1.1
+  relay_chn:
+    version: '*'
+    override_path: ../../../

examples/relay_chn_multi/main/relay_chn_multi_main.c

@@ -0,0 +1,427 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <stdio.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_err.h"
+#include "esp_log.h"
+#include "esp_check.h"
+#include "driver/gpio.h"
+#include "nvs.h"
+#include "nvs_flash.h"
+#include "esp_timer.h"
+#include "button_gpio.h"
+#include "iot_button.h"
+#include "led_indicator.h"
+#include "relay_chn.h"
+
+static const char *TAG = "RELAY_CHN_MULTI_EXAMPLE";
+
+#define EXAMPLE_CHN_INDICATOR_ON_TIME_MS 3000
+#define EXAMPLE_ALL_CHANNELS CONFIG_RELAY_CHN_COUNT
+
+
+/**
+ * @brief LED indicator modes for different states.
+ */
+typedef enum {
+    INDICATOR_MODE_SELECT,      /*!< Channel select indication */
+    INDICATOR_MODE_OK,          /*!< OK/Success indication */
+    INDICATOR_MODE_FAIL,        /*!< Fail/Error indication */
+    INDICATOR_MODE_TILTING,     /*!< Tilting operation in progress */
+    INDICATOR_MODE_RUNNING,     /*!< Full run operation in progress */
+    INDICATOR_MODE_MAX          /*!< Maximum number of indicator modes */
+} indicator_mode_t;
+
+/** @brief Blink pattern for channel select indication. */
+static const blink_step_t indc_mode_select[] = {
+    {LED_BLINK_HOLD, LED_STATE_ON, EXAMPLE_CHN_INDICATOR_ON_TIME_MS},    // step1: turn on LED 3000 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 10},     // step2: turn off LED 500 ms
+    {LED_BLINK_STOP, 0, 0},                  // step4: stop blink (off)
+};
+
+/** @brief Blink pattern for OK/Success indication. */
+static const blink_step_t indc_mode_ok[] = {
+    {LED_BLINK_HOLD, LED_STATE_ON, 100},    // step1: turn on LED 100 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 50},    // step2: turn off LED 50 ms
+    {LED_BLINK_HOLD, LED_STATE_ON, 100},    // step3: turn on LED 100 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 50},    // step4: turn off LED 50 ms
+    {LED_BLINK_STOP, 0, 0},                 // step5: stop blink (off)
+};
+
+/** @brief Blink pattern for Fail/Error indication. */
+static const blink_step_t indc_mode_fail[] = {
+    {LED_BLINK_HOLD, LED_STATE_ON, 1000},    // step1: turn on LED 1000 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 500},    // step2: turn off LED 500 ms
+    {LED_BLINK_STOP, 0, 0},                  // step4: stop blink (off)
+};
+
+/** @brief Blink pattern for full run operation. */
+static const blink_step_t indc_mode_running[] = {
+    {LED_BLINK_HOLD, LED_STATE_ON, 300},    // step1: turn on LED 300 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 100},   // step2: turn off LED 100 ms
+    {LED_BLINK_LOOP, 0, 0},                 // step3: loop from step1
+};
+
+/** @brief Blink pattern for tilting operation. */
+static const blink_step_t indc_mode_tilting[] = {
+    {LED_BLINK_HOLD, LED_STATE_ON, 100},    // step1: turn on LED 100 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 50},    // step2: turn off LED 50 ms
+    {LED_BLINK_LOOP, 0, 0},                 // step3: loop from step1
+};
+
+/** @brief Array of LED indicator blink patterns. */
+blink_step_t const *led_indicator_modes[] = {
+    [INDICATOR_MODE_SELECT]     = indc_mode_select,
+    [INDICATOR_MODE_OK]         = indc_mode_ok,
+    [INDICATOR_MODE_FAIL]       = indc_mode_fail,
+    [INDICATOR_MODE_RUNNING]    = indc_mode_running,
+    [INDICATOR_MODE_TILTING]    = indc_mode_tilting,
+    [INDICATOR_MODE_MAX]        = NULL,
+};
+
+/** @brief Handle for the LED indicator. */
+static led_indicator_handle_t indicators[CONFIG_RELAY_CHN_COUNT];
+static uint8_t selected_channel = 0; /*!< Currently selected channel */
+static uint8_t selected_channel_backup = 0; /*!< Backup for last selected channel */
+static int64_t last_indc_update_us = 0; /*!< Timestamp of the last channel selection */
+
+
+/**
+ * @brief Initializes the buttons for user interaction.
+ *
+ * This function configures and creates GPIO buttons for UP, DOWN, and STOP
+ * operations. It also registers callbacks for single-click and long-press
+ * events to control the relay channel.
+ *
+ * @return esp_err_t
+ *      - ESP_OK: Success
+ *      - Others: Fail
+ */
+static esp_err_t init_buttons(void);
+
+/**
+ * @brief Initializes the LED indicator.
+ *
+ * This function configures and creates the LED indicator used to provide
+ * visual feedback on the relay channel's status.
+ *
+ * @return esp_err_t
+ *      - ESP_OK: Success
+ *      - ESP_FAIL: Fail
+ */
+static esp_err_t init_led_indicators(void);
+
+/**
+ * @brief Starts all indicators with the specified mode.
+ * 
+ * @param mode One of the indicator modes defined with indicator_mode_t.
+ */
+static void start_all_indicators_for_mode(indicator_mode_t mode);
+
+/**
+ * @brief Stops all indicators with the specified mode.
+ * 
+ * @param mode One of the indicator modes defined with indicator_mode_t.
+ */
+static void stop_all_indicators_for_mode(indicator_mode_t mode);
+
+/**
+ * @brief Event listener for relay channel state changes to log the state transition.
+ */
+static void example_event_listener(uint8_t ch, relay_chn_state_t old_state, relay_chn_state_t new_state);
+
+void app_main(void)
+{
+    const uint8_t gpio_map[] = { 18, 19, 5, 6, 7, 8 };
+    const uint8_t gpio_count = sizeof(gpio_map) / sizeof(gpio_map[0]);
+
+    ESP_LOGI(TAG, "Initializing relay channel");
+    ESP_ERROR_CHECK(relay_chn_create(gpio_map, gpio_count));
+    ESP_ERROR_CHECK(relay_chn_register_listener(example_event_listener));
+
+    ESP_LOGI(TAG, "Initializing buttons");
+    ESP_ERROR_CHECK(init_buttons());
+    ESP_LOGI(TAG, "Initializing LED indicator");
+    ESP_ERROR_CHECK(init_led_indicators());
+
+    ESP_LOGI(TAG, "Relay Channel Multi Example is ready to operate");
+
+    // Indicate init was successful
+    start_all_indicators_for_mode(INDICATOR_MODE_OK);
+}
+
+static void on_click_up(void *arg, void *data)
+{
+    if (selected_channel == EXAMPLE_ALL_CHANNELS) {
+        relay_chn_run_forward_all();
+    } else {
+        relay_chn_run_forward(selected_channel);
+    }
+}
+
+static void on_click_down(void *arg, void *data)
+{
+    if (selected_channel == EXAMPLE_ALL_CHANNELS) {
+        relay_chn_run_reverse_all();
+    } else {
+        relay_chn_run_reverse(selected_channel);
+    }
+}
+
+static void on_click_stop(void *arg, void *data)
+{
+    if (selected_channel == EXAMPLE_ALL_CHANNELS) {
+        relay_chn_stop_all();
+    } else {
+        relay_chn_stop(selected_channel);
+    }
+}
+
+static void on_click_flip(void *arg, void *data)
+{
+    if (selected_channel == EXAMPLE_ALL_CHANNELS) {
+        relay_chn_flip_direction_all();
+        start_all_indicators_for_mode(INDICATOR_MODE_OK);
+    } else {
+        relay_chn_flip_direction(selected_channel);
+        led_indicator_start(indicators[selected_channel], INDICATOR_MODE_OK);
+    }
+}
+
+static void on_click_tilt_up(void *arg, void *data)
+{
+    if (selected_channel == EXAMPLE_ALL_CHANNELS) {
+        relay_chn_tilt_forward_all();
+    } else {
+        relay_chn_tilt_forward(selected_channel);
+    }
+}
+
+static void on_click_tilt_down(void *arg, void *data)
+{
+    if (selected_channel == EXAMPLE_ALL_CHANNELS) {
+        relay_chn_tilt_reverse_all();
+    } else {
+        relay_chn_tilt_reverse(selected_channel);
+    }
+}
+
+static void on_release_tilt(void *arg, void *data)
+{
+    if (selected_channel == EXAMPLE_ALL_CHANNELS) {
+        relay_chn_tilt_stop_all();
+    } else {
+        relay_chn_tilt_stop(selected_channel);
+    }
+}
+
+static void on_click_select(void *arg, void *data)
+{
+    int64_t now_us = esp_timer_get_time();
+    uint32_t delta_ms = (now_us - last_indc_update_us) / 1000;
+    if (delta_ms >= EXAMPLE_CHN_INDICATOR_ON_TIME_MS) {
+        // Channel indicator was off, turn it on first
+        if (selected_channel == EXAMPLE_ALL_CHANNELS) {
+            start_all_indicators_for_mode(INDICATOR_MODE_SELECT);
+        } else {
+            led_indicator_start(indicators[selected_channel], INDICATOR_MODE_SELECT);
+        }
+        last_indc_update_us = esp_timer_get_time(); // Save last selection time
+        return;
+    }
+
+    if (selected_channel == EXAMPLE_ALL_CHANNELS) {
+        // All channels selected previously, restore the selected channel
+        selected_channel = selected_channel_backup;
+        ESP_LOGI(TAG, "Restored selected channel: %d", selected_channel);
+        stop_all_indicators_for_mode(INDICATOR_MODE_SELECT);
+        led_indicator_start(indicators[selected_channel], INDICATOR_MODE_SELECT);
+        return;
+    }
+
+    // Channel indicator is turned on, select the next channel
+    selected_channel = ((selected_channel + 1) % CONFIG_RELAY_CHN_COUNT);
+    ESP_LOGI(TAG, "Selected channel: %d", selected_channel);
+    // Update the indicator
+    stop_all_indicators_for_mode(INDICATOR_MODE_SELECT);
+    led_indicator_start(indicators[selected_channel], INDICATOR_MODE_SELECT);
+    last_indc_update_us = esp_timer_get_time(); // Save last selection time
+}
+
+static void on_click_select_all(void *arg, void *data)
+{
+    if (selected_channel == EXAMPLE_ALL_CHANNELS) {
+        ESP_LOGI(TAG, "All channels are selected already");
+        int64_t now_us = esp_timer_get_time();
+        uint32_t delta_ms = (now_us - last_indc_update_us) / 1000;
+        // If the indicators in sleep, wake up
+        if (delta_ms >= EXAMPLE_CHN_INDICATOR_ON_TIME_MS) {
+            start_all_indicators_for_mode(INDICATOR_MODE_SELECT);
+        }
+        return;
+    }
+
+    selected_channel_backup = selected_channel;
+    selected_channel = EXAMPLE_ALL_CHANNELS;
+    ESP_LOGI(TAG, "Selected all channels");
+    start_all_indicators_for_mode(INDICATOR_MODE_SELECT);
+    last_indc_update_us = esp_timer_get_time(); // Save last selection time
+}
+
+static void start_all_indicators_for_mode(indicator_mode_t mode)
+{
+    for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        led_indicator_start(indicators[i], mode);
+    }
+}
+
+static void stop_all_indicators_for_mode(indicator_mode_t mode)
+{
+    for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        led_indicator_stop(indicators[i], mode);
+        led_indicator_set_on_off(indicators[i], false);
+    }
+}
+
+static void example_event_listener(uint8_t ch, relay_chn_state_t old_state, relay_chn_state_t new_state)
+{
+    ESP_LOGI(TAG, "example_event_listener: State change for #%d, from %s to %s",
+                ch, relay_chn_state_to_str(old_state), relay_chn_state_to_str(new_state));
+    switch (new_state) {
+        case RELAY_CHN_STATE_FORWARD:
+        case RELAY_CHN_STATE_REVERSE:
+            led_indicator_start(indicators[ch], INDICATOR_MODE_RUNNING);
+            break;
+
+        case RELAY_CHN_STATE_STOPPED:
+        case RELAY_CHN_STATE_IDLE:
+            if (old_state == RELAY_CHN_STATE_FORWARD || old_state == RELAY_CHN_STATE_REVERSE) {
+                led_indicator_stop(indicators[ch], INDICATOR_MODE_RUNNING);
+                // Make sure the indicator turned off
+                led_indicator_set_on_off(indicators[ch], false);
+            }
+            else if (old_state == RELAY_CHN_STATE_TILT_FORWARD || old_state == RELAY_CHN_STATE_TILT_REVERSE) {
+                led_indicator_stop(indicators[ch], INDICATOR_MODE_TILTING);
+                // Make sure the indicator turned off
+                led_indicator_set_on_off(indicators[ch], false);
+            }
+            break;
+
+        case RELAY_CHN_STATE_TILT_FORWARD:
+        case RELAY_CHN_STATE_TILT_REVERSE:
+            led_indicator_start(indicators[ch], INDICATOR_MODE_TILTING);
+            break;
+
+        default: // No-op
+    }
+}
+
+static esp_err_t init_buttons()
+{
+    esp_err_t ret;
+    button_config_t btn_cfg = {0};
+
+    uint8_t active_level = CONFIG_EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL_LOW ? 0 : 1;
+
+    button_gpio_config_t btn_gpio_ccfg = {
+        .gpio_num = (gpio_num_t) CONFIG_EXAMPLE_RLCHN_BTN_UP_IO_NUM,
+        .active_level = active_level
+    };
+
+    ESP_LOGI(TAG, "Initializing buttons with active level: %u", active_level);
+    button_handle_t btn_up = NULL, btn_down = NULL, btn_stop = NULL, btn_select = NULL;
+    // --- Create buttons ---
+    ret = iot_button_new_gpio_device(&btn_cfg, &btn_gpio_ccfg, &btn_up);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to create UP button");
+    ESP_RETURN_ON_FALSE(btn_up != NULL, ret, TAG, "Failed to create UP button");
+
+    btn_gpio_ccfg.gpio_num = (gpio_num_t) CONFIG_EXAMPLE_RLCHN_BTN_DOWN_IO_NUM;
+    ret = iot_button_new_gpio_device(&btn_cfg, &btn_gpio_ccfg, &btn_down);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to create DOWN button");
+    ESP_RETURN_ON_FALSE(btn_down != NULL, ret, TAG, "Failed to create DOWN button");
+    
+    btn_gpio_ccfg.gpio_num = (gpio_num_t) CONFIG_EXAMPLE_RLCHN_BTN_STOP_IO_NUM;
+    ret = iot_button_new_gpio_device(&btn_cfg, &btn_gpio_ccfg, &btn_stop);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to create STOP button");
+    ESP_RETURN_ON_FALSE(btn_stop != NULL, ret, TAG, "Failed to create STOP button");
+    
+    btn_gpio_ccfg.gpio_num = (gpio_num_t) CONFIG_EXAMPLE_RLCHN_BTN_SELECT_IO_NUM;
+    ret = iot_button_new_gpio_device(&btn_cfg, &btn_gpio_ccfg, &btn_select);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to create SELECT button");
+    ESP_RETURN_ON_FALSE(btn_select != NULL, ret, TAG, "Failed to create SELECT button");
+    // --- Create buttons ---
+
+    // --- Register button callbacks ---
+    ESP_LOGI(TAG, "Setting up button callbacks. Configured long press time: %d ms", CONFIG_EXAMPLE_RLCHN_BTN_LONG_PRESS_TIME_MS);
+    button_event_args_t btn_event_args = {
+        .long_press.press_time = CONFIG_EXAMPLE_RLCHN_BTN_LONG_PRESS_TIME_MS
+    };
+    // --- Register UP and TILT_UP operations on UP button ---
+    ret = iot_button_register_cb(btn_up, BUTTON_SINGLE_CLICK, NULL, on_click_up, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register UP button click callback");
+    ret = iot_button_register_cb(btn_up, BUTTON_LONG_PRESS_START, &btn_event_args, on_click_tilt_up, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register TILT_UP button press callback");
+    ret = iot_button_register_cb(btn_up, BUTTON_LONG_PRESS_UP, NULL, on_release_tilt, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register TILT_UP button release callback");
+    
+    // --- Register DOWN and TILT_DOWN operations on DOWN button ---
+    ret = iot_button_register_cb(btn_down, BUTTON_SINGLE_CLICK, NULL, on_click_down, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register DOWN button click callback");
+    ret = iot_button_register_cb(btn_down, BUTTON_LONG_PRESS_START, &btn_event_args, on_click_tilt_down, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register TILT_DOWN button press callback");
+    ret = iot_button_register_cb(btn_down, BUTTON_LONG_PRESS_UP, NULL, on_release_tilt, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register TILT_DOWN button release callback");
+    
+    // --- Register STOP and FLIP operations on STOP ---
+    ret = iot_button_register_cb(btn_stop, BUTTON_SINGLE_CLICK, NULL, on_click_stop, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register STOP button click callback");
+    ret = iot_button_register_cb(btn_stop, BUTTON_LONG_PRESS_START, &btn_event_args, on_click_flip, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register FLIP button press callback");
+    
+    // --- Register channel SELECT and SELECT_ALL ---
+    ret = iot_button_register_cb(btn_select, BUTTON_SINGLE_CLICK, NULL, on_click_select, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register SELECT button click callback");
+    ret = iot_button_register_cb(btn_select, BUTTON_LONG_PRESS_START, &btn_event_args, on_click_select_all, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register SELECT_ALL press callback");
+
+    return ESP_OK;
+}
+
+static esp_err_t init_led_indicators()
+{
+    const int indicator_io_nums[CONFIG_RELAY_CHN_COUNT] = {
+        CONFIG_EXAMPLE_RLCHN_LED_INDICATOR1_IO_NUM,
+        CONFIG_EXAMPLE_RLCHN_LED_INDICATOR2_IO_NUM,
+        CONFIG_EXAMPLE_RLCHN_LED_INDICATOR3_IO_NUM
+    };
+    
+    for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        gpio_num_t indicator_io_num = (gpio_num_t) indicator_io_nums[i];
+        gpio_reset_pin(indicator_io_num); // Clear the output buffers
+    
+        led_indicator_gpio_config_t led_indicator_gpio_cfg = {
+            .gpio_num = indicator_io_num,
+            .is_active_level_high = true
+        };
+    
+        led_indicator_config_t led_indicator_cfg = {
+            .mode = LED_GPIO_MODE,
+            .led_indicator_gpio_config = &led_indicator_gpio_cfg,
+            .blink_lists = led_indicator_modes,
+            .blink_list_num = INDICATOR_MODE_MAX
+        };
+        
+        indicators[i] = led_indicator_create(&led_indicator_cfg);
+        if (!indicators[i]) {
+            ESP_LOGE(TAG, "Failed to create LED indicator");
+            return ESP_FAIL;
+        }
+    }
+
+    return ESP_OK;
+}

examples/relay_chn_multi/sdkconfig.defaults

@@ -0,0 +1,10 @@
+# Halt on panic
+CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT=y
+
+# Relay Channel Configs
+CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT=y
+CONFIG_RELAY_CHN_COUNT=3
+# Keep this as short as possible for example purposes
+CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC=5
+CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC=20
+CONFIG_RELAY_CHN_ENABLE_TILTING=y

examples/relay_chn_single/.gitignore

@@ -0,0 +1,6 @@
+build/
+sdkconfig
+sdkconfig.old
+
+# Exclude auto-populated settings file
+settings.json

examples/relay_chn_single/.vscode/c_cpp_properties.json

@@ -0,0 +1,23 @@
+{
+  "configurations": [
+    {
+      "name": "ESP-IDF",
+      "compilerPath": "${config:idf.toolsPath}/tools/riscv32-esp-elf/esp-14.2.0_20241119/riscv32-esp-elf/bin/riscv32-esp-elf-gcc",
+      "compileCommands": "/disk/Projeler/ESP-Components/relay_chn/examples/relay_chn_single/build/compile_commands.json",
+      "includePath": [
+        "${config:idf.espIdfPath}/components/**",
+        "${config:idf.espIdfPathWin}/components/**",
+        "${workspaceFolder}/**"
+      ],
+      "browse": {
+        "path": [
+          "${config:idf.espIdfPath}/components",
+          "${config:idf.espIdfPathWin}/components",
+          "${workspaceFolder}"
+        ],
+        "limitSymbolsToIncludedHeaders": true
+      }
+    }
+  ],
+  "version": 4
+}

examples/relay_chn_single/.vscode/launch.json

@@ -0,0 +1,15 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "gdbtarget",
+      "request": "attach",
+      "name": "Eclipse CDT GDB Adapter"
+    },
+    {
+      "type": "espidf",
+      "name": "Launch",
+      "request": "launch"
+    }
+  ]
+}

examples/relay_chn_single/CMakeLists.txt

@@ -0,0 +1,10 @@
+# For more information about build system see
+# https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/build-system.html
+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.5)
+
+set(COMPONENTS main)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(relay_chn_single)

examples/relay_chn_single/README.md

@@ -0,0 +1,126 @@
+# Relay Channel Single Example
+
+## Introduction
+
+This example demonstrates how to use the relay channel component to control a 2-relay setup with button inputs and LED status indication. It showcases:
+
+- Basic relay channel operations (forward/reverse running, stopping)
+- Secondary operations (tilting, direction flipping)
+- State change event handling with multiple listeners
+- Relay channel run limit
+- Button event handling using esp-iot-solution's button component
+- Visual feedback using esp-iot-solution's LED indicator component
+
+## How to Use Example
+
+This example has been tested on an `ESP32-C3-DevKitM-1U` board. However, it can be adapted to any ESP32-based board with at least six available GPIO pins by adjusting the configuration options.
+
+### Hardware Required
+
+* An ESP32-based development board
+* 2 relays connected to GPIO pins (default: GPIO4, GPIO5)
+* 3 buttons connected to GPIO pins:
+  - UP button (default: GPIO0)
+  - DOWN button (default: GPIO1) 
+  - STOP button (default: GPIO2)
+* 1 LED for status indication (default: GPIO3)
+
+#### Hardware Schematic
+
+![Hardware Schematic](example_schematic.png)
+
+### Configuration
+
+The example can be configured through `menuconfig` under "Relay Channel Single Example Configuration":
+
+1. Button active level (`EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL`)
+   - Select between active LOW or HIGH logic level for buttons
+   
+2. GPIO assignments:
+   - UP button pin (`EXAMPLE_RLCHN_BTN_UP_IO_NUM`, default: 0)
+   - DOWN button pin (`EXAMPLE_RLCHN_BTN_DOWN_IO_NUM`, default: 1)
+   - STOP button pin (`EXAMPLE_RLCHN_BTN_STOP_IO_NUM`, default: 2)
+   - LED indicator pin (`EXAMPLE_RLCHN_LED_INDICATOR_IO_NUM`, default: 3)
+
+3. Long press timing:
+   - `EXAMPLE_RLCHN_BTN_LONG_PRESS_TIME_MS`: Duration for long press actions (1500-3000ms, default: 2000ms)
+
+### Button Operations
+
+The example uses esp-iot-solution's `button` component to handle the following operations:
+
+- **UP button**:
+  * Short press: Start forward movement
+  * Long press: Start forward tilt (stops on release)
+
+- **DOWN button**: 
+  * Short press: Start reverse movement
+  * Long press: Start reverse tilt (stops on release)
+
+- **STOP button**:
+  * Short press: Stop movement
+  * Long press: Flip movement direction
+
+### LED Indicator States
+
+The example uses esp-iot-solution's `led_indicator` component to show different states:
+
+- **Running**: LED blinks at 300ms on, 100ms off
+- **Tilting**: Fast blink at 100ms on, 50ms off
+- **Operation Success**: Two quick blinks
+- **Operation Fail**: One long blink
+
+### Dependencies
+
+This example requires:
+- ESP-IDF v4.1 or later
+- esp-iot-solution components:
+  * button v4.1.1 or later
+  * led_indicator v1.1.1 or later
+- relay_chn component
+
+## Example Output
+When the application boots, it will wait for a button event. Then the two state listeners will print state changes.
+
+```log
+I (273) main_task: Calling app_main()
+I (273) RELAY_CHN_SINGLE_EXAMPLE: Initializing default NVS storage
+I (283) RELAY_CHN_SINGLE_EXAMPLE: nvs_flash_init: NVS flash init return: ESP_OK
+I (283) RELAY_CHN_SINGLE_EXAMPLE: Initializing relay channel
+I (293) gpio: GPIO[4]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (303) gpio: GPIO[5]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (313) RELAY_CHN_SINGLE_EXAMPLE: Initializing buttons
+I (313) RELAY_CHN_SINGLE_EXAMPLE: Initializing buttons with active level: 0
+I (323) gpio: GPIO[0]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (323) button: IoT Button Version: 4.1.3
+I (333) gpio: GPIO[1]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (343) gpio: GPIO[2]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (343) RELAY_CHN_SINGLE_EXAMPLE: Setting up button callbacks. Configured long press time: 2000 ms
+I (353) RELAY_CHN_SINGLE_EXAMPLE: Initializing LED indicator
+I (363) gpio: GPIO[3]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
+I (373) led_indicator: LED Indicator Version: 1.1.1
+I (373) gpio: GPIO[3]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
+I (383) led_indicator: Indicator create successfully. type:GPIO mode, hardware_data:0x3fc97be4, blink_lists:custom
+I (393) RELAY_CHN_SINGLE_EXAMPLE: Relay Channel Single Example is ready to operate
+I (403) main_task: Returned from app_main()
+I (3683) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_1: Defining new indicator mode for #0 and state change from 1 to 3
+I (3683) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_2: State change for #0, from IDLE to FORWARD
+I (9513) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_1: Defining new indicator mode for #0 and state change from 3 to 2
+I (9513) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_2: State change for #0, from FORWARD to STOPPED
+I (9523) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_1: Defining new indicator mode for #0 and state change from 2 to 6
+I (9533) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_2: State change for #0, from STOPPED to REVERSE_PENDING
+I (10313) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_1: Defining new indicator mode for #0 and state change from 6 to 4
+I (10313) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_2: State change for #0, from REVERSE_PENDING to REVERSE
+I (32173) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_1: Defining new indicator mode for #0 and state change from 4 to 2
+I (32173) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_2: State change for #0, from REVERSE to STOPPED
+I (32973) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_1: Defining new indicator mode for #0 and state change from 2 to 1
+I (32973) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_2: State change for #0, from STOPPED to IDLE
+I (36423) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_1: Defining new indicator mode for #0 and state change from 1 to 8
+I (36423) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_2: State change for #0, from IDLE to TILT_REVERSE
+I (41153) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_1: Defining new indicator mode for #0 and state change from 8 to 1
+I (41153) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_2: State change for #0, from TILT_REVERSE to IDLE
+I (47113) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_1: Defining new indicator mode for #0 and state change from 1 to 7
+I (47113) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_2: State change for #0, from IDLE to TILT_FORWARD
+I (51913) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_1: Defining new indicator mode for #0 and state change from 7 to 1
+I (51913) RELAY_CHN_SINGLE_EXAMPLE: example_event_listener_2: State change for #0, from TILT_FORWARD to IDLE
+```

examples/relay_chn_single/main/CMakeLists.txt

@@ -0,0 +1,2 @@
+idf_component_register(SRCS "relay_chn_single_main.c"
+                       PRIV_REQUIRES button led_indicator relay_chn)

examples/relay_chn_single/main/Kconfig.projbuild

@@ -0,0 +1,40 @@
+menu "Relay Channel Single Example Configuration"
+    
+    choice EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL
+        prompt "Choose an active level for buttons"
+        default EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL_LOW
+        help
+            Specify the active level for buttons.
+        
+        config EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL_LOW
+            bool "Active level LOW"
+
+        config EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL_HIGH
+            bool "Active level HIGH"
+    endchoice
+    
+    config EXAMPLE_RLCHN_BTN_UP_IO_NUM
+        int "GPIO number for UP button"
+        default 0
+    
+    config EXAMPLE_RLCHN_BTN_DOWN_IO_NUM
+        int "GPIO number for DOWN button"
+        default 1
+    
+    config EXAMPLE_RLCHN_BTN_STOP_IO_NUM
+        int "GPIO number for STOP button"
+        default 2
+    
+    config EXAMPLE_RLCHN_LED_INDICATOR_IO_NUM
+        int "GPIO number for LED indicator output"
+        default 3
+    
+    config EXAMPLE_RLCHN_BTN_LONG_PRESS_TIME_MS
+        int "Long press time in ms to start secondary actions"
+        range 1500 3000
+        default 2000
+        help
+            Long press time in milliseconds is required to start secondary actions 
+            like tilting and flipping.
+
+endmenu

examples/relay_chn_single/main/idf_component.yml

@@ -0,0 +1,8 @@
+dependencies:
+  idf:
+    version: '>=4.1.0'
+  espressif/button: ^4.1.1
+  espressif/led_indicator: ^1.1.1
+  relay_chn:
+    version: '*'
+    override_path: ../../../

examples/relay_chn_single/main/relay_chn_single_main.c

@@ -0,0 +1,290 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <stdio.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_err.h"
+#include "esp_log.h"
+#include "esp_check.h"
+#include "driver/gpio.h"
+#include "nvs.h"
+#include "nvs_flash.h"
+#include "button_gpio.h"
+#include "iot_button.h"
+#include "led_indicator.h"
+#include "relay_chn.h"
+
+static const char *TAG = "RELAY_CHN_SINGLE_EXAMPLE";
+
+/**
+ * @brief LED indicator modes for different states.
+ */
+typedef enum {
+    INDICATOR_MODE_OK,          /*!< OK/Success indication */
+    INDICATOR_MODE_FAIL,        /*!< Fail/Error indication */
+    INDICATOR_MODE_TILTING,     /*!< Tilting operation in progress */
+    INDICATOR_MODE_RUNNING,     /*!< Full run operation in progress */
+    INDICATOR_MODE_MAX          /*!< Maximum number of indicator modes */
+} indicator_mode_t;
+
+/** @brief Blink pattern for OK/Success indication. */
+static const blink_step_t indc_mode_ok[] = {
+    {LED_BLINK_HOLD, LED_STATE_ON, 100},    // step1: turn on LED 100 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 50},    // step2: turn off LED 50 ms
+    {LED_BLINK_HOLD, LED_STATE_ON, 100},    // step3: turn on LED 100 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 50},    // step4: turn off LED 50 ms
+    {LED_BLINK_STOP, 0, 0},                 // step5: stop blink (off)
+};
+
+/** @brief Blink pattern for Fail/Error indication. */
+static const blink_step_t indc_mode_fail[] = {
+    {LED_BLINK_HOLD, LED_STATE_ON, 1000},    // step1: turn on LED 1000 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 500},    // step2: turn off LED 500 ms
+    {LED_BLINK_STOP, 0, 0},                 // step4: stop blink (off)
+};
+
+/** @brief Blink pattern for full run operation. */
+static const blink_step_t indc_mode_running[] = {
+    {LED_BLINK_HOLD, LED_STATE_ON, 300},    // step1: turn on LED 300 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 100},   // step2: turn off LED 100 ms
+    {LED_BLINK_LOOP, 0, 0},                 // step3: loop from step1
+};
+
+/** @brief Blink pattern for tilting operation. */
+static const blink_step_t indc_mode_tilting[] = {
+    {LED_BLINK_HOLD, LED_STATE_ON, 100},    // step1: turn on LED 100 ms
+    {LED_BLINK_HOLD, LED_STATE_OFF, 50},    // step2: turn off LED 50 ms
+    {LED_BLINK_LOOP, 0, 0},                 // step3: loop from step1
+};
+
+/** @brief Array of LED indicator blink patterns. */
+blink_step_t const *led_indicator_modes[] = {
+    [INDICATOR_MODE_OK]         = indc_mode_ok,
+    [INDICATOR_MODE_FAIL]       = indc_mode_fail,
+    [INDICATOR_MODE_RUNNING]    = indc_mode_running,
+    [INDICATOR_MODE_TILTING]    = indc_mode_tilting,
+    [INDICATOR_MODE_MAX]        = NULL,
+};
+
+/** @brief Handle for the LED indicator. */
+static led_indicator_handle_t indicator = NULL;
+
+/**
+ * @brief Initializes the buttons for user interaction.
+ *
+ * This function configures and creates GPIO buttons for UP, DOWN, and STOP
+ * operations. It also registers callbacks for single-click and long-press
+ * events to control the relay channel.
+ *
+ * @return esp_err_t
+ *      - ESP_OK: Success
+ *      - Others: Fail
+ */
+static esp_err_t init_buttons(void);
+
+/**
+ * @brief Initializes the LED indicator.
+ *
+ * This function configures and creates the LED indicator used to provide
+ * visual feedback on the relay channel's status.
+ *
+ * @return esp_err_t
+ *      - ESP_OK: Success
+ *      - ESP_FAIL: Fail
+ */
+static esp_err_t init_led_indicator(void);
+
+/**
+ * @brief Event listener for relay channel state changes to control the LED indicator.
+ */
+static void example_event_listener_1(uint8_t ch, relay_chn_state_t old_state, relay_chn_state_t new_state);
+
+/**
+ * @brief Event listener for relay channel state changes to log the state transition.
+ */
+static void example_event_listener_2(uint8_t ch, relay_chn_state_t old_state, relay_chn_state_t new_state);
+
+void app_main(void)
+{
+    const uint8_t gpio_map[] = { 4, 5 };
+    const uint8_t gpio_count = sizeof(gpio_map) / sizeof(gpio_map[0]);
+
+    ESP_LOGI(TAG, "Initializing relay channel");
+    ESP_ERROR_CHECK(relay_chn_create(gpio_map, gpio_count));
+    ESP_ERROR_CHECK(relay_chn_register_listener(example_event_listener_1));
+    ESP_ERROR_CHECK(relay_chn_register_listener(example_event_listener_2));
+
+    ESP_LOGI(TAG, "Initializing buttons");
+    ESP_ERROR_CHECK(init_buttons());
+    ESP_LOGI(TAG, "Initializing LED indicator");
+    ESP_ERROR_CHECK(init_led_indicator());
+
+    ESP_LOGI(TAG, "Relay Channel Single Example is ready to operate");
+
+    // Indicate init was successful
+    led_indicator_start(indicator, INDICATOR_MODE_OK);
+}
+
+static void on_click_up(void *arg, void *data)
+{
+    relay_chn_run_forward();
+}
+
+static void on_click_down(void *arg, void *data)
+{
+    relay_chn_run_reverse();
+}
+
+static void on_click_stop(void *arg, void *data)
+{
+    relay_chn_stop();
+}
+
+static void on_click_flip(void *arg, void *data)
+{
+    relay_chn_flip_direction();
+    led_indicator_start(indicator, INDICATOR_MODE_OK);
+}
+
+static void on_click_tilt_up(void *arg, void *data)
+{
+    relay_chn_tilt_forward();
+}
+
+static void on_click_tilt_down(void *arg, void *data)
+{
+    relay_chn_tilt_reverse();
+}
+
+static void on_release_tilt(void *arg, void *data)
+{
+    relay_chn_tilt_stop();
+}
+
+static void example_event_listener_1(uint8_t ch, relay_chn_state_t old_state, relay_chn_state_t new_state)
+{
+    ESP_LOGI(TAG, "example_event_listener_1: Defining new indicator mode for #%d and state change from %d to %d", ch, old_state, new_state);
+    switch (new_state) {
+        case RELAY_CHN_STATE_FORWARD:
+        case RELAY_CHN_STATE_REVERSE:
+            led_indicator_start(indicator, INDICATOR_MODE_RUNNING);
+            break;
+
+        case RELAY_CHN_STATE_STOPPED:
+        case RELAY_CHN_STATE_IDLE:
+            if (old_state == RELAY_CHN_STATE_FORWARD || old_state == RELAY_CHN_STATE_REVERSE) {
+                led_indicator_stop(indicator, INDICATOR_MODE_RUNNING);
+                // Make sure the indicator turned off
+                led_indicator_set_on_off(indicator, false);
+            }
+            else if (old_state == RELAY_CHN_STATE_TILT_FORWARD || old_state == RELAY_CHN_STATE_TILT_REVERSE) {
+                led_indicator_stop(indicator, INDICATOR_MODE_TILTING);
+                // Make sure the indicator turned off
+                led_indicator_set_on_off(indicator, false);
+            }
+            break;
+
+        case RELAY_CHN_STATE_TILT_FORWARD:
+        case RELAY_CHN_STATE_TILT_REVERSE:
+            led_indicator_start(indicator, INDICATOR_MODE_TILTING);
+            break;
+
+        default: // No-op
+    }
+}
+
+static void example_event_listener_2(uint8_t ch, relay_chn_state_t old_state, relay_chn_state_t new_state)
+{
+    ESP_LOGI(TAG, "example_event_listener_2: State change for #%d, from %s to %s",
+                ch, relay_chn_state_to_str(old_state), relay_chn_state_to_str(new_state));
+}
+
+static esp_err_t init_buttons()
+{
+    esp_err_t ret;
+    button_config_t btn_cfg = {0};
+
+    uint8_t active_level = CONFIG_EXAMPLE_RLCHN_BTN_ACTIVE_LEVEL_LOW ? 0 : 1;
+
+    button_gpio_config_t btn_gpio_ccfg = {
+        .gpio_num = (gpio_num_t) CONFIG_EXAMPLE_RLCHN_BTN_UP_IO_NUM,
+        .active_level = active_level
+    };
+
+    ESP_LOGI(TAG, "Initializing buttons with active level: %u", active_level);
+    button_handle_t btn_up = NULL, btn_down = NULL, btn_stop = NULL;
+    // --- Create buttons ---
+    ret = iot_button_new_gpio_device(&btn_cfg, &btn_gpio_ccfg, &btn_up);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to create UP button");
+    ESP_RETURN_ON_FALSE(btn_up != NULL, ret, TAG, "Failed to create UP button");
+
+    btn_gpio_ccfg.gpio_num = (gpio_num_t) CONFIG_EXAMPLE_RLCHN_BTN_DOWN_IO_NUM;
+    ret = iot_button_new_gpio_device(&btn_cfg, &btn_gpio_ccfg, &btn_down);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to create DOWN button");
+    ESP_RETURN_ON_FALSE(btn_down != NULL, ret, TAG, "Failed to create DOWN button");
+    
+    btn_gpio_ccfg.gpio_num = (gpio_num_t) CONFIG_EXAMPLE_RLCHN_BTN_STOP_IO_NUM;
+    ret = iot_button_new_gpio_device(&btn_cfg, &btn_gpio_ccfg, &btn_stop);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to create STOP button");
+    ESP_RETURN_ON_FALSE(btn_stop != NULL, ret, TAG, "Failed to create STOP button");
+    // --- Create buttons ---
+
+    // --- Register button callbacks ---
+    ESP_LOGI(TAG, "Setting up button callbacks. Configured long press time: %d ms", CONFIG_EXAMPLE_RLCHN_BTN_LONG_PRESS_TIME_MS);
+    button_event_args_t btn_event_args = {
+        .long_press.press_time = CONFIG_EXAMPLE_RLCHN_BTN_LONG_PRESS_TIME_MS
+    };
+    // --- Register UP and TILT_UP operations on UP button ---
+    ret = iot_button_register_cb(btn_up, BUTTON_SINGLE_CLICK, NULL, on_click_up, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register UP button click callback");
+    ret = iot_button_register_cb(btn_up, BUTTON_LONG_PRESS_START, &btn_event_args, on_click_tilt_up, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register TILT_UP button press callback");
+    ret = iot_button_register_cb(btn_up, BUTTON_LONG_PRESS_UP, NULL, on_release_tilt, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register TILT_UP button release callback");
+    
+    // --- Register DOWN and TILT_DOWN operations on DOWN button ---
+    ret = iot_button_register_cb(btn_down, BUTTON_SINGLE_CLICK, NULL, on_click_down, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register DOWN button click callback");
+    ret = iot_button_register_cb(btn_down, BUTTON_LONG_PRESS_START, &btn_event_args, on_click_tilt_down, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register TILT_DOWN button press callback");
+    ret = iot_button_register_cb(btn_down, BUTTON_LONG_PRESS_UP, NULL, on_release_tilt, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register TILT_DOWN button release callback");
+    
+    // --- Register STOP and FLIP operations on STOP ---
+    ret = iot_button_register_cb(btn_stop, BUTTON_SINGLE_CLICK, NULL, on_click_stop, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register STOP button click callback");
+    ret = iot_button_register_cb(btn_stop, BUTTON_LONG_PRESS_START, &btn_event_args, on_click_flip, NULL);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to register FLIP button press callback");
+
+    return ESP_OK;
+}
+
+static esp_err_t init_led_indicator()
+{
+    const gpio_num_t indicator_io_num = (gpio_num_t) CONFIG_EXAMPLE_RLCHN_LED_INDICATOR_IO_NUM;
+    gpio_reset_pin(indicator_io_num); // Clear the output buffers
+
+    led_indicator_gpio_config_t led_indicator_gpio_cfg = {
+        .gpio_num = indicator_io_num,
+        .is_active_level_high = true
+    };
+
+    led_indicator_config_t led_indicator_cfg = {
+        .mode = LED_GPIO_MODE,
+        .led_indicator_gpio_config = &led_indicator_gpio_cfg,
+        .blink_lists = led_indicator_modes,
+        .blink_list_num = INDICATOR_MODE_MAX
+    };
+    
+    indicator = led_indicator_create(&led_indicator_cfg);
+    if (!indicator) {
+        ESP_LOGE(TAG, "Failed to create LED indicator");
+        return ESP_FAIL;
+    }
+
+    return ESP_OK;
+}

examples/relay_chn_single/sdkconfig.defaults

@@ -0,0 +1,9 @@
+# Halt on panic
+CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT=y
+
+# Relay Channel Configs
+CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT=y
+# Keep this as short as possible for example purposes
+CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC=5
+CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC=20
+CONFIG_RELAY_CHN_ENABLE_TILTING=y

idf_component.yml

@@ -1,6 +1,12 @@
-name: relay_chn
-version: "0.5.0"
-description: "Custom component for relay channel control"
+version: "1.0.0"
+description: "Relay channel driver for bipolar motors."
 license: "MIT"
 url: "https://git.kozmotronik.com.tr/KozmotronikTech/relay_chn"
-repository: "https://git.kozmotronik.com.tr/KozmotronikTech/relay_chn.git"
+repository: "https://git.kozmotronik.com.tr/KozmotronikTech/relay_chn.git"
+dependencies:
+  idf: ">=5.0"
+examples:
+  - path: examples/relay_chn_single
+  - path: examples/relay_chn_multi
+files:
+  use_gitignore: true

include/relay_chn.h

@@ -6,7 +6,7 @@
  * One relay channel consists of 2 output relays, hence 2 GPIO pins are required for each relay channel.
  * This module provides an API to control the relay channels, specifically to drive bipolar motors.
  * It also provides APIs to control the direction of the relay channel, bipolar motors in mind.
- * To prevent mechanical strain on the motor, the component automatically manages direction changes 
+ * To prevent mechanical strain on the motor, the component automatically manages direction changes
  * with a configurable inertia delay, protecting it from abrupt reversals.
  * The STOP command overrides any other command and clears the pending command if any.
  */
@@ -45,7 +45,7 @@ void relay_chn_destroy(void);
 
 /**
  * @brief Register a channel state change listener.
- * 
+ *
  * @param listener A function that implements relay_chn_state_listener_t interface.
  *
  * @return
@@ -58,11 +58,31 @@ esp_err_t relay_chn_register_listener(relay_chn_state_listener_t listener);
 
 /**
  * @brief Unregister a channel state change listener.
- * 
+ *
  * @param listener A function that implements relay_chn_state_listener_t interface.
  */
 void relay_chn_unregister_listener(relay_chn_state_listener_t listener);
 
+/**
+ * @brief Return the text presentation of an state.
+ *
+ * @param state A state with type of relay_chn_state_t.
+ * @return char* The text presentation of the state. "UNKNOWN" if the state is not known.
+ */
+char *relay_chn_state_to_str(relay_chn_state_t state);
+
+#if CONFIG_RELAY_CHN_ENABLE_TILTING
+/**
+ * @brief Get the default tilting sensitivity for the relay channel.
+ *
+ * This function retrieves the default sensitivity for the relay channel's automatic
+ * tilting mechanism.
+ *
+ * @return Sensitivity value in percentage: 0 - 100%.
+ */
+uint8_t relay_chn_tilt_get_default_sensitivity(void);
+#endif
+
 #if CONFIG_RELAY_CHN_COUNT > 1
 /**
  * @brief Get the state of the specified relay channel.
@@ -139,8 +159,8 @@ void relay_chn_ctl_run_reverse_all(void);
 /**
  * @brief Stops the relay channel specified by the channel ID.
  *
- * This function stops the operation of the relay channel identified by the 
- * provided channel ID. It is typically used to turn off or disable the relay 
+ * This function stops the operation of the relay channel identified by the
+ * provided channel ID. It is typically used to turn off or disable the relay
  * channel.
  *
  * @param chn_id The ID of the relay channel to stop.
@@ -150,7 +170,7 @@ void relay_chn_stop(uint8_t chn_id);
 /**
  * @brief Commands all configured relay channels to stop.
  *
- * This function iterates through all configured relay channels and issues a command 
+ * This function iterates through all configured relay channels and issues a command
  * to each to stop any ongoing movement.
  */
 void relay_chn_ctl_stop_all(void);
@@ -169,7 +189,7 @@ void relay_chn_flip_direction(uint8_t chn_id);
 /**
  * @brief Flips the logical direction of all configured relay channels.
  *
- * This function iterates through all configured relay channels and swaps the 
+ * This function iterates through all configured relay channels and swaps the
  * physical GPIO pins assigned to the forward and reverse directions for each.
  */
 void relay_chn_ctl_flip_direction_all(void);
@@ -203,7 +223,7 @@ esp_err_t relay_chn_ctl_get_direction_all(relay_chn_direction_t *directions);
  * @brief Get the run limit for the specified channel
  *
  * @param chn_id The ID of the relay channel to query.
- * 
+ *
  * @return The run limit value for the relevant channel if the channel ID is valid.
  *         0 if the channel ID is invalid.
  */
@@ -223,8 +243,8 @@ esp_err_t relay_chn_ctl_get_run_limit_all(uint16_t *limits_sec);
 
 /**
  * @brief Set the run limit for the specified channel
- * 
- * Sets the time limit in seconds for the specified channel. It will not proceed 
+ *
+ * Sets the time limit in seconds for the specified channel. It will not proceed
  * if the channel ID is invalid.
  * If the limit_sec value is lesser than the CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC,
  * the value will be set to CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC.
@@ -346,8 +366,8 @@ void relay_chn_tilt_set_sensitivity(uint8_t chn_id, uint8_t sensitivity);
  * The new sensitivities are persisted in NVS if enabled.
  *
  * @param sensitivities Pointer to an array containing the desired tilt sensitivities.
- * 
- * @return 
+ *
+ * @return
  *      - ESP_OK: Success
  *      - ESP_ERR_INVALID_ARG: When sensitivities parameter is NULL
  */
@@ -447,7 +467,7 @@ void relay_chn_flip_direction(void);
  * @brief Get the direction of the relay channel.
  *
  * This function retrieves the direction configuration of a relay channel.
- * 
+ *
  * @return The direction of the relay channel as a value of type
  *         relay_chn_direction_t.
  */
@@ -456,15 +476,15 @@ relay_chn_direction_t relay_chn_get_direction(void);
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
 /**
  * @brief Get the run limit for the channel
- * 
+ *
  * @return The run limit value for the channel.
  */
 uint16_t relay_chn_get_run_limit(void);
 
 /**
  * @brief Set the run limit for the channel
- * 
- * Sets the time limit in seconds for the channel. It will not proceed 
+ *
+ * Sets the time limit in seconds for the channel. It will not proceed
  * if the channel ID is invalid.
  * If the limit_sec value is lesser than the CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC,
  * the value will be set to CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC.

include/relay_chn_adapter.h

@@ -2,7 +2,7 @@
  * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
  *
  * SPDX-License-Identifier: MIT
- * 
+ *
  * An adapter header to expose the appropriate API functions to the public API
  * depending on the CONFIG_RELAY_CHN_COUNT value which determines single or multi mode.
  */
@@ -13,6 +13,36 @@
 extern "C" {
 #endif
 
+/**
+ * @brief Register a channel state change listener.
+ *
+ * @param listener A function that implements relay_chn_state_listener_t interface.
+ *
+ * @return
+ *     - ESP_OK: Success
+ *     - ESP_ERR_INVALID_ARG: Invalid argument
+ *     - ESP_ERR_NO_MEM: No enough memory
+ *     - ESP_FAIL: General failure
+ */
+extern esp_err_t relay_chn_notify_add_listener(relay_chn_state_listener_t listener);
+
+/**
+ * @brief Unregister a channel state change listener.
+ *
+ * @param listener A function that implements relay_chn_state_listener_t interface.
+ */
+extern void relay_chn_notify_remove_listener(relay_chn_state_listener_t listener);
+
+static inline esp_err_t relay_chn_register_listener(relay_chn_state_listener_t listener)
+{
+    return relay_chn_notify_add_listener(listener);
+}
+
+static inline void relay_chn_unregister_listener(relay_chn_state_listener_t listener)
+{
+    relay_chn_notify_remove_listener(listener);
+}
+
 #if CONFIG_RELAY_CHN_COUNT > 1
 /**
  * @brief Get the current state of a relay channel.
@@ -30,7 +60,7 @@ extern relay_chn_state_t relay_chn_ctl_get_state(uint8_t chn_id);
  * to hold `CONFIG_RELAY_CHN_COUNT` elements.
  *
  * @param states Pointer to an array where the states will be stored.
- * 
+ *
  * @return ESP_OK on success, ESP_ERR_INVALID_ARG if `states` is NULL.
  */
 extern esp_err_t relay_chn_ctl_get_state_all(relay_chn_state_t *states);
@@ -97,7 +127,7 @@ extern void relay_chn_ctl_flip_direction(uint8_t chn_id);
 /**
  * @brief Flips the logical direction of all configured relay channels.
  *
- * This function iterates through all configured relay channels and swaps the 
+ * This function iterates through all configured relay channels and swaps the
  * physical GPIO pins assigned to the forward and reverse directions for each.
  */
 extern void relay_chn_ctl_flip_direction_all(void);
@@ -192,7 +222,7 @@ static inline esp_err_t relay_chn_get_direction_all(relay_chn_direction_t *direc
  * @brief Get the run limit for the specified channel
  *
  * @param chn_id The ID of the relay channel to query.
- * 
+ *
  * @return The run limit value for the relevant channel if the channel ID is valid.
  *         0 if the channel ID is invalid.
  */
@@ -350,7 +380,7 @@ static inline relay_chn_direction_t relay_chn_get_direction(void)
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
 /**
  * @brief Get the run limit for the channel
- * 
+ *
  * @return The run limit value for the channel.
  */
 extern uint16_t relay_chn_ctl_get_run_limit(void);

private_include/relay_chn_core.h

@@ -18,10 +18,10 @@ extern "C" {
 
 /**
  * @brief Initializes the relay channel timer.
- * 
+ *
  * This function creates a timer for the relay channel to handle direction change inertia.
  * Required by *_ctl_* module.
- * 
+ *
  * @param chn_ctl Pointer to the relay channel control structure.
  * @return esp_err_t ESP_OK on success, or an error code on failure.
  */
@@ -30,12 +30,12 @@ esp_err_t relay_chn_init_timer(relay_chn_ctl_t *chn_ctl);
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
 /**
  * @brief Initializes the relay channel run limit timer.
- * 
+ *
  * This function creates a timer for the relay channel to handle run time limit.
  * Required by *_ctl_* module.
- * 
+ *
  * @param chn_ctl Pointer to the relay channel control structure.
- * 
+ *
  * @return esp_err_t ESP_OK on success, or an error code on failure.
  */
 esp_err_t relay_chn_init_run_limit_timer(relay_chn_ctl_t *chn_ctl);
@@ -43,10 +43,10 @@ esp_err_t relay_chn_init_run_limit_timer(relay_chn_ctl_t *chn_ctl);
 
 /**
  * @brief Issues a command to the relay channel.
- * 
+ *
  * Evaluates the current state of the relay channel and issues the command accordingly.
  * Required by *_core, *_ctl_* and *_tilt modules.
- * 
+ *
  * @param chn_ctl Pointer to the relay channel control structure.
  * @param cmd The command to issue.
  */
@@ -54,7 +54,7 @@ void relay_chn_issue_cmd(relay_chn_ctl_t* chn_ctl, relay_chn_cmd_t cmd);
 
 /**
  * @brief Dispatches a relay channel command.
- * 
+ *
  * @param chn_ctl Pointer to the relay channel control structure.
  * @param cmd The command to dispatch.
  */
@@ -62,7 +62,7 @@ void relay_chn_dispatch_cmd(relay_chn_ctl_t *chn_ctl, relay_chn_cmd_t cmd);
 
 /**
  * @brief Returns the string representation of a relay channel command.
- * 
+ *
  * @param cmd The relay channel command.
  * @return char* The string representation of the command.
  */
@@ -70,11 +70,11 @@ char *relay_chn_cmd_str(relay_chn_cmd_t cmd);
 
 /**
  * @brief Starts the ESP timer once with the specified time in milliseconds.
- * 
+ *
  * Starts the ESP timer to run once after the specified time.
  * If the timer is already running, it stops it first and then starts it again.
  * Required by *_ctl_* and *_tilt modules.
- * 
+ *
  * @param esp_timer The ESP timer handle.
  * @param time_ms The time in milliseconds to wait before the timer expires.
  * @return esp_err_t ESP_OK on success, or an error code on failure.
@@ -83,28 +83,20 @@ esp_err_t relay_chn_start_esp_timer_once(esp_timer_handle_t esp_timer, uint32_t
 
 /**
  * @brief Updates the state of the relay channel and notifies listeners.
- * 
+ *
  * This function updates the state of the relay channel and notifies all registered listeners
  * about the state change.
  * Required by *_ctl_* and *_tilt modules.
- * 
+ *
  * @param chn_ctl Pointer to the relay channel control structure.
  * @param new_state The new state to set for the relay channel.
  */
 void relay_chn_update_state(relay_chn_ctl_t *chn_ctl, relay_chn_state_t new_state);
 
-/**
- * @brief Return the text presentation of an state.
- * 
- * @param state A state with type of relay_chn_state_t.
- * @return char* The text presentation of the state. "UNKNOWN" if the state is not known.
- */
-char *relay_chn_state_str(relay_chn_state_t state);
-
 #if CONFIG_RELAY_CHN_COUNT > 1
 /**
  * @brief Check if the provided channel ID is valid.
- * 
+ *
  * @param chn_id Channel ID to check.
  * @return true Channel ID is valid.
  * @return false Channel ID is invalid.

private_include/relay_chn_ctl.h

@@ -16,17 +16,17 @@ extern "C" {
 
 /**
  * @brief Initialize the relay channel control.
- * 
+ *
  * @param output Pointer to the output object(s).
  * @param run_info Pointer to the runtime information object(s).
- * 
+ *
  * @return esp_err_t Returns ESP_OK on success, or an error code on failure.
  */
 esp_err_t relay_chn_ctl_init(relay_chn_output_t *output, relay_chn_run_info_t *run_info);
 
 /**
  * @brief Deinitialize the relay channel control.
- * 
+ *
  * This function cleans up resources used by the relay channel control.
  */
 void relay_chn_ctl_deinit(void);
@@ -34,16 +34,16 @@ void relay_chn_ctl_deinit(void);
 #if CONFIG_RELAY_CHN_COUNT > 1
 /**
  * @brief Get the control structure for a specific relay channel.
- * 
+ *
  * @param chn_id The ID of the relay channel to retrieve.
- * 
+ *
  * @return relay_chn_ctl_t* Pointer to the control structure for the specified channel, or NULL if not found.
  */
 relay_chn_ctl_t *relay_chn_ctl_get(uint8_t chn_id);
 
 /**
  * @brief Get the control structures for all relay channels.
- * 
+ *
  * @return relay_chn_ctl_t* Pointer to the array of control structures for all channels.
  */
 relay_chn_ctl_t *relay_chn_ctl_get_all(void);

private_include/relay_chn_notify.h

@@ -0,0 +1,51 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#include "esp_err.h"
+#include <stdint.h>
+#include "relay_chn_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Init the notify module.
+ *
+ * @return
+ *      - ESP_OK: Success
+ *      - ESP_ERR_NO_MEM: Not enough memory to create notify queue
+ */
+esp_err_t relay_chn_notify_init(void);
+
+/**
+ * @brief Deinit the notify module.
+ *
+ * This function cleans up resources used by the notify module.
+ */
+void relay_chn_notify_deinit(void);
+
+/**
+ * @brief Notify all registered listeners about a state change.
+ *
+ * This function sends a state change event to an internal queue, which will then
+ * be processed by a dedicated task to notify all registered listeners. This
+ * function is typically called internally by the relay channel core logic.
+ *
+ * @param chn_id The ID of the relay channel whose state has changed.
+ * @param old_state The previous state of the relay channel.
+ * @param new_state The new state of the relay channel.
+ */
+esp_err_t relay_chn_notify_state_change(uint8_t chn_id,
+                                        relay_chn_state_t old_state,
+                                        relay_chn_state_t new_state);
+
+#ifdef __cplusplus
+}
+#endif
+

private_include/relay_chn_nvs.h

@@ -18,9 +18,9 @@ extern "C" {
 
 /**
  * @brief Initialize NVS storage for relay channels.
- * 
- * @attention Before calling this function, make sure the NVS flash is initialised 
- * using either the nvs_flash_init() function for the default NVS partition or the 
+ *
+ * @attention Before calling this function, make sure the NVS flash is initialised
+ * using either the nvs_flash_init() function for the default NVS partition or the
  * nvs_flash_init_partition() function for a custom partition.
  *
  * @return ESP_OK on success, error code otherwise.
@@ -32,6 +32,10 @@ esp_err_t relay_chn_nvs_init(void);
  *
  * @param[in] ch Channel number.
  * @param[in] direction Direction to store.
+ *
+ * @note This operation is asynchronous. The value is queued to be written
+ *       by a background task. A subsequent `get` call may not immediately
+ *       reflect the new value.
  * @return ESP_OK on success, error code otherwise.
  */
 esp_err_t relay_chn_nvs_set_direction(uint8_t ch, relay_chn_direction_t direction);
@@ -41,16 +45,21 @@ esp_err_t relay_chn_nvs_set_direction(uint8_t ch, relay_chn_direction_t directio
  *
  * @param[in] ch Channel number.
  * @param[out] direction Pointer to store retrieved direction.
+ * @param[in] default_val Default value to use if not found in NVS.
  * @return ESP_OK on success, error code otherwise.
  */
-esp_err_t relay_chn_nvs_get_direction(uint8_t ch, relay_chn_direction_t *direction);
+esp_err_t relay_chn_nvs_get_direction(uint8_t ch, relay_chn_direction_t *direction, relay_chn_direction_t default_val);
 
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
 /**
  * @brief Store relay channel run limit in NVS.
  *
  * @param[in] ch Channel number.
- * @param[in] direction Run limit value to store.
+ * @param[in] limit_sec Run limit value to store.
+ *
+ * @note This operation is asynchronous. The value is queued to be written
+ *       by a background task. A subsequent `get` call may not immediately
+ *       reflect the new value.
  * @return ESP_OK on success, error code otherwise.
  */
 esp_err_t relay_chn_nvs_set_run_limit(uint8_t ch, uint16_t limit_sec);
@@ -59,10 +68,11 @@ esp_err_t relay_chn_nvs_set_run_limit(uint8_t ch, uint16_t limit_sec);
  * @brief Retrieve relay channel run limit from NVS.
  *
  * @param[in] ch Channel number.
- * @param[out] direction Pointer to store retrieved run limit value.
+ * @param[out] limit_sec Pointer to store retrieved run limit value.
+ * @param[in] default_val Default value to use if not found in NVS.
  * @return ESP_OK on success, error code otherwise.
  */
-esp_err_t relay_chn_nvs_get_run_limit(uint8_t ch, uint16_t *limit_sec);
+esp_err_t relay_chn_nvs_get_run_limit(uint8_t ch, uint16_t *limit_sec, uint16_t default_val);
 #endif // CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT == 1
 
 #if CONFIG_RELAY_CHN_ENABLE_TILTING
@@ -71,6 +81,10 @@ esp_err_t relay_chn_nvs_get_run_limit(uint8_t ch, uint16_t *limit_sec);
  *
  * @param[in] ch Channel number.
  * @param[in] sensitivity Sensitivity value to store.
+ *
+ * @note This operation is asynchronous. The value is queued to be written
+ *       by a background task. A subsequent `get` call may not immediately
+ *       reflect the new value.
  * @return ESP_OK on success, error code otherwise.
  */
 esp_err_t relay_chn_nvs_set_tilt_sensitivity(uint8_t ch, uint8_t sensitivity);
@@ -80,15 +94,20 @@ esp_err_t relay_chn_nvs_set_tilt_sensitivity(uint8_t ch, uint8_t sensitivity);
  *
  * @param[in] ch Channel number.
  * @param[out] sensitivity Pointer to store retrieved sensitivity.
+ * @param[in] default_val Default value to use if not found in NVS.
  * @return ESP_OK on success, error code otherwise.
  */
-esp_err_t relay_chn_nvs_get_tilt_sensitivity(uint8_t ch, uint8_t *sensitivity);
+esp_err_t relay_chn_nvs_get_tilt_sensitivity(uint8_t ch, uint8_t *sensitivity, uint8_t default_val);
 
 /**
  * @brief Store tilt counters in NVS.
  *
  * @param[in] ch Channel number.
  * @param[in] tilt_count Tilt count value.
+ *
+ * @note This operation is asynchronous. The value is queued to be written
+ *       by a background task. A subsequent `get` call may not immediately
+ *       reflect the new value.
  * @return ESP_OK on success, error code otherwise.
  */
 esp_err_t relay_chn_nvs_set_tilt_count(uint8_t ch, uint16_t tilt_count);
@@ -98,15 +117,17 @@ esp_err_t relay_chn_nvs_set_tilt_count(uint8_t ch, uint16_t tilt_count);
  *
  * @param[in] ch Channel number.
  * @param[out] tilt_count Pointer to store tilt count.
+ * @param[in] default_val Default value to use if not found in NVS.
  * @return ESP_OK on success, error code otherwise.
  */
-esp_err_t relay_chn_nvs_get_tilt_count(uint8_t ch, uint16_t *tilt_count);
+esp_err_t relay_chn_nvs_get_tilt_count(uint8_t ch, uint16_t *tilt_count, uint16_t default_val);
 #endif // CONFIG_RELAY_CHN_ENABLE_TILTING
 
 /**
  * @brief Erase all keys in the NVS namespace.
  *
  * This function will erase all key-value pairs in the NVS namespace used by relay channels.
+ * It will also flush all pending operations in the queue.
  *
  * @return ESP_OK on success, error code otherwise.
  */
@@ -114,10 +135,8 @@ esp_err_t relay_chn_nvs_erase_all(void);
 
 /**
  * @brief Deinitialize NVS storage for relay channels.
- *
- * @return ESP_OK on success, error code otherwise.
  */
-esp_err_t relay_chn_nvs_deinit(void);
+void relay_chn_nvs_deinit(void);
 
 #ifdef __cplusplus
 }

private_include/relay_chn_output.h

@@ -24,7 +24,7 @@ extern "C" {
  *
  * @param[in] gpio_map Array of GPIO pin numbers for each relay channel.
  * @param[in] gpio_count Number of GPIO pins (relay channels).
- * 
+ *
  * @return ESP_OK on success, error code otherwise.
  */
 esp_err_t relay_chn_output_init(const uint8_t* gpio_map, uint8_t gpio_count);
@@ -41,7 +41,7 @@ void relay_chn_output_deinit(void);
  * @brief Get the relay channel output object for a specific channel.
  *
  * @param[in] chn_id Channel ID.
- * 
+ *
  * @return Pointer to relay channel output object, or NULL if invalid.
  */
 relay_chn_output_t *relay_chn_output_get(uint8_t chn_id);
@@ -67,7 +67,7 @@ relay_chn_output_t *relay_chn_output_get(void);
  * Sets the relay channel to the stop state.
  *
  * @param[in] output Pointer to relay channel output object.
- * 
+ *
  * @return ESP_OK on success, error code otherwise.
  */
 esp_err_t relay_chn_output_stop(relay_chn_output_t *output);
@@ -76,7 +76,7 @@ esp_err_t relay_chn_output_stop(relay_chn_output_t *output);
  * @brief Set relay channel output to forward direction.
  *
  * @param[in] output Pointer to relay channel output object.
- * 
+ *
  * @return ESP_OK on success, error code otherwise.
  */
 esp_err_t relay_chn_output_forward(relay_chn_output_t *output);
@@ -85,7 +85,7 @@ esp_err_t relay_chn_output_forward(relay_chn_output_t *output);
  * @brief Set relay channel output to reverse direction.
  *
  * @param[in] output Pointer to relay channel output object.
- * 
+ *
  * @return ESP_OK on success, error code otherwise.
  */
 esp_err_t relay_chn_output_reverse(relay_chn_output_t *output);
@@ -103,7 +103,7 @@ void relay_chn_output_flip(relay_chn_output_t *output);
  * @brief Get the current direction of the relay channel output.
  *
  * @param[in] output Pointer to relay channel output object.
- * 
+ *
  * @return Current direction of the relay channel.
  */
 relay_chn_direction_t relay_chn_output_get_direction(relay_chn_output_t *output);

private_include/relay_chn_run_info.h

@@ -49,7 +49,7 @@ relay_chn_run_info_t *relay_chn_run_info_get(void);
  * @brief Get the last run command for a relay channel.
  *
  * @param[in] run_info Pointer to run information structure.
- * 
+ *
  * @return Last command that was executed, or RELAY_CHN_CMD_NONE if invalid.
  */
 relay_chn_cmd_t relay_chn_run_info_get_last_run_cmd(relay_chn_run_info_t *run_info);
@@ -66,7 +66,7 @@ void relay_chn_run_info_set_last_run_cmd(relay_chn_run_info_t *run_info, relay_c
  * @brief Get the timestamp of the last run command.
  *
  * @param[in] run_info Pointer to run information structure.
- * 
+ *
  * @return Timestamp in milliseconds of last command, or 0 if invalid.
  */
 uint32_t relay_chn_run_info_get_last_run_cmd_time_ms(relay_chn_run_info_t *run_info);

private_include/relay_chn_tilt.h

@@ -19,7 +19,7 @@ extern "C" {
  * Must be called before using any other tilt functions.
  *
  * @param[in] chn_ctls Array of relay channel control structures.
- * 
+ *
  * @return ESP_OK on success, error code otherwise.
  */
 esp_err_t relay_chn_tilt_init(relay_chn_ctl_t *chn_ctls);
@@ -34,12 +34,12 @@ void relay_chn_tilt_deinit(void);
 
 /**
  * @brief Dispatch a tilt command to a relay channel.
- * 
+ *
  * Queues a tilt command for execution on the specified channel.
  *
  * @param[in] tilt_ctl Pointer to tilt control structure.
  * @param[in] cmd Tilt command to execute.
- * 
+ *
  * @return ESP_OK on success, error code otherwise.
  */
 esp_err_t relay_chn_tilt_dispatch_cmd(relay_chn_tilt_ctl_t *tilt_ctl, relay_chn_tilt_cmd_t cmd);

scripts/run_tests.sh

@@ -10,7 +10,7 @@ if [[ -z "$IDF_PATH" ]]; then
 fi
 
 # ==== 2. Valid Modes and Defaults ====
-valid_test_tags=("core" "tilt" "listener" "all" "relay_chn" "nvs" "run_limit" "batch" "inertia" "direction" "auto" "sensitivity" "counter" "interrupt")
+valid_test_tags=("core" "tilt" "notify" "all" "relay_chn" "nvs" "run_limit" "batch" "inertia" "direction" "auto" "sensitivity" "counter" "interrupt")
 valid_test_profiles=("run_limit" "tilt" "nvs" "nvs_custom" "multi" "full_single" "full_multi")
 arg_tag="all" # Default to 'all' if no tag specified
 arg_profile="full_multi" # Default to 'full_multi' if no profile specified
@@ -24,7 +24,7 @@ print_help() {
     echo "This script builds and runs tests for the relay_chn component using QEMU."
     echo ""
     echo "Arguments:"
-    echo "  -t, --tag [relay_chn|core|tilt|listener|nvs|run_limit|batch|inertia|direction|auto|sensitivity|counter|interrupt|all]  Specify which test tag to run."
+    echo "  -t, --tag [relay_chn|core|tilt|notify|nvs|run_limit|batch|inertia|direction|auto|sensitivity|counter|interrupt|all]  Specify which test tag to run."
     echo ""
     echo "  If no tag is specified, it defaults to 'all'."
     echo ""
@@ -98,8 +98,7 @@ fi
 script_dir=$(dirname "$(readlink -f "$0")")
 project_root=$(dirname "$script_dir")
 
-echo "🔍 Searching for 'test_apps' directory in '$project_root'..."
-test_apps_dir=$(find "$project_root" -type d -name "test_apps" | head -n 1)
+test_apps_dir="${project_root}/test_apps"
 
 if [[ -z "$test_apps_dir" || ! -d "$test_apps_dir" ]]; then
     echo "❌ 'test_apps' directory not found within the project root: '$project_root'"
@@ -107,7 +106,7 @@ if [[ -z "$test_apps_dir" || ! -d "$test_apps_dir" ]]; then
     exit 1
 fi
 
-echo "✅ Found 'test_apps' at: $test_apps_dir"
+echo "⏳ Current time is: $(date +"%Y-%m-%d %H:%M:%S")"
 echo "🧪 Test mode: $arg_tag | Profile: $arg_profile"
 echo "🧹 Clean: $arg_clean | 📄 Log: $arg_log"
 

scripts/run_tests_all_profiles.sh

@@ -14,10 +14,15 @@ project_root=$(dirname "$script_dir")
 echo "Script dir: ${script_dir}"
 echo "Project root: ${project_root}"
 
-echo "🔍 Searching for 'test_apps' directory in '$project_root'..."
-test_apps_dir=$(find "$project_root" -type d -name "test_apps" | head -n 1)
+test_apps_dir="${project_root}/test_apps"
 echo "test_apps dir: ${test_apps_dir}"
 
+if [[ -z "$test_apps_dir" || ! -d "$test_apps_dir" ]]; then
+    echo "❌ 'test_apps' directory not found within the project root: '$project_root'"
+    echo "   Please ensure the script is in a 'scripts' directory and 'test_apps' is a sibling."
+    exit 1
+fi
+
 # Execute tests for all profiles
 mapfile -t profiles < <(find "${test_apps_dir}/profiles" -maxdepth 1 -type f)
 

src/relay_chn_core.c

@@ -11,6 +11,7 @@
 #include "relay_chn_output.h"
 #include "relay_chn_run_info.h"
 #include "relay_chn_ctl.h"
+#include "relay_chn_notify.h"
 
 #if CONFIG_RELAY_CHN_ENABLE_TILTING
 #include "relay_chn_tilt.h"
@@ -26,18 +27,9 @@
 static const char *TAG = "RELAY_CHN_CORE";
 
 
-// Structure to hold a listener entry in the linked list.
-typedef struct relay_chn_listener_entry_type {
-    relay_chn_state_listener_t listener;  /*!< The listener function pointer */
-    ListItem_t list_item;                 /*!< FreeRTOS list item */
-} relay_chn_listener_entry_t;
-
-// The list that holds references to the registered listeners.
-static List_t relay_chn_listener_list;
-
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
-/* 
- * Run limit timer callback immediately dispatches a STOP command for the 
+/*
+ * Run limit timer callback immediately dispatches a STOP command for the
  * relevant channel as soon as the run limit time times out
  */
 static void relay_chn_run_limit_timer_cb(void* arg)
@@ -125,9 +117,9 @@ esp_err_t relay_chn_create(const uint8_t* gpio_map, uint8_t gpio_count)
     ESP_RETURN_ON_ERROR(ret, TAG, "Failed to initialize tilt feature");
 #endif
 
-    // Init the state listener list
-    vListInitialise(&relay_chn_listener_list);
-
+    // Initialize the notify feature
+    ret = relay_chn_notify_init();
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to initialize notify feature");
     return ret;
 }
 
@@ -136,96 +128,15 @@ void relay_chn_destroy(void)
 #if CONFIG_RELAY_CHN_ENABLE_TILTING
     relay_chn_tilt_deinit();
 #endif
+    relay_chn_notify_deinit();
     relay_chn_ctl_deinit();
     relay_chn_output_deinit();
 
 #if CONFIG_RELAY_CHN_ENABLE_NVS
     relay_chn_nvs_deinit();
 #endif
-
-    // Free the listeners
-    while (listCURRENT_LIST_LENGTH(&relay_chn_listener_list) > 0) {
-        ListItem_t *pxItem = listGET_HEAD_ENTRY(&relay_chn_listener_list);
-        relay_chn_listener_entry_t *entry = listGET_LIST_ITEM_OWNER(pxItem);
-        uxListRemove(pxItem);
-        free(entry);
-    }
 }
 
-/**
- * @brief Find a listener entry in the list by its function pointer.
- *
- * This function replaces the old index-based search and is used to check
- * for the existence of a listener before registration or for finding it
- * during unregistration.
- *
- * @param listener The listener function pointer to find.
- * @return Pointer to the listener entry if found, otherwise NULL.
- */
-static relay_chn_listener_entry_t* find_listener_entry(relay_chn_state_listener_t listener)
-{
-    // Iterate through the linked list of listeners
-    for (ListItem_t *pxListItem = listGET_HEAD_ENTRY(&relay_chn_listener_list);
-         pxListItem != listGET_END_MARKER(&relay_chn_listener_list);
-         pxListItem = listGET_NEXT(pxListItem)) {
-        
-        relay_chn_listener_entry_t *entry = (relay_chn_listener_entry_t *) listGET_LIST_ITEM_OWNER(pxListItem);
-        if (entry->listener == listener) {
-            // Found the listener, return the entry
-            return entry;
-        }
-    }
-
-    // Listener was not found in the list
-    return NULL;
-}
-
-esp_err_t relay_chn_register_listener(relay_chn_state_listener_t listener)
-{
-    ESP_RETURN_ON_FALSE(listener, ESP_ERR_INVALID_ARG, TAG, "Listener cannot be NULL");
-
-    // Check for duplicates
-    if (find_listener_entry(listener) != NULL) {
-        ESP_LOGD(TAG, "Listener %p already registered", listener);
-        return ESP_OK;
-    }
-
-    // Allocate memory for the new listener entry
-    relay_chn_listener_entry_t *entry = malloc(sizeof(relay_chn_listener_entry_t));
-    ESP_RETURN_ON_FALSE(entry, ESP_ERR_NO_MEM, TAG, "Failed to allocate memory for listener");
-
-    // Initialize and insert the new listener
-    entry->listener = listener;
-    vListInitialiseItem(&(entry->list_item));
-    listSET_LIST_ITEM_OWNER(&(entry->list_item), (void *)entry);
-    vListInsertEnd(&relay_chn_listener_list, &(entry->list_item));
-
-    ESP_LOGD(TAG, "Registered listener %p", listener);
-    return ESP_OK;
-}
-
-void relay_chn_unregister_listener(relay_chn_state_listener_t listener)
-{
-    if (listener == NULL)
-    {
-        ESP_LOGD(TAG, "Cannot unregister a NULL listener.");
-        return;
-    }
-
-    // Find the listener entry in the list
-    relay_chn_listener_entry_t *entry = find_listener_entry(listener);
-
-    if (entry != NULL) {
-        // Remove the item from the list and free the allocated memory
-        uxListRemove(&(entry->list_item));
-        free(entry);
-        ESP_LOGD(TAG, "Unregistered listener %p", listener);
-    } else {
-        ESP_LOGD(TAG, "Listener %p not found for unregistration.", listener);
-    }
-}
-
-
 esp_err_t relay_chn_start_esp_timer_once(esp_timer_handle_t esp_timer, uint32_t time_ms)
 {
     esp_err_t ret = esp_timer_start_once(esp_timer, time_ms * 1000);
@@ -251,16 +162,7 @@ void relay_chn_update_state(relay_chn_ctl_t *chn_ctl, relay_chn_state_t new_stat
 
     chn_ctl->state = new_state;
 
-    // Iterate through the linked list of listeners and notify them.
-    for (ListItem_t *pxListItem = listGET_HEAD_ENTRY(&relay_chn_listener_list);
-         pxListItem != listGET_END_MARKER(&relay_chn_listener_list);
-         pxListItem = listGET_NEXT(pxListItem)) {
-        relay_chn_listener_entry_t *entry = (relay_chn_listener_entry_t *) listGET_LIST_ITEM_OWNER(pxListItem);
-        if (entry && entry->listener) {
-            // Emit the state change to the listeners
-            entry->listener(chn_ctl->id, old_state, new_state);
-        }
-    }
+    relay_chn_notify_state_change(chn_ctl->id, old_state, new_state);
 }
 
 static void relay_chn_execute_idle(relay_chn_ctl_t *chn_ctl);
@@ -293,17 +195,17 @@ static void relay_chn_stop_prv(relay_chn_ctl_t *chn_ctl)
 
 /**
  * @brief The command issuer function.
- * 
- * This function is the deciding logic for issuing a command to a relay channel. It evaluates 
+ *
+ * This function is the deciding logic for issuing a command to a relay channel. It evaluates
  * the current state of the channel before issuing the command. Then it decides whether to run
  * the command immediately or wait for the opposite inertia time.
- * 
+ *
  * The STOP command is an exception, it is always run immediately since it is safe in any case.
- * 
+ *
  * Another special consideration is the FLIP command. If the channel is running, the FLIP command
  * is issued after the channel is stopped. If the channel is stopped, the FLIP command is issued
  * immediately.
- * 
+ *
  * @param chn_ctl The relay channel to issue the command to.
  * @param cmd The command to issue.
  */
@@ -312,10 +214,10 @@ void relay_chn_issue_cmd(relay_chn_ctl_t* chn_ctl, relay_chn_cmd_t cmd)
     if (cmd == RELAY_CHN_CMD_NONE) {
         return;
     }
-    
+
     if (cmd == RELAY_CHN_CMD_STOP) {
-        if (chn_ctl->state == RELAY_CHN_STATE_STOPPED) {
-            return; // Do nothing if already stopped
+        if (chn_ctl->state == RELAY_CHN_STATE_STOPPED || chn_ctl->state == RELAY_CHN_STATE_IDLE) {
+            return; // Do nothing if already stopped or idle
         }
         // If the command is STOP, issue it immediately
         relay_chn_dispatch_cmd(chn_ctl, cmd);
@@ -330,7 +232,7 @@ void relay_chn_issue_cmd(relay_chn_ctl_t* chn_ctl, relay_chn_cmd_t cmd)
             // If the channel is idle, run the command immediately
             relay_chn_dispatch_cmd(chn_ctl, cmd);
             break;
-        
+
         case RELAY_CHN_STATE_FORWARD_PENDING:
         case RELAY_CHN_STATE_REVERSE_PENDING:
             // The channel is already waiting for the opposite inertia time,
@@ -339,7 +241,7 @@ void relay_chn_issue_cmd(relay_chn_ctl_t* chn_ctl, relay_chn_cmd_t cmd)
                 relay_chn_dispatch_cmd(chn_ctl, cmd);
             }
             break;
-        
+
         case RELAY_CHN_STATE_STOPPED:
             if (last_run_cmd == cmd || last_run_cmd == RELAY_CHN_CMD_NONE) {
                 // Since the state is STOPPED, the inertia timer should be running and must be invalidated
@@ -352,7 +254,7 @@ void relay_chn_issue_cmd(relay_chn_ctl_t* chn_ctl, relay_chn_cmd_t cmd)
                 relay_chn_dispatch_cmd(chn_ctl, cmd);
             }
             else {
-                // If the last run command is different from the current command, calculate the time passed 
+                // If the last run command is different from the current command, calculate the time passed
                 // since the last run command stopped and decide whether to run the command immediately or wait
                 uint32_t last_run_cmd_time_ms = relay_chn_run_info_get_last_run_cmd_time_ms(chn_ctl->run_info);
                 uint32_t current_time_ms = (uint32_t)(esp_timer_get_time() / 1000);
@@ -379,7 +281,7 @@ void relay_chn_issue_cmd(relay_chn_ctl_t* chn_ctl, relay_chn_cmd_t cmd)
                 }
             }
             break;
-        
+
         case RELAY_CHN_STATE_FORWARD:
         case RELAY_CHN_STATE_REVERSE:
             if (cmd == RELAY_CHN_CMD_FLIP) {
@@ -388,18 +290,18 @@ void relay_chn_issue_cmd(relay_chn_ctl_t* chn_ctl, relay_chn_cmd_t cmd)
                 relay_chn_dispatch_cmd(chn_ctl, cmd);
                 return;
             }
-            
+
             if (last_run_cmd == cmd) {
                 // If the last run command is the same as the current command, do nothing
                 return;
             }
-            
+
             // Stop the channel first before the schedule
             relay_chn_stop_prv(chn_ctl);
 
             // If the last run command is different from the current command, wait for the opposite inertia time
             chn_ctl->pending_cmd = cmd;
-            relay_chn_state_t new_state = cmd == RELAY_CHN_CMD_FORWARD 
+            relay_chn_state_t new_state = cmd == RELAY_CHN_CMD_FORWARD
                     ? RELAY_CHN_STATE_FORWARD_PENDING : RELAY_CHN_STATE_REVERSE_PENDING;
             relay_chn_update_state(chn_ctl, new_state);
             relay_chn_start_timer_or_idle(chn_ctl, chn_ctl->inertia_timer, CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS, "inertia");
@@ -464,9 +366,6 @@ static void relay_chn_execute_stop(relay_chn_ctl_t *chn_ctl)
 {
     relay_chn_stop_prv(chn_ctl);
 
-    // If there is any pending command, cancel it since the STOP command is issued right after it
-    // chn_ctl->pending_cmd = RELAY_CHN_CMD_NONE;
-
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
     esp_timer_stop(chn_ctl->run_limit_timer);
 #endif
@@ -480,8 +379,7 @@ static void relay_chn_execute_stop(relay_chn_ctl_t *chn_ctl)
         chn_ctl->pending_cmd = RELAY_CHN_CMD_IDLE;
         relay_chn_start_timer_or_idle(chn_ctl, chn_ctl->inertia_timer, CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS, "idle");
     } else {
-        // If the channel was not running one of the run or fwd, issue a free command immediately
-        // relay_chn_dispatch_cmd(chn_ctl, RELAY_CHN_CMD_IDLE);
+        // If the channel was not running forward or reverse, issue a free command immediately
         relay_chn_execute_idle(chn_ctl);
     }
 }
@@ -573,7 +471,7 @@ char *relay_chn_cmd_str(relay_chn_cmd_t cmd)
     }
 }
 
-char *relay_chn_state_str(relay_chn_state_t state)
+char *relay_chn_state_to_str(relay_chn_state_t state)
 {
     switch (state) {
         case RELAY_CHN_STATE_IDLE:

src/relay_chn_ctl_multi.c

@@ -5,6 +5,7 @@
  */
 
 #include "esp_check.h"
+#include "relay_chn.h"
 #include "relay_chn_priv_types.h"
 #include "relay_chn_core.h"
 #include "relay_chn_ctl.h"
@@ -16,7 +17,7 @@
 
 static const char *TAG = "RELAY_CHN_CTL";
 
-static relay_chn_ctl_t chn_ctls[CONFIG_RELAY_CHN_COUNT];
+static relay_chn_ctl_t s_chn_ctls[CONFIG_RELAY_CHN_COUNT];
 
 
 esp_err_t relay_chn_ctl_init(relay_chn_output_t *outputs, relay_chn_run_info_t *run_infos)
@@ -24,7 +25,7 @@ esp_err_t relay_chn_ctl_init(relay_chn_output_t *outputs, relay_chn_run_info_t *
     // Initialize all relay channels
     esp_err_t ret;
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        relay_chn_ctl_t* chn_ctl = &chn_ctls[i];
+        relay_chn_ctl_t* chn_ctl = &s_chn_ctls[i];
         relay_chn_output_t* output = &outputs[i];
         relay_chn_run_info_t* run_info = &run_infos[i];
 
@@ -38,10 +39,8 @@ esp_err_t relay_chn_ctl_init(relay_chn_output_t *outputs, relay_chn_run_info_t *
         uint16_t run_limit_sec = CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC;
 #if CONFIG_RELAY_CHN_ENABLE_NVS
         // Load run limit value from NVS
-        ret = relay_chn_nvs_get_run_limit(chn_ctl->id, &run_limit_sec);
-        if (ret != ESP_OK && ret != ESP_ERR_NVS_NOT_FOUND) {
-            ESP_LOGE(TAG, "Failed to load run limit from NVS for channel %d with error: %s", i, esp_err_to_name(ret));
-        }
+        ret = relay_chn_nvs_get_run_limit(chn_ctl->id, &run_limit_sec, CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC);
+        ESP_RETURN_ON_ERROR(ret, TAG, "Failed to load run limit from NVS for #%d with error: %s", i, esp_err_to_name(ret));
 #endif
         chn_ctl->run_limit_sec = run_limit_sec;
         ret = relay_chn_init_run_limit_timer(chn_ctl);
@@ -56,7 +55,7 @@ esp_err_t relay_chn_ctl_init(relay_chn_output_t *outputs, relay_chn_run_info_t *
 void relay_chn_ctl_deinit()
 {
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        relay_chn_ctl_t* chn_ctl = &chn_ctls[i];
+        relay_chn_ctl_t* chn_ctl = &s_chn_ctls[i];
         if (chn_ctl->inertia_timer != NULL) {
             esp_timer_delete(chn_ctl->inertia_timer);
             chn_ctl->inertia_timer = NULL;
@@ -73,7 +72,7 @@ void relay_chn_ctl_deinit()
 relay_chn_state_t relay_chn_ctl_get_state(uint8_t chn_id)
 {
     return relay_chn_is_channel_id_valid(chn_id) ?
-           chn_ctls[chn_id].state : RELAY_CHN_STATE_UNDEFINED;
+           s_chn_ctls[chn_id].state : RELAY_CHN_STATE_UNDEFINED;
 }
 
 esp_err_t relay_chn_ctl_get_state_all(relay_chn_state_t *states)
@@ -86,7 +85,7 @@ esp_err_t relay_chn_ctl_get_state_all(relay_chn_state_t *states)
             ESP_LOGW(TAG, "get_state_all: States have been copied until channel %d since states[%d] is NULL", i, i);
             break;
         }
-        *dest_state = chn_ctls[i].state;
+        *dest_state = s_chn_ctls[i].state;
     }
     return ESP_OK;
 }
@@ -94,22 +93,22 @@ esp_err_t relay_chn_ctl_get_state_all(relay_chn_state_t *states)
 char *relay_chn_ctl_get_state_str(uint8_t chn_id)
 {
     return relay_chn_is_channel_id_valid(chn_id)
-           ? relay_chn_state_str(chn_ctls[chn_id].state)
-           : relay_chn_state_str(RELAY_CHN_STATE_UNDEFINED);
+           ? relay_chn_state_to_str(s_chn_ctls[chn_id].state)
+           : relay_chn_state_to_str(RELAY_CHN_STATE_UNDEFINED);
 }
 
 
 static void relay_chn_ctl_issue_cmd_on_all_channels(relay_chn_cmd_t cmd)
 {
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        relay_chn_issue_cmd(&chn_ctls[i], cmd);
+        relay_chn_issue_cmd(&s_chn_ctls[i], cmd);
     }
 }
 
 void relay_chn_ctl_run_forward(uint8_t chn_id)
 {
     if (relay_chn_is_channel_id_valid(chn_id))
-        relay_chn_issue_cmd(&chn_ctls[chn_id], RELAY_CHN_CMD_FORWARD);
+        relay_chn_issue_cmd(&s_chn_ctls[chn_id], RELAY_CHN_CMD_FORWARD);
 }
 
 void relay_chn_ctl_run_forward_all()
@@ -120,7 +119,7 @@ void relay_chn_ctl_run_forward_all()
 void relay_chn_ctl_run_reverse(uint8_t chn_id)
 {
     if (relay_chn_is_channel_id_valid(chn_id))
-        relay_chn_issue_cmd(&chn_ctls[chn_id], RELAY_CHN_CMD_REVERSE);
+        relay_chn_issue_cmd(&s_chn_ctls[chn_id], RELAY_CHN_CMD_REVERSE);
 }
 
 void relay_chn_ctl_run_reverse_all()
@@ -131,7 +130,7 @@ void relay_chn_ctl_run_reverse_all()
 void relay_chn_ctl_stop(uint8_t chn_id)
 {
     if (relay_chn_is_channel_id_valid(chn_id))
-        relay_chn_issue_cmd(&chn_ctls[chn_id], RELAY_CHN_CMD_STOP);
+        relay_chn_issue_cmd(&s_chn_ctls[chn_id], RELAY_CHN_CMD_STOP);
 }
 
 void relay_chn_ctl_stop_all()
@@ -142,7 +141,7 @@ void relay_chn_ctl_stop_all()
 void relay_chn_ctl_flip_direction(uint8_t chn_id)
 {
     if (relay_chn_is_channel_id_valid(chn_id))
-        relay_chn_issue_cmd(&chn_ctls[chn_id], RELAY_CHN_CMD_FLIP);    
+        relay_chn_issue_cmd(&s_chn_ctls[chn_id], RELAY_CHN_CMD_FLIP);
 }
 
 void relay_chn_ctl_flip_direction_all()
@@ -153,7 +152,7 @@ void relay_chn_ctl_flip_direction_all()
 relay_chn_direction_t relay_chn_ctl_get_direction(uint8_t chn_id)
 {
     return relay_chn_is_channel_id_valid(chn_id)
-           ? relay_chn_output_get_direction(chn_ctls[chn_id].output)
+           ? relay_chn_output_get_direction(s_chn_ctls[chn_id].output)
            : RELAY_CHN_DIRECTION_DEFAULT;
 }
 
@@ -167,7 +166,7 @@ esp_err_t relay_chn_ctl_get_direction_all(relay_chn_direction_t *directions)
             ESP_LOGW(TAG, "get_direction_all: Directions have been copied until channel %d since directions[%d] is NULL", i, i);
             break;
         }
-        *dest_direction = relay_chn_output_get_direction(chn_ctls[i].output);
+        *dest_direction = relay_chn_output_get_direction(s_chn_ctls[i].output);
     }
     return ESP_OK;
 }
@@ -175,7 +174,7 @@ esp_err_t relay_chn_ctl_get_direction_all(relay_chn_direction_t *directions)
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
 uint16_t relay_chn_ctl_get_run_limit(uint8_t chn_id)
 {
-    return relay_chn_is_channel_id_valid(chn_id) ? chn_ctls[chn_id].run_limit_sec : 0;
+    return relay_chn_is_channel_id_valid(chn_id) ? s_chn_ctls[chn_id].run_limit_sec : 0;
 }
 
 esp_err_t relay_chn_ctl_get_run_limit_all(uint16_t *limits_sec)
@@ -188,7 +187,7 @@ esp_err_t relay_chn_ctl_get_run_limit_all(uint16_t *limits_sec)
             ESP_LOGW(TAG, "get_run_limit_all: Run limits have been copied until channel %d since limits_sec[%d] is NULL", i, i);
             break;
         }
-        *dest_limit_sec = chn_ctls[i].run_limit_sec;
+        *dest_limit_sec = s_chn_ctls[i].run_limit_sec;
     }
     return ESP_OK;
 }
@@ -201,7 +200,7 @@ static void relay_chn_ctl_set_run_limit_common(uint8_t chn_id, uint16_t limit_se
     else if (limit_sec < CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC)
         limit_sec = CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC;
 
-    chn_ctls[chn_id].run_limit_sec = limit_sec;
+    s_chn_ctls[chn_id].run_limit_sec = limit_sec;
 
 #if CONFIG_RELAY_CHN_ENABLE_NVS
     relay_chn_nvs_set_run_limit(chn_id, limit_sec);
@@ -243,10 +242,10 @@ esp_err_t relay_chn_ctl_set_run_limit_all_with(uint16_t limit_sec)
 
 relay_chn_ctl_t *relay_chn_ctl_get(uint8_t chn_id)
 {
-    return relay_chn_is_channel_id_valid(chn_id) ? &chn_ctls[chn_id] : NULL;
+    return relay_chn_is_channel_id_valid(chn_id) ? &s_chn_ctls[chn_id] : NULL;
 }
 
 relay_chn_ctl_t *relay_chn_ctl_get_all(void)
 {
-    return chn_ctls;
+    return s_chn_ctls;
 }

src/relay_chn_ctl_single.c

@@ -5,6 +5,7 @@
  */
 
 #include "esp_check.h"
+#include "relay_chn.h"
 #include "relay_chn_priv_types.h"
 #include "relay_chn_core.h"
 #include "relay_chn_ctl.h"
@@ -14,47 +15,45 @@
 #include "relay_chn_nvs.h"
 #endif
 
-static const char *TAG = "RELAY_CHN_CTL";
+static const char *TAG __attribute__((unused)) = "RELAY_CHN_CTL";
 
-static relay_chn_ctl_t chn_ctl;
+static relay_chn_ctl_t s_chn_ctl;
 
 
 esp_err_t relay_chn_ctl_init(relay_chn_output_t *output, relay_chn_run_info_t *run_info)
 {
     // Initialize the relay channel
-    chn_ctl.id = 0; // Single channel, so ID is 0
-    chn_ctl.state = RELAY_CHN_STATE_IDLE;
-    chn_ctl.pending_cmd = RELAY_CHN_CMD_NONE;
-    chn_ctl.output = output;
-    chn_ctl.run_info = run_info;
+    s_chn_ctl.id = 0; // Single channel, so ID is 0
+    s_chn_ctl.state = RELAY_CHN_STATE_IDLE;
+    s_chn_ctl.pending_cmd = RELAY_CHN_CMD_NONE;
+    s_chn_ctl.output = output;
+    s_chn_ctl.run_info = run_info;
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
     uint16_t run_limit_sec = CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC;
     esp_err_t ret;
 #if CONFIG_RELAY_CHN_ENABLE_NVS
     // Load run limit value from NVS
-    ret = relay_chn_nvs_get_run_limit(chn_ctl.id, &run_limit_sec);
-    if (ret != ESP_OK && ret != ESP_ERR_NVS_NOT_FOUND) {
-        ESP_LOGE(TAG, "Failed to load run limit from NVS with error: %s", esp_err_to_name(ret));
-    }
+    ret = relay_chn_nvs_get_run_limit(s_chn_ctl.id, &run_limit_sec, CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to load run limit from NVS with error: %s", esp_err_to_name(ret));
 #endif
-    chn_ctl.run_limit_sec = run_limit_sec;
-    ret = relay_chn_init_run_limit_timer(&chn_ctl);
+    s_chn_ctl.run_limit_sec = run_limit_sec;
+    ret = relay_chn_init_run_limit_timer(&s_chn_ctl);
     ESP_RETURN_ON_ERROR(ret, TAG, "Failed to initialize run limit timer");
 #endif
-    return relay_chn_init_timer(&chn_ctl); // Create direction change inertia timer
+    return relay_chn_init_timer(&s_chn_ctl); // Create direction change inertia timer
 }
 
 
 void relay_chn_ctl_deinit()
 {
-    if (chn_ctl.inertia_timer != NULL) {
-        esp_timer_delete(chn_ctl.inertia_timer);
-        chn_ctl.inertia_timer = NULL;
+    if (s_chn_ctl.inertia_timer != NULL) {
+        esp_timer_delete(s_chn_ctl.inertia_timer);
+        s_chn_ctl.inertia_timer = NULL;
     }
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
-    if (chn_ctl.run_limit_timer != NULL) {
-        esp_timer_delete(chn_ctl.run_limit_timer);
-        chn_ctl.run_limit_timer = NULL;
+    if (s_chn_ctl.run_limit_timer != NULL) {
+    esp_timer_delete(s_chn_ctl.run_limit_timer);
+        s_chn_ctl.run_limit_timer = NULL;
     }
 #endif
 }
@@ -62,43 +61,43 @@ void relay_chn_ctl_deinit()
 /* relay_chn APIs */
 relay_chn_state_t relay_chn_ctl_get_state()
 {
-    return chn_ctl.state;
+    return s_chn_ctl.state;
 }
 
 char *relay_chn_ctl_get_state_str()
 {
-    return relay_chn_state_str(chn_ctl.state);
+    return relay_chn_state_to_str(s_chn_ctl.state);
 }
 
 void relay_chn_ctl_run_forward()
 {
-    relay_chn_issue_cmd(&chn_ctl, RELAY_CHN_CMD_FORWARD);
+    relay_chn_issue_cmd(&s_chn_ctl, RELAY_CHN_CMD_FORWARD);
 }
 
 void relay_chn_ctl_run_reverse()
 {
-    relay_chn_issue_cmd(&chn_ctl, RELAY_CHN_CMD_REVERSE);
+    relay_chn_issue_cmd(&s_chn_ctl, RELAY_CHN_CMD_REVERSE);
 }
 
 void relay_chn_ctl_stop()
 {
-    relay_chn_issue_cmd(&chn_ctl, RELAY_CHN_CMD_STOP);
+    relay_chn_issue_cmd(&s_chn_ctl, RELAY_CHN_CMD_STOP);
 }
 
 void relay_chn_ctl_flip_direction()
 {
-    relay_chn_issue_cmd(&chn_ctl, RELAY_CHN_CMD_FLIP);    
+    relay_chn_issue_cmd(&s_chn_ctl, RELAY_CHN_CMD_FLIP);
 }
 
 relay_chn_direction_t relay_chn_ctl_get_direction()
 {
-    return relay_chn_output_get_direction(chn_ctl.output);
+    return relay_chn_output_get_direction(s_chn_ctl.output);
 }
 
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
 uint16_t relay_chn_ctl_get_run_limit()
 {
-    return chn_ctl.run_limit_sec;
+return s_chn_ctl.run_limit_sec;
 }
 
 void relay_chn_ctl_set_run_limit(uint16_t limit_sec)
@@ -108,17 +107,17 @@ void relay_chn_ctl_set_run_limit(uint16_t limit_sec)
         limit_sec = CONFIG_RELAY_CHN_RUN_LIMIT_MAX_SEC;
     else if (limit_sec < CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC)
         limit_sec = CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC;
-    
-    chn_ctl.run_limit_sec = limit_sec;
+
+    s_chn_ctl.run_limit_sec = limit_sec;
 
 #if CONFIG_RELAY_CHN_ENABLE_NVS
-    relay_chn_nvs_set_run_limit(chn_ctl.id, limit_sec);
+    relay_chn_nvs_set_run_limit(s_chn_ctl.id, limit_sec);
 #endif
-} 
+}
 #endif
 /* relay_chn APIs */
 
 relay_chn_ctl_t *relay_chn_ctl_get()
 {
-    return &chn_ctl;
+    return &s_chn_ctl;
 }

src/relay_chn_notify.c

@@ -0,0 +1,268 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/queue.h"
+#include "esp_log.h"
+#include "esp_check.h"
+#include "relay_chn_notify.h"
+
+static const char *TAG = "RELAY_CHN_NOTIFY";
+
+// --- Config ---
+#define RELAY_CHN_NOTIFY_QUEUE_LEN  (16 + CONFIG_RELAY_CHN_COUNT * 4)
+#define RELAY_CHN_NOTIFY_TASK_STACK 2048
+#define RELAY_CHN_NOTIFY_TASK_PRIO  (tskIDLE_PRIORITY + 5)
+
+/// @brief Structure to hold a listener entry in the linked list.
+typedef struct relay_chn_listener_entry_type {
+    relay_chn_state_listener_t listener;  /*!< The listener function pointer */
+    ListItem_t list_item;                 /*!< FreeRTOS list item */
+} relay_chn_listener_entry_t;
+
+/// @brief Command types for the notification queue.
+typedef enum {
+    RELAY_CHN_NOTIFY_CMD_BROADCAST,         /*!< A relay channel state has changed. */
+    RELAY_CHN_NOTIFY_CMD_ADD_LISTENER,      /*!< Request to add a new listener. */
+    RELAY_CHN_NOTIFY_CMD_REMOVE_LISTENER,   /*!< Request to remove a listener. */
+} relay_chn_notify_cmd_t;
+
+/// @brief Payload for a state change event.
+typedef struct {
+    uint8_t chn_id;
+    relay_chn_state_t old_state;
+    relay_chn_state_t new_state;
+} relay_chn_notify_event_data_t;
+
+/// @brief The command structure sent to the notification queue.
+typedef struct {
+    relay_chn_notify_cmd_t cmd;
+    union {
+        relay_chn_notify_event_data_t event_data; /*!< Used for RELAY_CHN_NOTIFY_CMD_BROADCAST */
+        relay_chn_state_listener_t listener;      /*!< Used for ADD/REMOVE listener commands */
+    } payload;
+} relay_chn_notify_msg_t;
+
+// The list that holds references to the registered listeners.
+static List_t s_listeners;
+
+static QueueHandle_t s_notify_queue = NULL;
+static TaskHandle_t s_notify_task = NULL;
+
+static void relay_chn_notify_task(void *arg);
+
+
+esp_err_t relay_chn_notify_init(void)
+{
+    if (s_notify_queue != NULL) {
+        return ESP_OK;
+    }
+
+    s_notify_queue = xQueueCreate(RELAY_CHN_NOTIFY_QUEUE_LEN, sizeof(relay_chn_notify_msg_t));
+    if (!s_notify_queue) {
+        ESP_LOGE(TAG, "Failed to create notify queue");
+        return ESP_ERR_NO_MEM;
+    }
+
+    // Create the notify dispatcher task
+    BaseType_t ret = xTaskCreate(relay_chn_notify_task, "task_rlch_ntfy",
+                                 RELAY_CHN_NOTIFY_TASK_STACK, NULL,
+                                 RELAY_CHN_NOTIFY_TASK_PRIO, &s_notify_task);
+    if (ret != pdPASS) {
+        ESP_LOGE(TAG, "Failed to create notify task");
+        return ESP_ERR_NO_MEM;
+    }
+
+    // Init the state listener list
+    vListInitialise(&s_listeners);
+
+    return ESP_OK;
+}
+
+void relay_chn_notify_deinit(void)
+{
+    if (s_notify_task != NULL) {
+        vTaskDelete(s_notify_task);
+        s_notify_task = NULL;
+    }
+
+    if (s_notify_queue != NULL) {
+        vQueueDelete(s_notify_queue);
+        s_notify_queue = NULL;
+    }
+
+    if (!listLIST_IS_EMPTY(&s_listeners)) {
+        // Free the listeners
+        while (listCURRENT_LIST_LENGTH(&s_listeners) > 0) {
+            ListItem_t *pxItem = listGET_HEAD_ENTRY(&s_listeners);
+            relay_chn_listener_entry_t *entry = listGET_LIST_ITEM_OWNER(pxItem);
+            uxListRemove(pxItem);
+            free(entry);
+        }
+    }
+}
+
+/**
+ * @brief Find a listener entry in the list by its function pointer.
+ *
+ * This function replaces the old index-based search and is used to check
+ * for the existence of a listener before registration or for finding it
+ * during unregistration.
+ *
+ * @param listener The listener function pointer to find.
+ * @return Pointer to the listener entry if found, otherwise NULL.
+ */
+static relay_chn_listener_entry_t* find_listener_entry(relay_chn_state_listener_t listener)
+{
+    if (listLIST_IS_EMPTY(&s_listeners)) {
+        ESP_LOGD(TAG, "No listeners registered");
+        return NULL;
+    }
+
+    // Iterate through the linked list of listeners
+    for (ListItem_t *pxListItem = listGET_HEAD_ENTRY(&s_listeners);
+         pxListItem != listGET_END_MARKER(&s_listeners);
+         pxListItem = listGET_NEXT(pxListItem)) {
+
+        relay_chn_listener_entry_t *entry = (relay_chn_listener_entry_t *) listGET_LIST_ITEM_OWNER(pxListItem);
+        if (entry->listener == listener) {
+            // Found the listener, return the entry
+            return entry;
+        }
+    }
+
+    // Listener was not found in the list
+    return NULL;
+}
+
+static void do_add_listener(relay_chn_state_listener_t listener)
+{
+    // This is now only called from the dispatcher task, so no mutex needed.
+    if (find_listener_entry(listener) != NULL) {
+        ESP_LOGD(TAG, "Listener %p already registered", listener);
+        return;
+    }
+    relay_chn_listener_entry_t *entry = malloc(sizeof(relay_chn_listener_entry_t));
+    if (!entry) {
+        ESP_LOGE(TAG, "Failed to allocate memory for listener");
+        return;
+    }
+    entry->listener = listener;
+    vListInitialiseItem(&(entry->list_item));
+    listSET_LIST_ITEM_OWNER(&(entry->list_item), (void *)entry);
+    vListInsertEnd(&s_listeners, &(entry->list_item));
+    ESP_LOGD(TAG, "Registered listener %p", listener);
+}
+
+static void do_remove_listener(relay_chn_state_listener_t listener)
+{
+    // This is now only called from the dispatcher task, so no mutex needed.
+    relay_chn_listener_entry_t *entry = find_listener_entry(listener);
+    if (entry != NULL) {
+        uxListRemove(&(entry->list_item));
+        free(entry);
+        ESP_LOGD(TAG, "Unregistered listener %p", listener);
+    } else {
+        ESP_LOGD(TAG, "Listener %p not found for unregistration.", listener);
+    }
+
+    if (listLIST_IS_EMPTY(&s_listeners)) {
+        // Flush all pending notifications in the queue
+        xQueueReset(s_notify_queue);
+    }
+}
+
+esp_err_t relay_chn_notify_add_listener(relay_chn_state_listener_t listener)
+{
+    ESP_RETURN_ON_FALSE(listener, ESP_ERR_INVALID_ARG, TAG, "Listener cannot be NULL");
+    ESP_RETURN_ON_FALSE(s_notify_queue, ESP_ERR_INVALID_STATE, TAG, "Notify module not initialized");
+
+    relay_chn_notify_msg_t msg = { .cmd = RELAY_CHN_NOTIFY_CMD_ADD_LISTENER, .payload.listener = listener };
+    if (xQueueSend(s_notify_queue, &msg, 0) != pdTRUE) {
+        ESP_LOGE(TAG, "Notify queue is full, failed to queue add_listener");
+        return ESP_FAIL;
+    }
+    return ESP_OK;
+}
+
+void relay_chn_notify_remove_listener(relay_chn_state_listener_t listener)
+{
+    if (listener == NULL) {
+        ESP_LOGD(TAG, "Cannot unregister a NULL listener.");
+        return;
+    }
+    if (!s_notify_queue) {
+        ESP_LOGE(TAG, "Notify module not initialized, cannot remove listener");
+        return;
+    }
+
+    relay_chn_notify_msg_t msg = { .cmd = RELAY_CHN_NOTIFY_CMD_REMOVE_LISTENER, .payload.listener = listener };
+    if (xQueueSendToFront(s_notify_queue, &msg, 0) != pdTRUE) {
+        ESP_LOGW(TAG, "Notify queue is full, failed to queue remove_listener");
+    }
+}
+
+esp_err_t relay_chn_notify_state_change(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state)
+{
+    if (!s_notify_queue) {
+        return ESP_ERR_INVALID_STATE;
+    }
+
+    relay_chn_notify_msg_t msg = {
+        .cmd = RELAY_CHN_NOTIFY_CMD_BROADCAST,
+        .payload.event_data.chn_id = chn_id,
+        .payload.event_data.old_state = old_state,
+        .payload.event_data.new_state = new_state,
+    };
+
+    // Try to send, do not wait if the queue is full
+    if (xQueueSend(s_notify_queue, &msg, 0) != pdTRUE) {
+        ESP_LOGW(TAG, "Notify queue is full, dropping event: %d -> %d for #%d", old_state, new_state, chn_id);
+        return ESP_FAIL;
+    }
+    return ESP_OK;
+}
+
+static void do_notify(relay_chn_notify_event_data_t *event_data)
+{
+    // Iterate through the linked list of listeners and notify them.
+    // No mutex is needed as this is the only task accessing the list.
+    for (ListItem_t *pxListItem = listGET_HEAD_ENTRY(&s_listeners);
+         pxListItem != listGET_END_MARKER(&s_listeners);
+         pxListItem = listGET_NEXT(pxListItem)) {
+        relay_chn_listener_entry_t *entry = (relay_chn_listener_entry_t *) listGET_LIST_ITEM_OWNER(pxListItem);
+        if (entry && entry->listener) {
+            // Emit the state change to the listeners
+            entry->listener(event_data->chn_id, event_data->old_state, event_data->new_state);
+        }
+    }
+}
+
+// ---- Notify Task ----
+static void relay_chn_notify_task(void *arg)
+{
+    relay_chn_notify_msg_t msg;
+    for (;;) {
+        if (xQueueReceive(s_notify_queue, &msg, portMAX_DELAY) == pdTRUE) {
+            switch (msg.cmd) {
+                case RELAY_CHN_NOTIFY_CMD_BROADCAST: {
+                    do_notify(&msg.payload.event_data);
+                    break;
+                }
+                case RELAY_CHN_NOTIFY_CMD_ADD_LISTENER:
+                    do_add_listener(msg.payload.listener);
+                    break;
+                case RELAY_CHN_NOTIFY_CMD_REMOVE_LISTENER:
+                    do_remove_listener(msg.payload.listener);
+                    break;
+                default:
+                    ESP_LOGE(TAG, "Unknown command type in notify queue: %d", msg.cmd);
+                    break;
+            }
+        }
+    }
+}

src/relay_chn_nvs.c

@@ -4,30 +4,104 @@
  * SPDX-License-Identifier: MIT
  */
 
+#include "freertos/FreeRTOS.h"
+#include "freertos/semphr.h"
+#include "freertos/task.h"
+#include "freertos/queue.h"
 #include "esp_check.h"
+#include "esp_log.h"
+#include "nvs.h"
 #include "relay_chn_nvs.h"
 
 #define RELAY_CHN_KEY_DIR          "dir"    /*!< Direction key */
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
-#define RELAY_CHN_KEY_RLIM(ch)  "rlim_%d"   /*!< Run limit key */
+#if CONFIG_RELAY_CHN_COUNT > 1
+#define RELAY_CHN_KEY_RLIM_FMT  "rlim_%d"   /*!< Run limit key format for multi-channel */
+#else
+#define RELAY_CHN_KEY_RLIM      "rlim_0"    /*!< Run limit key for single-channel */
+#endif
 #endif
 #if CONFIG_RELAY_CHN_ENABLE_TILTING
-#define RELAY_CHN_KEY_TSENS(ch) "tsens_%d"  /*!< Tilt sensitivity key */
-#define RELAY_CHN_KEY_TCNT(ch)  "tcnt_%d"   /*!< Tilt count key */
+#if CONFIG_RELAY_CHN_COUNT > 1
+#define RELAY_CHN_KEY_TSENS_FMT "tsens_%d"  /*!< Tilt sensitivity key format for multi-channel */
+#define RELAY_CHN_KEY_TCNT_FMT  "tcnt_%d"   /*!< Tilt count key format for multi-channel */
+#else
+#define RELAY_CHN_KEY_TSENS     "tsens_0"   /*!< Tilt sensitivity key for single-channel */
+#define RELAY_CHN_KEY_TCNT      "tcnt_0"    /*!< Tilt count key for single-channel */
 #endif
+#endif
+
+// --- Task and message queue config ---
+#define RELAY_CHN_NVS_QUEUE_LEN  (8 + CONFIG_RELAY_CHN_COUNT * 8)
+#define RELAY_CHN_NVS_TASK_STACK 2048
+#define RELAY_CHN_NVS_COMMIT_TIMEOUT_MS 200
+#define RELAY_CHN_NVS_TASK_PRIO  (tskIDLE_PRIORITY + 4)
+
+typedef enum {
+    RELAY_CHN_NVS_OP_ERASE_ALL,
+    RELAY_CHN_NVS_OP_SET_DIRECTION,
+#if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
+    RELAY_CHN_NVS_OP_SET_RUN_LIMIT,
+#endif
+#if CONFIG_RELAY_CHN_ENABLE_TILTING
+    RELAY_CHN_NVS_OP_SET_TILT_SENSITIVITY,
+    RELAY_CHN_NVS_OP_SET_TILT_COUNT,
+#endif
+    RELAY_CHN_NVS_OP_DEINIT,
+} relay_chn_nvs_op_t;
+
+typedef struct {
+    relay_chn_nvs_op_t op;
+    uint8_t ch;
+    union {
+        uint16_t data_u16;
+        uint8_t data_u8;
+    } data;
+} relay_chn_nvs_msg_t;
 
 static const char *TAG = "RELAY_CHN_NVS";
 
-static nvs_handle_t relay_chn_nvs;
+static nvs_handle_t s_relay_chn_nvs;
+static QueueHandle_t s_nvs_ops_queue = NULL;
+static TaskHandle_t s_nvs_ops_task = NULL;
+static SemaphoreHandle_t s_nvs_deinit_sem = NULL;
+
+
+static void relay_chn_nvs_task(void *arg);
 
 esp_err_t relay_chn_nvs_init()
 {
+    // Already initialized?
+    if (s_nvs_ops_queue != NULL) {
+        return ESP_OK;
+    }
+
+    s_nvs_deinit_sem = xSemaphoreCreateBinary();
+    if (!s_nvs_deinit_sem) {
+        ESP_LOGE(TAG, "Failed to create deinit semaphore");
+        return ESP_ERR_NO_MEM;
+    }
+
+    s_nvs_ops_queue = xQueueCreate(RELAY_CHN_NVS_QUEUE_LEN, sizeof(relay_chn_nvs_msg_t));
+    if (!s_nvs_ops_queue) {
+        ESP_LOGE(TAG, "Failed to create NVS queue");
+        return ESP_ERR_NO_MEM;
+    }
+
+    BaseType_t res = xTaskCreate(relay_chn_nvs_task, "task_rlch_nvs",
+                                 RELAY_CHN_NVS_TASK_STACK, NULL,
+                                 RELAY_CHN_NVS_TASK_PRIO, &s_nvs_ops_task);
+    if (res != pdPASS) {
+        ESP_LOGE(TAG, "Failed to create NVS task");
+        return ESP_ERR_NO_MEM;
+    }
+
     esp_err_t ret;
 #if CONFIG_RELAY_CHN_NVS_CUSTOM_PARTITION
     ret = nvs_open_from_partition(CONFIG_RELAY_CHN_NVS_CUSTOM_PARTITION_NAME,
                                   CONFIG_RELAY_CHN_NVS_NAMESPACE,
                                   NVS_READWRITE,
-                                  &relay_chn_nvs);
+                                  &s_relay_chn_nvs);
 
     ESP_RETURN_ON_ERROR(ret,
                         TAG,
@@ -36,38 +110,71 @@ esp_err_t relay_chn_nvs_init()
                         CONFIG_RELAY_CHN_NVS_CUSTOM_PARTITION_NAME,
                         esp_err_to_name(ret));
 #else
-    ret = nvs_open(CONFIG_RELAY_CHN_NVS_NAMESPACE, NVS_READWRITE, &relay_chn_nvs);
+    ret = nvs_open(CONFIG_RELAY_CHN_NVS_NAMESPACE, NVS_READWRITE, &s_relay_chn_nvs);
     ESP_RETURN_ON_ERROR(ret, TAG, "Failed to open NVS namespace '%s'", CONFIG_RELAY_CHN_NVS_NAMESPACE);
 #endif // CONFIG_RELAY_CHN_NVS_CUSTOM_PARTITION
     return ESP_OK;
 }
 
+static esp_err_t relay_chn_nvs_enqueue(relay_chn_nvs_msg_t *msg, const char *op_name)
+{
+    if (!s_nvs_ops_queue) {
+        return ESP_ERR_INVALID_STATE;
+    }
+
+    if (msg->op == RELAY_CHN_NVS_OP_DEINIT || msg->op == RELAY_CHN_NVS_OP_ERASE_ALL) {
+        // Send DEINIT or ERASE_ALL to the front and wait up to 1 sec if needed
+        if (xQueueSendToFront(s_nvs_ops_queue, msg, pdMS_TO_TICKS(1000)) != pdTRUE) {
+            ESP_LOGW(TAG, "NVS queue is full, dropping %s for #%d", op_name, msg->ch);
+            return ESP_FAIL;
+        }
+    } else {
+        // Send async
+        if (xQueueSend(s_nvs_ops_queue, msg, 0) != pdTRUE) {
+            ESP_LOGW(TAG, "NVS queue is full, dropping %s for #%d", op_name, msg->ch);
+            return ESP_FAIL;
+        }
+    }
+    return ESP_OK;
+}
+
 esp_err_t relay_chn_nvs_set_direction(uint8_t ch, relay_chn_direction_t direction)
 {
-    uint8_t direction_val;
-    esp_err_t ret = nvs_get_u8(relay_chn_nvs, RELAY_CHN_KEY_DIR, &direction_val);
-    if (ret == ESP_ERR_NVS_NOT_FOUND) {
-        // The key does not exist yet, set it to zero which is the default direction
-        direction_val = RELAY_CHN_DIRECTION_DEFAULT;
-    } else if (ret != ESP_OK) {
+    relay_chn_nvs_msg_t msg = {
+        .op = RELAY_CHN_NVS_OP_SET_DIRECTION,
+        .ch = ch,
+        .data.data_u8 = (uint8_t) direction,
+    };
+    return relay_chn_nvs_enqueue(&msg, "SET_DIRECTION");
+}
+
+static esp_err_t relay_chn_nvs_task_set_direction(uint8_t ch, uint8_t direction)
+{
+    uint8_t direction_val = 0;
+    esp_err_t ret = nvs_get_u8(s_relay_chn_nvs, RELAY_CHN_KEY_DIR, &direction_val);
+    if (ret != ESP_OK && ret != ESP_ERR_NVS_NOT_FOUND) {
         ESP_RETURN_ON_ERROR(ret, TAG, "Failed to get direction from NVS with error: %s", esp_err_to_name(ret));
     }
     direction_val &= ~(1 << ch); // Clear the bit for the channel
     direction_val |= (((uint8_t) direction) << ch); // Set the new direction bit
-    ret = nvs_set_u8(relay_chn_nvs, RELAY_CHN_KEY_DIR, direction_val);
+    ret = nvs_set_u8(s_relay_chn_nvs, RELAY_CHN_KEY_DIR, direction_val);
     ESP_RETURN_ON_ERROR(ret, TAG, "Failed to set direction for channel %d", ch);
-    return nvs_commit(relay_chn_nvs);
+    return ESP_OK;
 }
 
-esp_err_t relay_chn_nvs_get_direction(uint8_t ch, relay_chn_direction_t *direction)
+esp_err_t relay_chn_nvs_get_direction(uint8_t ch, relay_chn_direction_t *direction, relay_chn_direction_t default_val)
 {
     ESP_RETURN_ON_FALSE(direction != NULL, ESP_ERR_INVALID_ARG, TAG, "Direction pointer is NULL");
 
     uint8_t direction_val;
-    esp_err_t ret = nvs_get_u8(relay_chn_nvs, RELAY_CHN_KEY_DIR, &direction_val);
-    if (ret != ESP_OK) {
-        return ret; // Return error if the key does not exist
+    esp_err_t ret = nvs_get_u8(s_relay_chn_nvs, RELAY_CHN_KEY_DIR, &direction_val);
+    if (ret == ESP_ERR_NVS_NOT_FOUND) {
+        *direction = default_val;
+        return ESP_OK;
+    } else if (ret != ESP_OK) {
+        return ret; // A real error occurred, return it
     }
+    // If ret is ESP_OK, direction_val has the stored value.
     *direction = (relay_chn_direction_t)((direction_val >> ch) & 0x01);
     return ESP_OK;
 }
@@ -75,62 +182,271 @@ esp_err_t relay_chn_nvs_get_direction(uint8_t ch, relay_chn_direction_t *directi
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
 esp_err_t relay_chn_nvs_set_run_limit(uint8_t ch, uint16_t limit_sec)
 {
-    esp_err_t ret = nvs_set_u16(relay_chn_nvs, RELAY_CHN_KEY_RLIM(ch), limit_sec);
-    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to set run limit for channel %d", ch);
-    return nvs_commit(relay_chn_nvs);
+    relay_chn_nvs_msg_t msg = {
+        .op = RELAY_CHN_NVS_OP_SET_RUN_LIMIT,
+        .ch = ch,
+        .data.data_u16 = limit_sec,
+    };
+    return relay_chn_nvs_enqueue(&msg, "SET_RUN_LIMIT");
 }
 
-esp_err_t relay_chn_nvs_get_run_limit(uint8_t ch, uint16_t *limit_sec)
+static esp_err_t relay_chn_nvs_task_set_run_limit(uint8_t ch, uint16_t limit_sec)
+{
+    esp_err_t ret;
+#if CONFIG_RELAY_CHN_COUNT > 1
+    char key[NVS_KEY_NAME_MAX_SIZE];
+    snprintf(key, sizeof(key), RELAY_CHN_KEY_RLIM_FMT, ch);
+    ret = nvs_set_u16(s_relay_chn_nvs, key, limit_sec);
+#else
+    ret = nvs_set_u16(s_relay_chn_nvs, RELAY_CHN_KEY_RLIM, limit_sec);
+#endif
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to set run limit for channel %d", ch);
+    return ESP_OK;
+}
+
+esp_err_t relay_chn_nvs_get_run_limit(uint8_t ch, uint16_t *limit_sec, uint16_t default_val)
 {
     ESP_RETURN_ON_FALSE(limit_sec != NULL, ESP_ERR_INVALID_ARG, TAG, "Run limit value pointer is NULL");
 
-    return nvs_get_u16(relay_chn_nvs, RELAY_CHN_KEY_RLIM(ch), limit_sec);
+    esp_err_t ret;
+#if CONFIG_RELAY_CHN_COUNT > 1
+    char key[NVS_KEY_NAME_MAX_SIZE];
+    snprintf(key, sizeof(key), RELAY_CHN_KEY_RLIM_FMT, ch);
+    ret = nvs_get_u16(s_relay_chn_nvs, key, limit_sec);
+#else
+    ret = nvs_get_u16(s_relay_chn_nvs, RELAY_CHN_KEY_RLIM, limit_sec);
+#endif
+    if (ret == ESP_ERR_NVS_NOT_FOUND) {
+        *limit_sec = default_val;
+        return ESP_OK;
+    }
+    return ret;
 }
 #endif // CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT == 1
 
 #if CONFIG_RELAY_CHN_ENABLE_TILTING
 esp_err_t relay_chn_nvs_set_tilt_sensitivity(uint8_t ch, uint8_t sensitivity)
 {
-    esp_err_t ret = nvs_set_u8(relay_chn_nvs, RELAY_CHN_KEY_TSENS(ch), sensitivity);
-    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to set tilt sensitivity for channel %d", ch);
-    return nvs_commit(relay_chn_nvs);
+    relay_chn_nvs_msg_t msg = {
+        .op = RELAY_CHN_NVS_OP_SET_TILT_SENSITIVITY,
+        .ch = ch,
+        .data.data_u8 = sensitivity,
+    };
+    return relay_chn_nvs_enqueue(&msg, "SET_TILT_SENSITIVITY");
 }
 
-esp_err_t relay_chn_nvs_get_tilt_sensitivity(uint8_t ch, uint8_t *sensitivity)
+static esp_err_t relay_chn_nvs_task_set_tilt_sensitivity(uint8_t ch, uint8_t sensitivity)
+{
+    esp_err_t ret;
+#if CONFIG_RELAY_CHN_COUNT > 1
+    char key[NVS_KEY_NAME_MAX_SIZE];
+    snprintf(key, sizeof(key), RELAY_CHN_KEY_TSENS_FMT, ch);
+    ret = nvs_set_u8(s_relay_chn_nvs, key, sensitivity);
+#else
+    ret = nvs_set_u8(s_relay_chn_nvs, RELAY_CHN_KEY_TSENS, sensitivity);
+#endif
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to set tilt sensitivity for channel %d", ch);
+    return ESP_OK;
+}
+
+esp_err_t relay_chn_nvs_get_tilt_sensitivity(uint8_t ch, uint8_t *sensitivity, uint8_t default_val)
 {
     ESP_RETURN_ON_FALSE(sensitivity != NULL, ESP_ERR_INVALID_ARG, TAG, "Sensitivity pointer is NULL");
 
-    return nvs_get_u8(relay_chn_nvs, RELAY_CHN_KEY_TSENS(ch), sensitivity);
+    esp_err_t ret;
+#if CONFIG_RELAY_CHN_COUNT > 1
+    char key[NVS_KEY_NAME_MAX_SIZE];
+    snprintf(key, sizeof(key), RELAY_CHN_KEY_TSENS_FMT, ch);
+    ret = nvs_get_u8(s_relay_chn_nvs, key, sensitivity);
+#else
+    ret = nvs_get_u8(s_relay_chn_nvs, RELAY_CHN_KEY_TSENS, sensitivity);
+#endif
+    if (ret == ESP_ERR_NVS_NOT_FOUND) {
+        *sensitivity = default_val;
+        return ESP_OK;
+    }
+    return ret;
 }
 
 esp_err_t relay_chn_nvs_set_tilt_count(uint8_t ch, uint16_t tilt_count)
 {
-    esp_err_t ret;
-    ret = nvs_set_u16(relay_chn_nvs, RELAY_CHN_KEY_TCNT(ch), tilt_count);
-    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to save tilt_count tilt counter");
-    return nvs_commit(relay_chn_nvs);
+    relay_chn_nvs_msg_t msg = {
+        .op = RELAY_CHN_NVS_OP_SET_TILT_COUNT,
+        .ch = ch,
+        .data.data_u16 = tilt_count,
+    };
+    return relay_chn_nvs_enqueue(&msg, "SET_TILT_COUNT");
 }
 
-esp_err_t relay_chn_nvs_get_tilt_count(uint8_t ch, uint16_t *tilt_count)
+static esp_err_t relay_chn_nvs_task_set_tilt_count(uint8_t ch, uint16_t tilt_count)
 {
-    ESP_RETURN_ON_FALSE(tilt_count != NULL,
-                        ESP_ERR_INVALID_ARG, TAG, "Counter pointers are NULL");
-    return nvs_get_u16(relay_chn_nvs, RELAY_CHN_KEY_TCNT(ch), tilt_count);
+    esp_err_t ret;
+#if CONFIG_RELAY_CHN_COUNT > 1
+    char key[NVS_KEY_NAME_MAX_SIZE];
+    snprintf(key, sizeof(key), RELAY_CHN_KEY_TCNT_FMT, ch);
+    ret = nvs_set_u16(s_relay_chn_nvs, key, tilt_count);
+#else
+    ret = nvs_set_u16(s_relay_chn_nvs, RELAY_CHN_KEY_TCNT, tilt_count);
+#endif
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to save tilt_count tilt counter");
+    return ESP_OK;
+}
+
+esp_err_t relay_chn_nvs_get_tilt_count(uint8_t ch, uint16_t *tilt_count, uint16_t default_val)
+{
+    ESP_RETURN_ON_FALSE(tilt_count != NULL, ESP_ERR_INVALID_ARG, TAG, "Counter pointers are NULL");
+
+    esp_err_t ret;
+#if CONFIG_RELAY_CHN_COUNT > 1
+    char key[NVS_KEY_NAME_MAX_SIZE];
+    snprintf(key, sizeof(key), RELAY_CHN_KEY_TCNT_FMT, ch);
+    ret = nvs_get_u16(s_relay_chn_nvs, key, tilt_count);
+#else
+    ret = nvs_get_u16(s_relay_chn_nvs, RELAY_CHN_KEY_TCNT, tilt_count);
+#endif
+    if (ret == ESP_ERR_NVS_NOT_FOUND) {
+        *tilt_count = default_val;
+        return ESP_OK;
+    }
+    return ret;
 }
 #endif // CONFIG_RELAY_CHN_ENABLE_TILTING
 
 esp_err_t relay_chn_nvs_erase_all()
 {
-    // Erase all key-value pairs in the relay_chn NVS namespace
-    esp_err_t ret = nvs_erase_all(relay_chn_nvs);
-    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to erase all keys in NVS namespace '%s'", CONFIG_RELAY_CHN_NVS_NAMESPACE);
-    
-    // Commit the changes
-    return nvs_commit(relay_chn_nvs);
+    relay_chn_nvs_msg_t msg = {
+        .op = RELAY_CHN_NVS_OP_ERASE_ALL,
+    };
+    return relay_chn_nvs_enqueue(&msg, "ERASE_ALL");
 }
 
-esp_err_t relay_chn_nvs_deinit()
+static esp_err_t do_nvs_deinit()
 {
-    nvs_close(relay_chn_nvs);
+    relay_chn_nvs_msg_t msg = {
+        .op = RELAY_CHN_NVS_OP_DEINIT,
+    };
+    return relay_chn_nvs_enqueue(&msg, "DEINIT");
+}
+
+static esp_err_t do_nvs_erase_all()
+{
+    // Flush all pending SET operations since ERASE_ALL requested
+    xQueueReset(s_nvs_ops_queue);
+    // Erase all key-value pairs in the relay_chn NVS namespace
+    esp_err_t ret = nvs_erase_all(s_relay_chn_nvs);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to erase all keys in NVS namespace '%s'", CONFIG_RELAY_CHN_NVS_NAMESPACE);
     return ESP_OK;
 }
+
+void relay_chn_nvs_deinit()
+{
+    if (s_nvs_ops_task) {
+        if (do_nvs_deinit() == ESP_OK) {
+            if (s_nvs_deinit_sem && xSemaphoreTake(s_nvs_deinit_sem, pdMS_TO_TICKS(2000)) != pdTRUE) {
+                ESP_LOGE(TAG, "Failed to get deinit confirmation from NVS task. Forcing deletion.");
+                vTaskDelete(s_nvs_ops_task); // Last resort
+            }
+        } else {
+            ESP_LOGE(TAG, "Failed to send deinit message to NVS task. Forcing deletion.");
+            vTaskDelete(s_nvs_ops_task);
+        }
+    }
+    if (s_nvs_ops_queue) {
+        vQueueDelete(s_nvs_ops_queue);
+        s_nvs_ops_queue = NULL;
+    }
+    if (s_nvs_deinit_sem) {
+        vSemaphoreDelete(s_nvs_deinit_sem);
+        s_nvs_deinit_sem = NULL;
+    }
+
+    // Close NVS handle here, after task has stopped and queue is deleted.
+    nvs_close(s_relay_chn_nvs);
+    s_nvs_ops_task = NULL;
+}
+
+static esp_err_t relay_chn_nvs_task_process_message(const relay_chn_nvs_msg_t *msg, bool *running, bool *dirty)
+{
+    esp_err_t ret = ESP_OK;
+    switch (msg->op) {
+        case RELAY_CHN_NVS_OP_SET_DIRECTION:
+            ret = relay_chn_nvs_task_set_direction(msg->ch, msg->data.data_u8);
+            if (ret == ESP_OK) *dirty = true;
+            break;
+#if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
+        case RELAY_CHN_NVS_OP_SET_RUN_LIMIT:
+            ret = relay_chn_nvs_task_set_run_limit(msg->ch, msg->data.data_u16);
+            if (ret == ESP_OK) *dirty = true;
+            break;
+#endif
+#if CONFIG_RELAY_CHN_ENABLE_TILTING
+        case RELAY_CHN_NVS_OP_SET_TILT_SENSITIVITY:
+            ret = relay_chn_nvs_task_set_tilt_sensitivity(msg->ch, msg->data.data_u8);
+            if (ret == ESP_OK) *dirty = true;
+            break;
+        case RELAY_CHN_NVS_OP_SET_TILT_COUNT:
+            ret = relay_chn_nvs_task_set_tilt_count(msg->ch, msg->data.data_u16);
+            if (ret == ESP_OK) *dirty = true;
+            break;
+#endif
+        case RELAY_CHN_NVS_OP_ERASE_ALL:
+            ret = do_nvs_erase_all();
+            if (ret == ESP_OK) *dirty = true;
+            break;
+        case RELAY_CHN_NVS_OP_DEINIT:
+            *running = false;
+            break;
+        default:
+            ESP_LOGE(TAG, "Unknown operation in NVS queue: %d", msg->op);
+            ret = ESP_ERR_INVALID_ARG;
+            break;
+    }
+    return ret;
+}
+
+/*
+ * The ESP-IDF NVS functions are protected by an internal mutex. If this task is killed
+ * while it's holding that mutex, the mutex is never released, which may result in
+ * deadlocks. This is why this task must be terminated gracefully.
+ */
+static void relay_chn_nvs_task(void *arg)
+{
+    relay_chn_nvs_msg_t msg;
+    bool dirty = false;
+    bool running = true;
+
+    while (running) {
+        // Block indefinitely waiting for the first message of a potential batch.
+        if (xQueueReceive(s_nvs_ops_queue, &msg, portMAX_DELAY) == pdTRUE) {
+            // A batch of operations has started. Use a do-while to process the first message
+            // and any subsequent messages that arrive within the timeout.
+            do {
+                esp_err_t ret = relay_chn_nvs_task_process_message(&msg, &running, &dirty);
+                if (ret != ESP_OK) {
+                    ESP_LOGE(TAG, "Failed to process operation %d for #%d with error %s", msg.op, msg.ch, esp_err_to_name(ret));
+                }
+            } while (running && xQueueReceive(s_nvs_ops_queue, &msg, pdMS_TO_TICKS(RELAY_CHN_NVS_COMMIT_TIMEOUT_MS)) == pdTRUE);
+
+            // The burst of messages is over (timeout occurred). Commit if anything changed.
+            if (dirty) {
+                esp_err_t commit_ret = nvs_commit(s_relay_chn_nvs);
+                if (commit_ret == ESP_OK) {
+                    dirty = false;
+                } else {
+                    ESP_LOGE(TAG, "NVS batch commit failed");
+                    // Don't reset dirty flag, so we can try to commit again later.
+                }
+            }
+        }
+    }
+
+    // Before exiting, do one final commit if there are pending changes.
+    if (dirty) {
+        if (nvs_commit(s_relay_chn_nvs) != ESP_OK) {
+            ESP_LOGE(TAG, "Final NVS commit failed on deinit");
+        }
+    }
+    xSemaphoreGive(s_nvs_deinit_sem);
+    s_nvs_ops_task = NULL;
+    vTaskDelete(NULL);
+}

src/relay_chn_output.c

@@ -17,9 +17,9 @@
 static const char *TAG = "RELAY_CHN_OUTPUT";
 
 #if CONFIG_RELAY_CHN_COUNT > 1
-static relay_chn_output_t outputs[CONFIG_RELAY_CHN_COUNT];
+static relay_chn_output_t s_outputs[CONFIG_RELAY_CHN_COUNT];
 #else
-static relay_chn_output_t output;
+static relay_chn_output_t s_output;
 #endif
 
 
@@ -50,7 +50,7 @@ static esp_err_t relay_chn_output_ctl_init(relay_chn_output_t *output,
                         "Invalid GPIO pin number for forward_pin: %d", forward_pin);
     ESP_RETURN_ON_FALSE(GPIO_IS_VALID_OUTPUT_GPIO(reverse_pin), ESP_ERR_INVALID_ARG, TAG,
                         "Invalid GPIO pin number for reverse_pin: %d", reverse_pin);
-    
+
     // Check if the GPIOs are valid
     esp_err_t ret;
     // Initialize the GPIOs
@@ -58,7 +58,7 @@ static esp_err_t relay_chn_output_ctl_init(relay_chn_output_t *output,
     ESP_RETURN_ON_ERROR(ret, TAG, "Failed to reset GPIO forward pin: %d", forward_pin);
     ret = gpio_set_direction(forward_pin, GPIO_MODE_OUTPUT);
     ESP_RETURN_ON_ERROR(ret, TAG, "Failed to set GPIO direction for forward pin: %d", forward_pin);
-    
+
     ret = gpio_reset_pin(reverse_pin);
     ESP_RETURN_ON_ERROR(ret, TAG, "Failed to reset GPIO reverse pin: %d", reverse_pin);
     ret = gpio_set_direction(reverse_pin, GPIO_MODE_OUTPUT);
@@ -75,13 +75,9 @@ static esp_err_t relay_chn_output_ctl_init(relay_chn_output_t *output,
 #if CONFIG_RELAY_CHN_ENABLE_NVS
 static esp_err_t relay_chn_output_load_direction(uint8_t ch, relay_chn_direction_t *direction)
 {
-    esp_err_t ret = relay_chn_nvs_get_direction(ch, direction);
-    if (ret == ESP_ERR_NVS_NOT_FOUND) {
-        // If the key does not exist, use the default direction
-        *direction = RELAY_CHN_DIRECTION_DEFAULT;
-    } else if (ret != ESP_OK) {
-        ESP_RETURN_ON_ERROR(ret, TAG, "Failed to get direction from storage for channel %d: %s", ch, esp_err_to_name(ret));
-    }
+    // relay_chn_nvs_get_direction handles the NOT_FOUND case and returns the provided default value.
+    esp_err_t ret = relay_chn_nvs_get_direction(ch, direction, RELAY_CHN_DIRECTION_DEFAULT);
+    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to get direction from storage for channel %d: %s", ch, esp_err_to_name(ret));
     return ESP_OK;
 }
 #endif
@@ -91,10 +87,10 @@ esp_err_t relay_chn_output_init(const uint8_t* gpio_map, uint8_t gpio_count)
     esp_err_t ret;
     ret = relay_chn_output_check_gpio_capabilities(gpio_count);
     ESP_RETURN_ON_ERROR(ret, TAG, "Device does not support the provided GPIOs");
-    
+
 #if CONFIG_RELAY_CHN_COUNT > 1
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        relay_chn_output_t* output = &outputs[i];
+        relay_chn_output_t* output = &s_outputs[i];
         int gpio_index = i << 1; // gpio_index = i * 2
         gpio_num_t forward_pin = (gpio_num_t) gpio_map[gpio_index];
         gpio_num_t reverse_pin = (gpio_num_t) gpio_map[gpio_index + 1];
@@ -115,7 +111,7 @@ esp_err_t relay_chn_output_init(const uint8_t* gpio_map, uint8_t gpio_count)
     ret = relay_chn_output_load_direction(0, &direction);
     ESP_RETURN_ON_ERROR(ret, TAG, "Failed to load direction from storage for channel %d", 0);
 #endif
-    ret = relay_chn_output_ctl_init(&output, gpio_map[0], gpio_map[1], direction);
+    ret = relay_chn_output_ctl_init(&s_output, gpio_map[0], gpio_map[1], direction);
     ESP_RETURN_ON_ERROR(ret, TAG, "Failed to initialize relay channel");
 #endif
     return ESP_OK;
@@ -131,10 +127,10 @@ void relay_chn_output_deinit()
 {
 #if CONFIG_RELAY_CHN_COUNT > 1
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        relay_chn_output_ctl_deinit(&outputs[i]);
+        relay_chn_output_ctl_deinit(&s_outputs[i]);
     }
 #else
-    relay_chn_output_ctl_deinit(&output);
+    relay_chn_output_ctl_deinit(&s_output);
 #endif // CONFIG_RELAY_CHN_COUNT > 1
 }
 
@@ -144,17 +140,17 @@ relay_chn_output_t *relay_chn_output_get(uint8_t chn_id)
     if (!relay_chn_is_channel_id_valid(chn_id)) {
         return NULL;
     }
-    return &outputs[chn_id];
+    return &s_outputs[chn_id];
 }
 
 relay_chn_output_t *relay_chn_output_get_all(void)
 {
-    return outputs;
+    return s_outputs;
 }
 #else
 relay_chn_output_t *relay_chn_output_get(void)
 {
-    return &output;
+    return &s_output;
 }
 #endif // CONFIG_RELAY_CHN_COUNT > 1
 
@@ -189,15 +185,15 @@ void relay_chn_output_flip(relay_chn_output_t *output)
     output->forward_pin = output->reverse_pin;
     output->reverse_pin = temp;
     // Flip the direction
-    output->direction = (output->direction == RELAY_CHN_DIRECTION_DEFAULT) 
-                        ? RELAY_CHN_DIRECTION_FLIPPED 
+    output->direction = (output->direction == RELAY_CHN_DIRECTION_DEFAULT)
+                        ? RELAY_CHN_DIRECTION_FLIPPED
                         : RELAY_CHN_DIRECTION_DEFAULT;
 
 #if CONFIG_RELAY_CHN_ENABLE_NVS
     uint8_t ch = 0;
 #if CONFIG_RELAY_CHN_COUNT > 1
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        if (output == &outputs[i]) {
+        if (output == &s_outputs[i]) {
             ch = i;
             break;
         }

src/relay_chn_run_info.c

@@ -9,21 +9,21 @@
 
 
 #if CONFIG_RELAY_CHN_COUNT > 1
-static relay_chn_run_info_t run_infos[CONFIG_RELAY_CHN_COUNT];
+static relay_chn_run_info_t s_run_infos[CONFIG_RELAY_CHN_COUNT];
 #else
-static relay_chn_run_info_t run_info;
+static relay_chn_run_info_t s_run_info;
 #endif
 
 void relay_chn_run_info_init()
 {
 #if CONFIG_RELAY_CHN_COUNT > 1
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        run_infos[i].last_run_cmd = RELAY_CHN_CMD_NONE;
-        run_infos[i].last_run_cmd_time_ms = 0;
+        s_run_infos[i].last_run_cmd = RELAY_CHN_CMD_NONE;
+        s_run_infos[i].last_run_cmd_time_ms = 0;
     }
 #else
-    run_info.last_run_cmd = RELAY_CHN_CMD_NONE;
-    run_info.last_run_cmd_time_ms = 0;
+    s_run_info.last_run_cmd = RELAY_CHN_CMD_NONE;
+    s_run_info.last_run_cmd_time_ms = 0;
 #endif
 }
 
@@ -33,17 +33,17 @@ relay_chn_run_info_t *relay_chn_run_info_get(uint8_t chn_id)
     if (!relay_chn_is_channel_id_valid(chn_id)) {
         return NULL;
     }
-    return &run_infos[chn_id];
+    return &s_run_infos[chn_id];
 }
 
 relay_chn_run_info_t *relay_chn_run_info_get_all()
 {
-    return run_infos;
+    return s_run_infos;
 }
 #else
 relay_chn_run_info_t *relay_chn_run_info_get()
 {
-    return &run_info;
+    return &s_run_info;
 }
 #endif // CONFIG_RELAY_CHN_COUNT > 1
 

src/relay_chn_tilt.c

@@ -5,6 +5,7 @@
  */
 
 #include "esp_check.h"
+#include "relay_chn.h"
 #include "relay_chn_core.h"
 #include "relay_chn_output.h"
 #include "relay_chn_run_info.h"
@@ -22,7 +23,7 @@ static const char *TAG = "RELAY_CHN_TILT";
 /**@{*/
 /*
  * Tilt Pattern Timing Definitions
- * 
+ *
  * The min and max timing definitions as well as the default timing definitions.
  * These definitions are used to define and adjust the tilt sensitivity.
  */
@@ -71,9 +72,9 @@ typedef struct relay_chn_tilt_ctl {
 
 
 #if CONFIG_RELAY_CHN_COUNT > 1
-static relay_chn_tilt_ctl_t tilt_ctls[CONFIG_RELAY_CHN_COUNT];
+static relay_chn_tilt_ctl_t s_tilt_ctls[CONFIG_RELAY_CHN_COUNT];
 #else
-static relay_chn_tilt_ctl_t tilt_ctl;
+static relay_chn_tilt_ctl_t s_tilt_ctl;
 #endif
 
 
@@ -85,7 +86,7 @@ static uint32_t relay_chn_tilt_get_required_timing_before_tilting(relay_chn_tilt
         return 0;
     else if (cmd == RELAY_CHN_TILT_CMD_REVERSE && last_run_cmd == RELAY_CHN_CMD_FORWARD)
         return 0;
-    
+
     uint32_t last_run_cmd_time_ms = relay_chn_run_info_get_last_run_cmd_time_ms(tilt_ctl->chn_ctl->run_info);
     uint32_t inertia_time_passed_ms = (uint32_t) (esp_timer_get_time() / 1000) - last_run_cmd_time_ms;
     return CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS - inertia_time_passed_ms;
@@ -103,30 +104,66 @@ static void relay_chn_tilt_start_timer_or_stop(relay_chn_tilt_ctl_t *tilt_ctl, e
     }
 }
 
+/**
+ * @brief Checks if the relay channel can perform the current tilt command.
+ *
+ * This function evaluates whether a tilt command can be executed based on the
+ * channel's history. The rules are as follows:
+ * - Tilting in the same direction as the last full run command (e.g., TILT_FORWARD
+ *   after a FORWARD run) is always allowed.
+ * - Tilting in the opposite direction of the last full run (e.g., TILT_REVERSE
+ *   after a FORWARD run) is only allowed if the tilt counter is greater than zero,
+ *   which indicates that the channel has previously tilted in the primary direction.
+ * - If the channel has not been run before, tilting is not allowed.
+ *
+ * @param tilt_ctl Pointer to the tilt control structure for the channel.
+ * @param tilt_cmd The tilt command to check against.
+ * 
+ * @return true if the tilt command is allowed, false otherwise.
+ */
+static bool relay_chn_can_perform_tilt_cmd(relay_chn_tilt_ctl_t *tilt_ctl, relay_chn_tilt_cmd_t tilt_cmd)
+{
+    relay_chn_cmd_t last_run_cmd = relay_chn_run_info_get_last_run_cmd(tilt_ctl->chn_ctl->run_info);
+    if (last_run_cmd == RELAY_CHN_CMD_FORWARD) {
+        return (tilt_cmd == RELAY_CHN_TILT_CMD_FORWARD) ||
+               (tilt_cmd == RELAY_CHN_TILT_CMD_REVERSE && tilt_ctl->tilt_count > 0);
+    } else if (last_run_cmd == RELAY_CHN_CMD_REVERSE) {
+        return (tilt_cmd == RELAY_CHN_TILT_CMD_REVERSE) ||
+               (tilt_cmd == RELAY_CHN_TILT_CMD_FORWARD && tilt_ctl->tilt_count > 0);
+    }
+
+    return false;
+}
+
 // Issue a tilt command to a specific relay channel.
 static void relay_chn_tilt_issue_cmd(relay_chn_tilt_ctl_t *tilt_ctl, relay_chn_tilt_cmd_t cmd)
 {
     // TILT_STOP is safe and high priority
     if (cmd == RELAY_CHN_TILT_CMD_STOP) {
-        if (tilt_ctl->chn_ctl->state == RELAY_CHN_STATE_STOPPED) {
-            return; // Do nothing if already stopped
+        relay_chn_state_t state = tilt_ctl->chn_ctl->state;
+        if (state == RELAY_CHN_STATE_TILT_FORWARD || state == RELAY_CHN_STATE_TILT_REVERSE) {
+            // If the command is TILT_STOP, issue it immediately
+            relay_chn_tilt_dispatch_cmd(tilt_ctl, cmd);
         }
-        // If the command is TILT_STOP, issue it immediately
-        relay_chn_tilt_dispatch_cmd(tilt_ctl, cmd);
         return;
     }
-    
+
     if (relay_chn_run_info_get_last_run_cmd(tilt_ctl->chn_ctl->run_info) == RELAY_CHN_CMD_NONE) {
         // Do not tilt if the channel hasn't been run before
         ESP_LOGD(TAG, "relay_chn_tilt_issue_cmd: Tilt will not be executed since the channel hasn't been run yet");
         return;
     }
-    
+
     if (tilt_ctl->cmd == cmd) {
         ESP_LOGD(TAG, "relay_chn_tilt_issue_cmd: There is already a tilt command in progress!");
         return;
     }
 
+    if (!relay_chn_can_perform_tilt_cmd(tilt_ctl, cmd)) {
+        ESP_LOGD(TAG, "Cannot perform tilt command: %d for #%d", cmd, tilt_ctl->chn_ctl->id);
+        return;
+    }
+
     // Set the command that will be processed
     tilt_ctl->cmd = cmd;
     switch (tilt_ctl->chn_ctl->state) {
@@ -134,7 +171,7 @@ static void relay_chn_tilt_issue_cmd(relay_chn_tilt_ctl_t *tilt_ctl, relay_chn_t
             // Relay channel is free, tilt can be issued immediately
             relay_chn_tilt_dispatch_cmd(tilt_ctl, cmd);
             break;
-        
+
         case RELAY_CHN_STATE_FORWARD_PENDING:
         case RELAY_CHN_STATE_REVERSE_PENDING:
             // Issue a stop command first so that the timer and pending cmd get cleared
@@ -184,7 +221,7 @@ static void relay_chn_tilt_issue_cmd(relay_chn_tilt_ctl_t *tilt_ctl, relay_chn_t
             break;
 
         default:
-            ESP_LOGD(TAG, "relay_chn_tilt_issue_cmd: Unexpected relay channel state: %s!", relay_chn_state_str(tilt_ctl->chn_ctl->state));
+            ESP_LOGD(TAG, "relay_chn_tilt_issue_cmd: Unexpected relay channel state: %s!", relay_chn_state_to_str(tilt_ctl->chn_ctl->state));
     }
 }
 
@@ -199,12 +236,17 @@ static void relay_chn_tilt_issue_auto(relay_chn_tilt_ctl_t *tilt_ctl)
     }
 }
 
+uint8_t relay_chn_tilt_get_default_sensitivity()
+{
+    return RELAY_CHN_TILT_DEFAULT_SENSITIVITY;
+}
+
 
 #if CONFIG_RELAY_CHN_COUNT > 1
 static void relay_chn_tilt_issue_cmd_on_all_channels(relay_chn_tilt_cmd_t cmd)
 {
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        relay_chn_tilt_ctl_t* tilt_ctl = &tilt_ctls[i];
+        relay_chn_tilt_ctl_t* tilt_ctl = &s_tilt_ctls[i];
         relay_chn_tilt_issue_cmd(tilt_ctl, cmd);
     }
 }
@@ -212,21 +254,21 @@ static void relay_chn_tilt_issue_cmd_on_all_channels(relay_chn_tilt_cmd_t cmd)
 void relay_chn_tilt_auto(uint8_t chn_id)
 {
     if (relay_chn_is_channel_id_valid(chn_id)) {
-        relay_chn_tilt_issue_auto(&tilt_ctls[chn_id]);
+        relay_chn_tilt_issue_auto(&s_tilt_ctls[chn_id]);
     }
 }
 
 void relay_chn_tilt_auto_all()
 {
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        relay_chn_tilt_issue_auto(&tilt_ctls[i]);
+        relay_chn_tilt_issue_auto(&s_tilt_ctls[i]);
     }
 }
 
 void relay_chn_tilt_forward(uint8_t chn_id)
 {
     if (relay_chn_is_channel_id_valid(chn_id)) {
-        relay_chn_tilt_issue_cmd(&tilt_ctls[chn_id], RELAY_CHN_TILT_CMD_FORWARD);
+        relay_chn_tilt_issue_cmd(&s_tilt_ctls[chn_id], RELAY_CHN_TILT_CMD_FORWARD);
     }
 }
 
@@ -238,7 +280,7 @@ void relay_chn_tilt_forward_all()
 void relay_chn_tilt_reverse(uint8_t chn_id)
 {
     if (relay_chn_is_channel_id_valid(chn_id)) {
-        relay_chn_tilt_issue_cmd(&tilt_ctls[chn_id], RELAY_CHN_TILT_CMD_REVERSE);
+        relay_chn_tilt_issue_cmd(&s_tilt_ctls[chn_id], RELAY_CHN_TILT_CMD_REVERSE);
     }
 }
 
@@ -249,8 +291,8 @@ void relay_chn_tilt_reverse_all()
 
 void relay_chn_tilt_stop(uint8_t chn_id)
 {
-    if (!relay_chn_is_channel_id_valid(chn_id)) {
-        relay_chn_tilt_dispatch_cmd(&tilt_ctls[chn_id], RELAY_CHN_TILT_CMD_STOP);
+    if (relay_chn_is_channel_id_valid(chn_id)) {
+        relay_chn_tilt_dispatch_cmd(&s_tilt_ctls[chn_id], RELAY_CHN_TILT_CMD_STOP);
     }
 }
 
@@ -263,22 +305,22 @@ void relay_chn_tilt_stop_all()
 
 void relay_chn_tilt_auto()
 {
-    relay_chn_tilt_issue_auto(&tilt_ctl);
+    relay_chn_tilt_issue_auto(&s_tilt_ctl);
 }
 
 void relay_chn_tilt_forward()
 {
-    relay_chn_tilt_issue_cmd(&tilt_ctl, RELAY_CHN_TILT_CMD_FORWARD);
+    relay_chn_tilt_issue_cmd(&s_tilt_ctl, RELAY_CHN_TILT_CMD_FORWARD);
 }
 
 void relay_chn_tilt_reverse()
 {
-    relay_chn_tilt_issue_cmd(&tilt_ctl, RELAY_CHN_TILT_CMD_REVERSE);
+    relay_chn_tilt_issue_cmd(&s_tilt_ctl, RELAY_CHN_TILT_CMD_REVERSE);
 }
 
 void relay_chn_tilt_stop()
 {
-    relay_chn_tilt_dispatch_cmd(&tilt_ctl, RELAY_CHN_TILT_CMD_STOP);
+    relay_chn_tilt_issue_cmd(&s_tilt_ctl, RELAY_CHN_TILT_CMD_STOP);
 }
 #endif // CONFIG_RELAY_CHN_COUNT > 1
 
@@ -317,7 +359,7 @@ static void relay_chn_tilt_compute_set_sensitivity(relay_chn_tilt_ctl_t *tilt_ct
         uint32_t tilt_run_time_ms = 0, tilt_pause_time_ms = 0;
         tilt_run_time_ms = RELAY_CHN_TILT_RUN_MIN_MS + (sensitivity * (RELAY_CHN_TILT_RUN_MAX_MS - RELAY_CHN_TILT_RUN_MIN_MS) / 100);
         tilt_pause_time_ms = RELAY_CHN_TILT_PAUSE_MIN_MS + (sensitivity * (RELAY_CHN_TILT_PAUSE_MAX_MS - RELAY_CHN_TILT_PAUSE_MIN_MS) / 100);
-        
+
         relay_chn_tilt_set_timing_values(&tilt_ctl->tilt_timing,
                                          sensitivity,
                                          tilt_run_time_ms,
@@ -330,8 +372,8 @@ void relay_chn_tilt_set_sensitivity(uint8_t chn_id, uint8_t sensitivity)
 {
     if (relay_chn_is_channel_id_valid(chn_id)) {
         ADJUST_TILT_SENS_BOUNDARIES(sensitivity);
-        relay_chn_tilt_compute_set_sensitivity(&tilt_ctls[chn_id], sensitivity);
-        
+        relay_chn_tilt_compute_set_sensitivity(&s_tilt_ctls[chn_id], sensitivity);
+
 #if CONFIG_RELAY_CHN_ENABLE_NVS
         relay_chn_nvs_set_tilt_sensitivity(chn_id, sensitivity);
 #endif // CONFIG_RELAY_CHN_ENABLE_NVS
@@ -341,7 +383,7 @@ void relay_chn_tilt_set_sensitivity(uint8_t chn_id, uint8_t sensitivity)
 esp_err_t relay_chn_tilt_set_sensitivity_all(uint8_t *sensitivities)
 {
     ESP_RETURN_ON_FALSE(sensitivities != NULL, ESP_ERR_INVALID_ARG, TAG, "set_sensitivity_all: sensitivities is NULL");
-    
+
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         uint8_t *src_sensitivity = &sensitivities[i];
         if (src_sensitivity == NULL) {
@@ -349,7 +391,7 @@ esp_err_t relay_chn_tilt_set_sensitivity_all(uint8_t *sensitivities)
             break;
         }
         ADJUST_TILT_SENS_BOUNDARIES(*src_sensitivity);
-        relay_chn_tilt_compute_set_sensitivity(&tilt_ctls[i], *src_sensitivity);
+        relay_chn_tilt_compute_set_sensitivity(&s_tilt_ctls[i], *src_sensitivity);
 #if CONFIG_RELAY_CHN_ENABLE_NVS
         relay_chn_nvs_set_tilt_sensitivity(i, *src_sensitivity);
 #endif // CONFIG_RELAY_CHN_ENABLE_NVS
@@ -361,7 +403,7 @@ void relay_chn_tilt_set_sensitivity_all_with(uint8_t sensitivity)
 {
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         ADJUST_TILT_SENS_BOUNDARIES(sensitivity);
-        relay_chn_tilt_compute_set_sensitivity(&tilt_ctls[i], sensitivity);
+        relay_chn_tilt_compute_set_sensitivity(&s_tilt_ctls[i], sensitivity);
 #if CONFIG_RELAY_CHN_ENABLE_NVS
         relay_chn_nvs_set_tilt_sensitivity(i, sensitivity);
 #endif // CONFIG_RELAY_CHN_ENABLE_NVS
@@ -371,20 +413,20 @@ void relay_chn_tilt_set_sensitivity_all_with(uint8_t sensitivity)
 uint8_t relay_chn_tilt_get_sensitivity(uint8_t chn_id)
 {
     return relay_chn_is_channel_id_valid(chn_id) ?
-           tilt_ctls[chn_id].tilt_timing.sensitivity : 0;
+           s_tilt_ctls[chn_id].tilt_timing.sensitivity : 0;
 }
 
 esp_err_t relay_chn_tilt_get_sensitivity_all(uint8_t *sensitivities)
 {
     ESP_RETURN_ON_FALSE(sensitivities != NULL, ESP_ERR_INVALID_ARG, TAG, "get_sensitivity_all: sensitivities is NULL");
-    
+
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         uint8_t *dest_sensitivity = &sensitivities[i];
         if (dest_sensitivity == NULL) {
             ESP_LOGW(TAG, "get_sensitivity_all: Sensitivites have been copied until channel %d since sensitivities[%d] is NULL", i, i);
             break;
         }
-        *dest_sensitivity = tilt_ctls[i].tilt_timing.sensitivity;
+        *dest_sensitivity = s_tilt_ctls[i].tilt_timing.sensitivity;
     }
     return ESP_OK;
 }
@@ -394,8 +436,8 @@ esp_err_t relay_chn_tilt_get_sensitivity_all(uint8_t *sensitivities)
 void relay_chn_tilt_set_sensitivity(uint8_t sensitivity)
 {
     ADJUST_TILT_SENS_BOUNDARIES(sensitivity);
-    relay_chn_tilt_compute_set_sensitivity(&tilt_ctl, sensitivity);
-    
+    relay_chn_tilt_compute_set_sensitivity(&s_tilt_ctl, sensitivity);
+
 #if CONFIG_RELAY_CHN_ENABLE_NVS
     relay_chn_nvs_set_tilt_sensitivity(0, sensitivity);
 #endif // CONFIG_RELAY_CHN_ENABLE_NVS
@@ -403,7 +445,7 @@ void relay_chn_tilt_set_sensitivity(uint8_t sensitivity)
 
 uint8_t relay_chn_tilt_get_sensitivity()
 {
-    return tilt_ctl.tilt_timing.sensitivity;
+    return s_tilt_ctl.tilt_timing.sensitivity;
 }
 #endif // CONFIG_RELAY_CHN_COUNT > 1
 
@@ -418,25 +460,25 @@ void relay_chn_tilt_reset_count(relay_chn_tilt_ctl_t *tilt_ctl)
 
 /**
  * @brief Update tilt count automatically and return the current value.
- * 
+ *
  * This helper function updates the relevant tilt count depending on the
  * last run info and helps the tilt module in deciding whether the requested
  * tilt should execute or not.
- * 
+ *
  * This is useful to control reverse tilting for the same direction particularly.
  * For example:
  *   - If the channel's last run was FORWARD and a TILT_FORWARD is requested,
- *     then the tilt count will count up on the relay_chn_tilt_ctl_t::tilt_count 
+ *     then the tilt count will count up on the relay_chn_tilt_ctl_t::tilt_count
  *     and the function will return the actual count.
  *   - If the channel's last run was FORWARD and a TILT_REVERSE is requested,
- *     then the relay_chn_tilt_ctl_t::tilt_count will be checked against zero first, 
- *     and then it will count down and return the actual count if it is greater 
+ *     then the relay_chn_tilt_ctl_t::tilt_count will be checked against zero first,
+ *     and then it will count down and return the actual count if it is greater
  *     than 0, else the function will return 0.
  *   - If the tilt command is irrelevant then the function will return 0.
  *   - If the last run is irrelevant then the function will return 0.
- * 
+ *
  * @param tilt_ctl The relay channel handle.
- * 
+ *
  * @return The actual value of the relevant count.
  * @return 1 if the last tilt_count was 1 and decremented to 0.
  * @return 0 if:
@@ -607,7 +649,7 @@ static void relay_chn_tilt_timer_cb(void *arg)
 {
     relay_chn_tilt_ctl_t* tilt_ctl = (relay_chn_tilt_ctl_t*) arg;
     ESP_RETURN_VOID_ON_FALSE(tilt_ctl != NULL, TAG, "relay_chn_tilt_timer_cb: timer arg is NULL");
-    
+
     switch (tilt_ctl->step)
     {
         case RELAY_CHN_TILT_STEP_MOVE:
@@ -627,7 +669,7 @@ static void relay_chn_tilt_timer_cb(void *arg)
             // Just dispatch the pending tilt command
             relay_chn_tilt_dispatch_cmd(tilt_ctl, tilt_ctl->cmd);
             break;
-        
+
         default:
             break;
     }
@@ -636,24 +678,16 @@ static void relay_chn_tilt_timer_cb(void *arg)
 #if CONFIG_RELAY_CHN_ENABLE_NVS
 static esp_err_t relay_chn_tilt_load_sensitivity(uint8_t ch, uint8_t *sensitivity)
 {
-    esp_err_t ret = relay_chn_nvs_get_tilt_sensitivity(ch, sensitivity);
-    if (ret == ESP_ERR_NVS_NOT_FOUND) {
-        *sensitivity = RELAY_CHN_TILT_DEFAULT_SENSITIVITY;
-        return ESP_OK;
-    }
-    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to load tilt sensitivity for channel %d", ch);
+    ESP_RETURN_ON_ERROR(relay_chn_nvs_get_tilt_sensitivity(ch, sensitivity, RELAY_CHN_TILT_DEFAULT_SENSITIVITY),
+                        TAG, "Failed to load tilt sensitivity for channel %d", ch);
     return ESP_OK;
 }
 
 static esp_err_t relay_chn_tilt_load_tilt_count(uint8_t ch, uint16_t *tilt_count)
 {
-    esp_err_t ret = relay_chn_nvs_get_tilt_count(ch, tilt_count);
-    if (ret == ESP_ERR_NVS_NOT_FOUND) {
-        ESP_LOGD(TAG, "relay_chn_tilt_load_tilt_count: No tilt count found in NVS for channel %d, initializing to zero", ch);
-        tilt_count = 0;
-        return ESP_OK;
-    }
-    ESP_RETURN_ON_ERROR(ret, TAG, "Failed to load tilt counters for channel %d", ch);
+    ESP_RETURN_ON_ERROR(relay_chn_nvs_get_tilt_count(ch, tilt_count, 0),
+                        TAG, "Failed to load tilt counters for channel %d", ch);
+    ESP_LOGD(TAG, "Loaded tilt count for channel %d: %d", ch, *tilt_count);
     return ESP_OK;
 }
 #endif // CONFIG_RELAY_CHN_ENABLE_NVS
@@ -670,7 +704,7 @@ static esp_err_t relay_chn_tilt_ctl_init(relay_chn_tilt_ctl_t *tilt_ctl,
 
     tilt_ctl->chn_ctl = chn_ctl;
     tilt_ctl->chn_ctl->tilt_ctl = tilt_ctl;
-    
+
     // Create tilt timer for the channel
     char timer_name[32];
     snprintf(timer_name, sizeof(timer_name), "relay_chn_%2d_tilt_timer", chn_ctl->id);
@@ -697,7 +731,7 @@ esp_err_t relay_chn_tilt_init(relay_chn_ctl_t *chn_ctls)
 {
     uint8_t sensitivity;
     uint16_t tilt_count;
-    
+
 #if CONFIG_RELAY_CHN_COUNT > 1
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         esp_err_t ret;
@@ -710,7 +744,7 @@ esp_err_t relay_chn_tilt_init(relay_chn_ctl_t *chn_ctls)
         sensitivity = RELAY_CHN_TILT_DEFAULT_SENSITIVITY;
         tilt_count = 0;
 #endif // CONFIG_RELAY_CHN_ENABLE_NVS == 1
-        ret = relay_chn_tilt_ctl_init(&tilt_ctls[i], &chn_ctls[i], tilt_count, sensitivity);
+        ret = relay_chn_tilt_ctl_init(&s_tilt_ctls[i], &chn_ctls[i], tilt_count, sensitivity);
         ESP_RETURN_ON_ERROR(ret, TAG, "Failed to init tilt control for channel %d", i);
     }
     return ESP_OK;
@@ -723,7 +757,7 @@ esp_err_t relay_chn_tilt_init(relay_chn_ctl_t *chn_ctls)
     ret = relay_chn_tilt_load_tilt_count(0, &tilt_count);
     ESP_RETURN_ON_ERROR(ret, TAG, "Failed to load tilt count for channel %d", 0);
 #endif // CONFIG_RELAY_CHN_ENABLE_NVS == 1
-    return relay_chn_tilt_ctl_init(&tilt_ctl, chn_ctls, tilt_count, sensitivity);
+    return relay_chn_tilt_ctl_init(&s_tilt_ctl, chn_ctls, tilt_count, sensitivity);
 #endif // CONFIG_RELAY_CHN_COUNT > 1
 }
 
@@ -745,9 +779,9 @@ void relay_chn_tilt_deinit()
 {
 #if CONFIG_RELAY_CHN_COUNT > 1
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        relay_chn_tilt_ctl_deinit(&tilt_ctls[i]);
+        relay_chn_tilt_ctl_deinit(&s_tilt_ctls[i]);
     }
 #else
-    relay_chn_tilt_ctl_deinit(&tilt_ctl);
+    relay_chn_tilt_ctl_deinit(&s_tilt_ctl);
 #endif // CONFIG_RELAY_CHN_COUNT > 1
 }

test_apps/main/CMakeLists.txt

@@ -1,16 +1,18 @@
 # === These files must be included in any case ===
 set(srcs "test_common.c"
+         "test_relay_chn_notify_common.c"
          "test_app_main.c")
 
-set(incdirs ".")
+set(incdirs "."
+            "../../private_include")
 
 # === Selective compilation based on channel count ===
 if(CONFIG_RELAY_CHN_COUNT GREATER 1)
     list(APPEND srcs "test_relay_chn_core_multi.c"
-                     "test_relay_chn_listener_multi.c")
+                     "test_relay_chn_notify_multi.c")
 else()
     list(APPEND srcs "test_relay_chn_core_single.c"
-                     "test_relay_chn_listener_single.c")
+                     "test_relay_chn_notify_single.c")
 endif()
 
 if(CONFIG_RELAY_CHN_ENABLE_TILTING)
@@ -22,7 +24,6 @@ if(CONFIG_RELAY_CHN_ENABLE_TILTING)
 endif()
 
 if(CONFIG_RELAY_CHN_ENABLE_NVS)
-    list(APPEND incdirs "../../private_include")
     list(APPEND srcs "../../src/relay_chn_nvs.c")
     if(CONFIG_RELAY_CHN_COUNT GREATER 1)
         list(APPEND srcs "test_relay_chn_nvs_multi.c")

test_apps/main/test_app_main.c

@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
 
 #include <stdbool.h>
 #include "esp_log.h"
@@ -18,9 +23,9 @@
 #define RELAY_CHN_UNITY_TEST_GROUP_TAG "relay_chn"
 #endif
 
-void setUp() 
+void setUp()
 {
-    
+
 }
 
 void tearDown()
@@ -70,7 +75,7 @@ static void test_nvs_flash_deinit(void)
 }
 #endif
 
-void app_main(void) 
+void app_main(void)
 {
 #if CONFIG_RELAY_CHN_ENABLE_NVS
     // Init NVS once for all tests
@@ -104,6 +109,6 @@ void app_main(void)
 #endif
 
     ESP_LOGI(TEST_TAG, "All tests complete.");
-    
+
     esp_restart(); // Restart to invoke qemu exit
 }

test_apps/main/test_common.c

@@ -1,4 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 #include "test_common.h"
+#include "relay_chn_ctl.h" // For resetting the channels
+
+#if CONFIG_RELAY_CHN_ENABLE_TILTING
+#include "relay_chn_tilt.h" // For resetting tilt count
+#endif
 
 const char *TEST_TAG = "RELAY_CHN_TEST";
 
@@ -32,36 +43,45 @@ const uint8_t gpio_map[] = {4, 5};
 
 const uint8_t gpio_count = sizeof(gpio_map) / sizeof(gpio_map[0]);
 
+static void reset_channel(relay_chn_ctl_t *ctl)
+{
+    ctl->pending_cmd = RELAY_CHN_CMD_NONE;
+    ctl->state = RELAY_CHN_STATE_IDLE;
+    ctl->output->direction = RELAY_CHN_DIRECTION_DEFAULT;
+    ctl->run_info->last_run_cmd = RELAY_CHN_CMD_NONE;
+    ctl->run_info->last_run_cmd_time_ms = 0;
+    esp_timer_stop(ctl->inertia_timer);
+#if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
+    esp_timer_stop(ctl->run_limit_timer);
+    ctl->run_limit_sec = CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC;
+#endif
+#if CONFIG_RELAY_CHN_ENABLE_TILTING
+    relay_chn_tilt_reset_count(ctl->tilt_ctl);
+#endif
+#if CONFIG_RELAY_CHN_COUNT > 1
+    #else
+#endif
+}
+
 void reset_channels_to_defaults()
 {
 #if CONFIG_RELAY_CHN_COUNT > 1
-    relay_chn_stop_all();
-#if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
-    relay_chn_set_run_limit_all_with(CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC);
-#endif
-    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
-    for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state(i));
+    relay_chn_ctl_t *ctls = relay_chn_ctl_get_all();
+    TEST_ASSERT_NOT_NULL_MESSAGE(ctls, "reset_channels_to_defaults: relay_chn_ctl_get_all() returned NULL");
 
-        // Reset directions
-        if (relay_chn_get_direction(i) != RELAY_CHN_DIRECTION_DEFAULT) {
-            relay_chn_flip_direction(i);
-            TEST_ASSERT_EQUAL(RELAY_CHN_DIRECTION_DEFAULT, relay_chn_get_direction(i));
-        }
+    for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        relay_chn_ctl_t *ctl = &ctls[i];
+        TEST_ASSERT_NOT_NULL_MESSAGE(ctl, "ctl is NULL");
+        reset_channel(ctl);
+        TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state(i));
+        TEST_ASSERT_EQUAL(RELAY_CHN_DIRECTION_DEFAULT, relay_chn_get_direction(i));
     }
 #else
-    relay_chn_stop();
-#if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
-    relay_chn_set_run_limit(CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC);
-#endif
-
-    // Reset direction
-    if (relay_chn_get_direction() != RELAY_CHN_DIRECTION_DEFAULT) {
-        relay_chn_flip_direction();
-        TEST_ASSERT_EQUAL(RELAY_CHN_DIRECTION_DEFAULT, relay_chn_get_direction());
-    }
-    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
+    relay_chn_ctl_t *ctl = relay_chn_ctl_get();
+    TEST_ASSERT_NOT_NULL_MESSAGE(ctl, "reset_channels_to_defaults: relay_chn_ctl_get() returned NULL");
+    reset_channel(ctl);
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state());
+    TEST_ASSERT_EQUAL(RELAY_CHN_DIRECTION_DEFAULT, relay_chn_get_direction());
 #endif
 }
 

test_apps/main/test_common.h

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 #pragma once
 
 #include <string.h> // For memset

test_apps/main/test_relay_chn_core_multi.c

@@ -1,19 +1,25 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 #include "test_common.h"
 
-relay_chn_state_t states[CONFIG_RELAY_CHN_COUNT], expect_states[CONFIG_RELAY_CHN_COUNT];
-relay_chn_direction_t directions[CONFIG_RELAY_CHN_COUNT], expect_directions[CONFIG_RELAY_CHN_COUNT];
+static relay_chn_state_t s_states[CONFIG_RELAY_CHN_COUNT], s_expect_states[CONFIG_RELAY_CHN_COUNT];
+static relay_chn_direction_t s_directions[CONFIG_RELAY_CHN_COUNT], s_expect_directions[CONFIG_RELAY_CHN_COUNT];
 
 static void test_set_expected_state_all(relay_chn_state_t state)
 {
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        expect_states[i] = state;
+        s_expect_states[i] = state;
     }
 }
 
 static void test_set_expected_direction_all(relay_chn_direction_t direction)
 {
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        expect_directions[i] = direction;
+        s_expect_directions[i] = direction;
     }
 }
 
@@ -85,7 +91,7 @@ TEST_CASE("Run reverse does nothing if channel id is invalid", "[relay_chn][core
 TEST_CASE("Relay channels run reverse and update state", "[relay_chn][core]")
 {
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        relay_chn_run_reverse(i); // relay_chn_run_reverse returns void
+        relay_chn_run_reverse(i);
         vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
         TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state(i));
     }
@@ -142,7 +148,7 @@ TEST_CASE("Relay channels stop and update to FREE state", "[relay_chn][core]")
         TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, relay_chn_get_state(i));
 
         // Now, issue the stop command
-        relay_chn_stop(i); // relay_chn_stop returns void
+        relay_chn_stop(i);
         // Immediately after stop, state should be STOPPED
         vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
         TEST_ASSERT_EQUAL(RELAY_CHN_STATE_STOPPED, relay_chn_get_state(i));
@@ -195,19 +201,19 @@ TEST_CASE("Multiple channels can operate independently", "[relay_chn][core]")
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state(1)); // Other channel should not be affected
 
     // Start Channel 1 in reverse direction
-    relay_chn_run_reverse(1); // relay_chn_run_reverse returns void
+    relay_chn_run_reverse(1);
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, relay_chn_get_state(0));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state(1));
 
     // Stop Channel 0 and wait for it to become FREE
-    relay_chn_stop(0); // relay_chn_stop returns void
+    relay_chn_stop(0);
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state(0));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state(1)); // Other channel should continue running
 
     // Stop Channel 1 and wait for it to become FREE
-    relay_chn_stop(1); // relay_chn_stop returns void
+    relay_chn_stop(1);
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state(0));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state(1));
@@ -225,24 +231,24 @@ TEST_CASE("Forward to Reverse transition with opposite inertia", "[relay_chn][co
     // 1. Start in forward direction
     relay_chn_run_forward_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Short delay for state stabilization
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_FORWARD);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
 
     // 2. Issue reverse command
-    relay_chn_run_reverse_all(); // relay_chn_run_reverse returns void
+    relay_chn_run_reverse_all();
     // Immediately after the command, the motor should be stopped
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); 
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_REVERSE_PENDING);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
 
     // Wait for the inertia period (after which the reverse command will be dispatched)
-    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS)); 
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     // Should now be in reverse state
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_REVERSE);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
 }
 
 // TEST_CASE: Test transition from reverse to forward with inertia and state checks
@@ -250,24 +256,24 @@ TEST_CASE("Forward to Reverse transition with opposite inertia", "[relay_chn][co
 TEST_CASE("Reverse to Forward transition with opposite inertia", "[relay_chn][core][inertia]")
 {
     // 1. Start in reverse direction
-    relay_chn_run_reverse_all(); // relay_chn_run_reverse returns void
+    relay_chn_run_reverse_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_REVERSE);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
 
     // 2. Issue forward command
     relay_chn_run_forward_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_FORWARD_PENDING);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
 
     // Wait for inertia
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_FORWARD);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
 }
 
 // TEST_CASE: Test issuing the same run command while already running (no inertia expected)
@@ -277,18 +283,18 @@ TEST_CASE("Running in same direction does not incur inertia", "[relay_chn][core]
     // 1. Start in forward direction
     relay_chn_run_forward_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_FORWARD);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
 
     // 2. Issue the same forward command again
     relay_chn_run_forward_all();
     // As per the code, is_direction_opposite_to_current_motion should return false, so no inertia.
     // Just a short delay to check state remains the same.
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_FORWARD);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
 }
 
 // ### Direction Flipping Tests
@@ -299,7 +305,7 @@ TEST_CASE("Direction can be flipped for each channel independently", "[relay_chn
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         TEST_ASSERT_EQUAL(RELAY_CHN_DIRECTION_DEFAULT, relay_chn_get_direction(i));
     }
-    
+
     // 2. Flip the direction
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         relay_chn_flip_direction(i);
@@ -330,44 +336,44 @@ TEST_CASE("All channels direction can be flipped simultaneously", "[relay_chn][c
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
 
     // 2. Verify all channels are flipped
-    TEST_ESP_OK(relay_chn_get_direction_all(directions));
+    TEST_ESP_OK(relay_chn_get_direction_all(s_directions));
     test_set_expected_direction_all(RELAY_CHN_DIRECTION_FLIPPED);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_directions, directions, CONFIG_RELAY_CHN_COUNT);
-    
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_directions, s_directions, CONFIG_RELAY_CHN_COUNT);
+
     // 3. Flip all back
     relay_chn_flip_direction_all();
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
 
     // 4. Verify all channels are back to default
-    TEST_ESP_OK(relay_chn_get_direction_all(directions));
+    TEST_ESP_OK(relay_chn_get_direction_all(s_directions));
     test_set_expected_direction_all(RELAY_CHN_DIRECTION_DEFAULT);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_directions, directions, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_directions, s_directions, CONFIG_RELAY_CHN_COUNT);
 }
 
 TEST_CASE("Flipping a running channel stops it and flips direction", "[relay_chn][core][direction]")
 {
     // 1. Start channel running and verify state
     relay_chn_run_forward_all();
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_FORWARD);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
     // 2. Flip the direction while running
     relay_chn_flip_direction_all();
     // 3. The channel should stop as part of the flip process
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_STOPPED);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
 
     // 4. Wait for the flip inertia to pass, after which it should be idle and FLIPPED
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
-    
-    TEST_ESP_OK(relay_chn_get_state_all(states));
-    test_set_expected_state_all(RELAY_CHN_STATE_IDLE);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
 
-    TEST_ESP_OK(relay_chn_get_direction_all(directions));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
+    test_set_expected_state_all(RELAY_CHN_STATE_IDLE);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
+
+    TEST_ESP_OK(relay_chn_get_direction_all(s_directions));
     test_set_expected_direction_all(RELAY_CHN_DIRECTION_FLIPPED);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_directions, directions, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_directions, s_directions, CONFIG_RELAY_CHN_COUNT);
 }
 
 TEST_CASE("Direction flip handles invalid channel ID gracefully", "[relay_chn][core][direction]")
@@ -381,7 +387,7 @@ TEST_CASE("Direction flip handles invalid channel ID gracefully", "[relay_chn][c
 TEST_CASE("get_state_all retrieves all channel states", "[relay_chn][core][batch]")
 {
     // 1. All should be IDLE initially
-    TEST_ESP_OK(relay_chn_get_state_all(states));
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
     test_set_expected_state_all(RELAY_CHN_STATE_IDLE);
 
     // 2. Set some states
@@ -397,29 +403,30 @@ TEST_CASE("get_state_all retrieves all channel states", "[relay_chn][core][batch
     // 3. Get all states and verify
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         if (i % 2 == 0) {
-            expect_states[i] = RELAY_CHN_STATE_FORWARD;
+            s_expect_states[i] = RELAY_CHN_STATE_FORWARD;
         } else {
-            expect_states[i] = RELAY_CHN_STATE_REVERSE;
+            s_expect_states[i] = RELAY_CHN_STATE_REVERSE;
         }
     }
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_states, states, CONFIG_RELAY_CHN_COUNT);
+    TEST_ESP_OK(relay_chn_get_state_all(s_states));
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_states, s_states, CONFIG_RELAY_CHN_COUNT);
 }
 
 TEST_CASE("get_direction_all retrieves all channel directions", "[relay_chn][core][direction][batch]")
 {
      // 1. All should be default initially
-    TEST_ESP_OK(relay_chn_get_direction_all(directions));
+    TEST_ESP_OK(relay_chn_get_direction_all(s_directions));
     test_set_expected_direction_all(RELAY_CHN_DIRECTION_DEFAULT);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_directions, directions, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_directions, s_directions, CONFIG_RELAY_CHN_COUNT);
 
     // 2. Flip all
     relay_chn_flip_direction_all();
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
 
     // 3. Get all directions and verify
-    TEST_ESP_OK(relay_chn_get_direction_all(directions));
+    TEST_ESP_OK(relay_chn_get_direction_all(s_directions));
     test_set_expected_direction_all(RELAY_CHN_DIRECTION_FLIPPED);
-    TEST_ASSERT_EQUAL_UINT_ARRAY(expect_directions, directions, CONFIG_RELAY_CHN_COUNT);
+    TEST_ASSERT_EQUAL_UINT_ARRAY(s_expect_directions, s_directions, CONFIG_RELAY_CHN_COUNT);
 }
 
 TEST_CASE("get_all functions handle NULL arguments", "[relay_chn][core][batch]")
@@ -445,7 +452,7 @@ TEST_CASE("Test run limit initialization", "[relay_chn][run_limit]")
     }
 }
 
-TEST_CASE("Test run limit setting boundaries", "[relay_chn][run_limit]") 
+TEST_CASE("Test run limit setting boundaries", "[relay_chn][run_limit]")
 {
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         // Test minimum boundary
@@ -475,7 +482,7 @@ TEST_CASE("Test run limit stops channel after timeout", "[relay_chn][run_limit]"
         // Check running forward
         TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, relay_chn_get_state(i));
     }
-    
+
     // Wait for run limit timeout
     vTaskDelay(pdMS_TO_TICKS(TEST_SHORT_RUN_LIMIT_SEC * 1000 + TEST_DELAY_MARGIN_MS));
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
@@ -485,29 +492,31 @@ TEST_CASE("Test run limit stops channel after timeout", "[relay_chn][run_limit]"
 
 TEST_CASE("Test run limit reset on direction change and time out finally", "[relay_chn][run_limit]")
 {
-    for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        // Set a short run limit
-        relay_chn_set_run_limit(i, TEST_SHORT_RUN_LIMIT_SEC);
-        
-        // Start running forward
-        relay_chn_run_forward(i);
-    }
+    relay_chn_set_run_limit_all_with(TEST_SHORT_RUN_LIMIT_SEC);
+
+#if CONFIG_RELAY_CHN_ENABLE_NVS
+    // Wait for the NVS module task to process operations
+    vTaskDelay(300 / portTICK_PERIOD_MS); // Wait 1 second
+#endif
+
+    // Start running forward
+    relay_chn_run_forward_all();
 
     vTaskDelay(1000 / portTICK_PERIOD_MS); // Wait 1 second
-    
+
     // Change direction before timeout
     relay_chn_run_reverse_all();
-    
+
     // Wait for the inertia period (after which the reverse command will be dispatched)
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
 
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state(i));
     }
-    
+
     // Timer should time out and stop the channel after the run limit time
     vTaskDelay(pdMS_TO_TICKS(TEST_SHORT_RUN_LIMIT_SEC * 1000 + TEST_DELAY_MARGIN_MS));
-    
+
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         TEST_ASSERT_EQUAL(RELAY_CHN_STATE_STOPPED, relay_chn_get_state(i));
     }
@@ -518,11 +527,11 @@ TEST_CASE("Test run limit persistence across stop/start", "[relay_chn][run_limit
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         // Set initial run limit
         relay_chn_set_run_limit(i, TEST_RUN_LIMIT_SEC);
-        
+
         // Stop and start channel
         relay_chn_stop(i);
         relay_chn_run_forward(i);
-        
+
         // Run limit should persist
         TEST_ASSERT_EQUAL(TEST_RUN_LIMIT_SEC, relay_chn_get_run_limit(i));
     }

test_apps/main/test_relay_chn_core_single.c

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 #include "test_common.h"
 
 
@@ -38,7 +44,7 @@ TEST_CASE("Relay channels run forward and update state", "[relay_chn][core]")
 // TEST_CASE: Test that relays run in the reverse direction and update their state
 TEST_CASE("Relay channels run reverse and update state", "[relay_chn][core]")
 {
-    relay_chn_run_reverse(); // relay_chn_run_reverse returns void
+    relay_chn_run_reverse();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state());
 }
@@ -54,7 +60,7 @@ TEST_CASE("Relay channels stop and update to IDLE state", "[relay_chn][core]")
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, relay_chn_get_state());
 
     // Now, issue the stop command
-    relay_chn_stop(); // relay_chn_stop returns void
+    relay_chn_stop();
     // Immediately after stop, state should be STOPPED
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_STOPPED, relay_chn_get_state());
@@ -79,13 +85,13 @@ TEST_CASE("Forward to Reverse transition with opposite inertia", "[relay_chn][co
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, relay_chn_get_state());
 
     // 2. Issue reverse command
-    relay_chn_run_reverse(); // relay_chn_run_reverse returns void
+    relay_chn_run_reverse();
     // Immediately after the command, the motor should be stopped
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); 
-    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE_PENDING, relay_chn_get_state()); 
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE_PENDING, relay_chn_get_state());
 
     // Wait for the inertia period (after which the reverse command will be dispatched)
-    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS)); 
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state()); // Should now be in reverse state
 }
 
@@ -94,7 +100,7 @@ TEST_CASE("Forward to Reverse transition with opposite inertia", "[relay_chn][co
 TEST_CASE("Reverse to Forward transition with opposite inertia", "[relay_chn][core][inertia]")
 {
     // 1. Start in reverse direction
-    relay_chn_run_reverse(); // relay_chn_run_reverse returns void
+    relay_chn_run_reverse();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state());
 
@@ -121,7 +127,7 @@ TEST_CASE("Running in same direction does not incur inertia", "[relay_chn][core]
     relay_chn_run_forward();
     // As per the code, is_direction_opposite_to_current_motion should return false, so no inertia.
     // Just a short delay to check state remains the same.
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); 
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, relay_chn_get_state());
 }
 
@@ -171,7 +177,7 @@ TEST_CASE("Flipping a running channel stops it and flips direction", "[relay_chn
     // 2. Flip the direction while running
     relay_chn_flip_direction();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Give time for events to process
-    
+
     // 3. The channel should stop as part of the flip process
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_STOPPED, relay_chn_get_state());
 
@@ -191,7 +197,7 @@ TEST_CASE("Test run limit initialization", "[relay_chn][run_limit]")
     TEST_ASSERT_EQUAL(CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC, relay_chn_get_run_limit());
 }
 
-TEST_CASE("Test run limit setting boundaries", "[relay_chn][run_limit]") 
+TEST_CASE("Test run limit setting boundaries", "[relay_chn][run_limit]")
 {
     // Test minimum boundary
     relay_chn_set_run_limit(CONFIG_RELAY_CHN_RUN_LIMIT_MIN_SEC - 1);
@@ -210,11 +216,11 @@ TEST_CASE("Test run limit stops channel after timeout", "[relay_chn][run_limit]"
 {
     // Set a short run limit for testing
     relay_chn_set_run_limit(TEST_SHORT_RUN_LIMIT_SEC);
-    
+
     // Start running forward
     relay_chn_run_forward();
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, relay_chn_get_state());
-    
+
     // Wait for run limit timeout
     vTaskDelay(pdMS_TO_TICKS(TEST_SHORT_RUN_LIMIT_SEC * 1000 + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_STOPPED, relay_chn_get_state());
@@ -224,22 +230,22 @@ TEST_CASE("Test run limit reset on direction change and time out finally", "[rel
 {
     // Set a short run limit
     relay_chn_set_run_limit(TEST_SHORT_RUN_LIMIT_SEC);
-    
+
     // Start running forward
     relay_chn_run_forward();
     vTaskDelay(1000 / portTICK_PERIOD_MS); // Wait 1 second
-    
+
     // Change direction before timeout
     relay_chn_run_reverse();
-    
+
     // Wait for the inertia period (after which the reverse command will be dispatched)
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
-    
+
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state());
-    
+
     // Timer should time out and stop the channel after the run limit time
     vTaskDelay(pdMS_TO_TICKS(TEST_SHORT_RUN_LIMIT_SEC * 1000 + TEST_DELAY_MARGIN_MS));
-    
+
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_STOPPED, relay_chn_get_state());
 }
 
@@ -247,11 +253,11 @@ TEST_CASE("Test run limit persistence across stop/start", "[relay_chn][run_limit
 {
     // Set initial run limit
     relay_chn_set_run_limit(TEST_RUN_LIMIT_SEC);
-    
+
     // Stop and start channel
     relay_chn_stop();
     relay_chn_run_forward();
-    
+
     // Run limit should persist
     TEST_ASSERT_EQUAL(TEST_RUN_LIMIT_SEC, relay_chn_get_run_limit());
 }

test_apps/main/test_relay_chn_listener_multi.c

@@ -1,127 +0,0 @@
-#include "test_common.h"
-
-
-// --- Listener Test Globals ---
-typedef struct {
-    uint8_t chn_id;
-    relay_chn_state_t old_state;
-    relay_chn_state_t new_state;
-    int call_count;
-} listener_callback_info_t;
-
-static listener_callback_info_t listener1_info;
-static listener_callback_info_t listener2_info;
-
-// --- Listener Test Helper Functions ---
-
-// Clear the memory from possible garbage values
-static void reset_listener_info(listener_callback_info_t* info) {
-    memset(info, 0, sizeof(listener_callback_info_t));
-}
-
-static void test_listener_1(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state) {
-    listener1_info.chn_id = chn_id;
-    listener1_info.old_state = old_state;
-    listener1_info.new_state = new_state;
-    listener1_info.call_count++;
-}
-
-static void test_listener_2(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state) {
-    listener2_info.chn_id = chn_id;
-    listener2_info.old_state = old_state;
-    listener2_info.new_state = new_state;
-    listener2_info.call_count++;
-}
-
-// ### Listener Functionality Tests
-
-TEST_CASE("Listener is called on state change", "[relay_chn][listener]")
-{
-    uint8_t ch = 0;
-    reset_listener_info(&listener1_info);
-
-    // 1. Register the listener
-    TEST_ESP_OK(relay_chn_register_listener(test_listener_1));
-
-    // 2. Trigger a state change
-    relay_chn_run_forward(ch);
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow event to be processed
-
-    // 3. Verify the listener was called with correct parameters
-    TEST_ASSERT_EQUAL(1, listener1_info.call_count);
-    TEST_ASSERT_EQUAL(ch, listener1_info.chn_id);
-    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, listener1_info.old_state);
-    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, listener1_info.new_state);
-
-    // 4. Unregister to clean up
-    relay_chn_unregister_listener(test_listener_1);
-}
-
-TEST_CASE("Unregistered listener is not called", "[relay_chn][listener]")
-{
-    uint8_t ch = 0;
-    reset_listener_info(&listener1_info);
-
-    // 1. Register and then immediately unregister the listener
-    TEST_ESP_OK(relay_chn_register_listener(test_listener_1));
-    relay_chn_unregister_listener(test_listener_1);
-
-    // 2. Trigger a state change
-    relay_chn_run_forward(ch);
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-
-    // 3. Verify the listener was NOT called
-    TEST_ASSERT_EQUAL(0, listener1_info.call_count);
-}
-
-TEST_CASE("Multiple listeners are called on state change", "[relay_chn][listener]")
-{
-    uint8_t ch = 0;
-    reset_listener_info(&listener1_info);
-    reset_listener_info(&listener2_info);
-
-    // 1. Register two different listeners
-    TEST_ESP_OK(relay_chn_register_listener(test_listener_1));
-    TEST_ESP_OK(relay_chn_register_listener(test_listener_2));
-
-    // 2. Trigger a state change
-    relay_chn_run_forward(ch);
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-
-    // 3. Verify listener 1 was called correctly
-    TEST_ASSERT_EQUAL(1, listener1_info.call_count);
-    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, listener1_info.old_state);
-    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, listener1_info.new_state);
-
-    // 4. Verify listener 2 was also called correctly
-    TEST_ASSERT_EQUAL(1, listener2_info.call_count);
-    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, listener2_info.old_state);
-    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, listener2_info.new_state);
-
-    // 5. Clean up
-    relay_chn_unregister_listener(test_listener_1);
-    relay_chn_unregister_listener(test_listener_2);
-}
-
-TEST_CASE("Listener registration handles invalid arguments and duplicates", "[relay_chn][listener]")
-{
-    reset_listener_info(&listener1_info);
-
-    // 1. Registering a NULL listener should fail
-    TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_register_listener(NULL));
-
-    // 2. Unregistering a NULL listener should not crash
-    relay_chn_unregister_listener(NULL);
-
-    // 3. Registering the same listener twice should be handled gracefully
-    TEST_ESP_OK(relay_chn_register_listener(test_listener_1));
-    TEST_ESP_OK(relay_chn_register_listener(test_listener_1)); // Second call should be a no-op
-
-    // 4. Trigger a state change and verify the listener is only called ONCE
-    relay_chn_run_forward(0);
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-    TEST_ASSERT_EQUAL(1, listener1_info.call_count);
-
-    // 5. Clean up
-    relay_chn_unregister_listener(test_listener_1);
-}

test_apps/main/test_relay_chn_notify_common.c

@@ -0,0 +1,55 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "test_relay_chn_notify_common.h"
+
+listener_callback_info_t listener1_info;
+listener_callback_info_t listener2_info;
+
+// --- Globals for Advanced Tests ---
+SemaphoreHandle_t blocking_listener_sem = NULL;
+SemaphoreHandle_t log_check_sem = NULL;
+volatile int blocking_listener_call_count = 0;
+vprintf_like_t original_vprintf = NULL;
+
+// --- Listener Test Helper Functions ---
+
+// Clear the memory from possible garbage values
+void reset_listener_info(listener_callback_info_t* info) {
+    memset(info, 0, sizeof(listener_callback_info_t));
+}
+
+void test_listener_1(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state) {
+    listener1_info.chn_id = chn_id;
+    listener1_info.old_state = old_state;
+    listener1_info.new_state = new_state;
+    listener1_info.call_count++;
+}
+
+void test_listener_2(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state) {
+    listener2_info.chn_id = chn_id;
+    listener2_info.old_state = old_state;
+    listener2_info.new_state = new_state;
+    listener2_info.call_count++;
+}
+
+void blocking_listener(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state) {
+    blocking_listener_call_count++;
+    // Block until the main test task unblocks us
+    xSemaphoreTake(blocking_listener_sem, portMAX_DELAY);
+}
+
+int log_check_vprintf(const char *format, va_list args) {
+    // Buffer to hold the formatted log message
+    char buffer[256];
+    vsnprintf(buffer, sizeof(buffer), format, args);
+
+    if (strstr(buffer, "Notify queue is full")) {
+        xSemaphoreGive(log_check_sem);
+    }
+
+    return original_vprintf(format, args);
+}

test_apps/main/test_relay_chn_notify_common.h

@@ -0,0 +1,54 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#include "test_common.h"
+#include "freertos/semphr.h"
+#include <stdarg.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// This is defined in the source file, we redefine it here for the test.
+// The test build must have the same CONFIG_RELAY_CHN_COUNT.
+#define TEST_RELAY_CHN_NOTIFY_QUEUE_LEN  (16 + CONFIG_RELAY_CHN_COUNT * 4)
+
+// --- Listener Test Globals ---
+typedef struct {
+    uint8_t chn_id;
+    relay_chn_state_t old_state;
+    relay_chn_state_t new_state;
+    int call_count;
+} listener_callback_info_t;
+
+// --- Listener callback infos to be defined ---
+extern listener_callback_info_t listener1_info;
+extern listener_callback_info_t listener2_info;
+
+// --- Globals for Advanced Tests ---
+extern SemaphoreHandle_t blocking_listener_sem;
+extern SemaphoreHandle_t log_check_sem;
+extern volatile int blocking_listener_call_count;
+extern vprintf_like_t original_vprintf;
+
+
+// --- Listener Test Helper Functions ---
+
+// Clear the memory from possible garbage values
+void reset_listener_info(listener_callback_info_t* info);
+
+// State listeners for notify module testing
+void test_listener_1(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state);
+void test_listener_2(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state);
+void blocking_listener(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state);
+
+int log_check_vprintf(const char *format, va_list args);
+
+#ifdef __cplusplus
+}
+#endif

test_apps/main/test_relay_chn_notify_multi.c

@@ -0,0 +1,172 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "test_relay_chn_notify_common.h"
+
+// This is a private header, but we need it for direct notification calls and queue length.
+// It's included conditionally in the build via CMakeLists.txt when NVS is enabled.
+#include "relay_chn_notify.h"
+
+// ### Listener Functionality Tests
+
+TEST_CASE("Listener is called on state change for each channel", "[relay_chn][notify]")
+{
+    // 1. Register the listener and reset info
+    reset_listener_info(&listener1_info);
+    TEST_ESP_OK(relay_chn_register_listener(test_listener_1));
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow registration to be processed
+
+    // Loop through each channel
+    for (uint8_t ch = 0; ch < CONFIG_RELAY_CHN_COUNT; ch++) {
+        // 2. Trigger a state change on the current channel.
+        // tearDown() ensures each channel starts as IDLE.
+        relay_chn_run_forward(ch);
+        vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow event to be processed
+
+        // 3. Verify the listener was called with correct parameters for this channel.
+        // The listener_info struct is overwritten each time, but we check it before the next iteration.
+        TEST_ASSERT_EQUAL(ch, listener1_info.chn_id);
+        TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, listener1_info.old_state);
+        TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, listener1_info.new_state);
+    }
+
+    // 4. Verify the total call count after the loop
+    TEST_ASSERT_EQUAL(CONFIG_RELAY_CHN_COUNT, listener1_info.call_count);
+
+    // 5. Unregister to clean up
+    relay_chn_unregister_listener(test_listener_1);
+}
+
+TEST_CASE("Unregistered listener is not called for any channel", "[relay_chn][notify]")
+{
+    reset_listener_info(&listener1_info);
+
+    // 1. Register and then immediately unregister the listener
+    TEST_ESP_OK(relay_chn_register_listener(test_listener_1));
+    relay_chn_unregister_listener(test_listener_1);
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow commands to process
+
+    // 2. Trigger a state change on all channels
+    relay_chn_run_forward_all();
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS * CONFIG_RELAY_CHN_COUNT)); // Allow all events to be processed
+
+    // 3. Verify the listener was NOT called
+    TEST_ASSERT_EQUAL(0, listener1_info.call_count);
+}
+
+TEST_CASE("Multiple listeners are called on state change for each channel", "[relay_chn][notify]")
+{
+    // 1. Register listeners and reset info
+    reset_listener_info(&listener1_info);
+    reset_listener_info(&listener2_info);
+    TEST_ESP_OK(relay_chn_register_listener(test_listener_1));
+    TEST_ESP_OK(relay_chn_register_listener(test_listener_2));
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow registration commands to be processed
+
+    // Loop through each channel
+    for (uint8_t ch = 0; ch < CONFIG_RELAY_CHN_COUNT; ch++) {
+        // 2. Trigger a state change on the current channel
+        relay_chn_run_forward(ch);
+        vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+
+        // 3. Verify listener 1 was called correctly for this channel
+        TEST_ASSERT_EQUAL(ch, listener1_info.chn_id);
+        TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, listener1_info.old_state);
+        TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, listener1_info.new_state);
+
+        // 4. Verify listener 2 was also called correctly for this channel
+        TEST_ASSERT_EQUAL(ch, listener2_info.chn_id);
+        TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, listener2_info.old_state);
+        TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, listener2_info.new_state);
+    }
+
+    // 5. Verify total call counts
+    TEST_ASSERT_EQUAL(CONFIG_RELAY_CHN_COUNT, listener1_info.call_count);
+    TEST_ASSERT_EQUAL(CONFIG_RELAY_CHN_COUNT, listener2_info.call_count);
+
+    // 6. Clean up
+    relay_chn_unregister_listener(test_listener_1);
+    relay_chn_unregister_listener(test_listener_2);
+}
+
+TEST_CASE("Listener registration handles invalid arguments and duplicates", "[relay_chn][notify]")
+{
+    reset_listener_info(&listener1_info);
+
+    // 1. Registering a NULL listener should fail
+    TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_register_listener(NULL));
+
+    // 2. Unregistering a NULL listener should not crash
+    relay_chn_unregister_listener(NULL);
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow commands to process
+
+    // 3. Registering the same listener twice should be handled gracefully
+    TEST_ESP_OK(relay_chn_register_listener(test_listener_1));
+    TEST_ESP_OK(relay_chn_register_listener(test_listener_1)); // Second call should be a no-op
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow registration commands to be processed
+
+    // 4. Trigger a state change on all channels and verify the listener is only called ONCE per channel
+    relay_chn_run_forward_all();
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS * CONFIG_RELAY_CHN_COUNT)); // Allow all events to be processed
+    TEST_ASSERT_EQUAL(CONFIG_RELAY_CHN_COUNT, listener1_info.call_count);
+
+    // 5. Clean up
+    relay_chn_unregister_listener(test_listener_1);
+}
+
+TEST_CASE("Notify queue full scenario is handled gracefully", "[relay_chn][notify]")
+{
+    // 1. Setup
+    blocking_listener_sem = xSemaphoreCreateBinary();
+    log_check_sem = xSemaphoreCreateBinary();
+    blocking_listener_call_count = 0;
+
+    // Intercept logs to check for the "queue full" warning
+    original_vprintf = esp_log_set_vprintf(log_check_vprintf);
+
+    // 2. Register a listener that will block, allowing the queue to fill up
+    TEST_ESP_OK(relay_chn_register_listener(blocking_listener));
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow task to start
+
+    // 3. Fill the queue. The first event will be consumed immediately by the dispatcher,
+    // which will then call the blocking_listener and block. The remaining (LEN - 1)
+    // events will sit in the queue, leaving one empty slot.
+    // Use different channel IDs to make the test more robust.
+    for (int i = 0; i < TEST_RELAY_CHN_NOTIFY_QUEUE_LEN; i++) {
+        uint8_t ch = i % CONFIG_RELAY_CHN_COUNT;
+        TEST_ESP_OK(relay_chn_notify_state_change(ch, RELAY_CHN_STATE_IDLE, RELAY_CHN_STATE_FORWARD));
+    }
+
+    // 4. Send one more event to fill the last slot in the queue. This should succeed.
+    TEST_ESP_OK(relay_chn_notify_state_change(0, RELAY_CHN_STATE_IDLE, RELAY_CHN_STATE_FORWARD)); // Use any valid channel
+
+    // 5. Now the queue is full. Trigger one more event to cause an overflow.
+    // This call should fail and log the warning.
+    TEST_ASSERT_EQUAL(ESP_FAIL, relay_chn_notify_state_change(1 % CONFIG_RELAY_CHN_COUNT, RELAY_CHN_STATE_IDLE, RELAY_CHN_STATE_FORWARD));
+
+    // 6. Wait for the "queue full" log message to be captured by our vprintf hook
+    TEST_ASSERT_TRUE_MESSAGE(xSemaphoreTake(log_check_sem, pdMS_TO_TICKS(1000)) == pdTRUE, "Did not receive 'queue full' log message");
+
+    // 7. Unblock the listener so it can process all queued items.
+    // There was 1 initial event + QUEUE_LEN events that were successfully queued.
+    for (int i = 0; i < TEST_RELAY_CHN_NOTIFY_QUEUE_LEN + 1; i++) {
+        xSemaphoreGive(blocking_listener_sem);
+        // Give the dispatcher task a moment to process one item from the queue
+        vTaskDelay(pdMS_TO_TICKS(10));
+    }
+
+    // 8. Verify the listener was called exactly QUEUE_LEN + 1 times
+    TEST_ASSERT_EQUAL_INT(TEST_RELAY_CHN_NOTIFY_QUEUE_LEN + 1, blocking_listener_call_count);
+
+    // 9. Cleanup
+    esp_log_set_vprintf(original_vprintf);
+    relay_chn_unregister_listener(blocking_listener);
+    vSemaphoreDelete(blocking_listener_sem);
+    vSemaphoreDelete(log_check_sem);
+    blocking_listener_sem = NULL;
+    log_check_sem = NULL;
+    original_vprintf = NULL;
+}

test_apps/main/test_relay_chn_notify_single.c

@@ -1,40 +1,18 @@
-#include "test_common.h"
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
 
+#include "test_relay_chn_notify_common.h"
 
-// --- Listener Test Globals ---
-typedef struct {
-    relay_chn_state_t old_state;
-    relay_chn_state_t new_state;
-    int call_count;
-} listener_callback_info_t;
-
-static listener_callback_info_t listener1_info;
-static listener_callback_info_t listener2_info;
-
-// --- Listener Test Helper Functions ---
-
-// Clear the memory from possible garbage values
-static void reset_listener_info(listener_callback_info_t* info) {
-    memset(info, 0, sizeof(listener_callback_info_t));
-}
-
-static void test_listener_1(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state) {
-    /* Just ignore the channel id */
-    listener1_info.old_state = old_state;
-    listener1_info.new_state = new_state;
-    listener1_info.call_count++;
-}
-
-static void test_listener_2(uint8_t chn_id, relay_chn_state_t old_state, relay_chn_state_t new_state) {
-    /* Just ignore the channel id */
-    listener2_info.old_state = old_state;
-    listener2_info.new_state = new_state;
-    listener2_info.call_count++;
-}
+// This is a private header, but we need it for direct notification calls and queue length.
+// It's included conditionally in the build via CMakeLists.txt when NVS is enabled.
+#include "relay_chn_notify.h"
 
 // ### Listener Functionality Tests
 
-TEST_CASE("Listener is called on state change", "[relay_chn][listener]")
+TEST_CASE("Listener is called on state change", "[relay_chn][notify]")
 {
     reset_listener_info(&listener1_info);
 
@@ -54,7 +32,7 @@ TEST_CASE("Listener is called on state change", "[relay_chn][listener]")
     relay_chn_unregister_listener(test_listener_1);
 }
 
-TEST_CASE("Unregistered listener is not called", "[relay_chn][listener]")
+TEST_CASE("Unregistered listener is not called", "[relay_chn][notify]")
 {
     reset_listener_info(&listener1_info);
 
@@ -70,7 +48,7 @@ TEST_CASE("Unregistered listener is not called", "[relay_chn][listener]")
     TEST_ASSERT_EQUAL(0, listener1_info.call_count);
 }
 
-TEST_CASE("Multiple listeners are called on state change", "[relay_chn][listener]")
+TEST_CASE("Multiple listeners are called on state change", "[relay_chn][notify]")
 {
     reset_listener_info(&listener1_info);
     reset_listener_info(&listener2_info);
@@ -98,7 +76,7 @@ TEST_CASE("Multiple listeners are called on state change", "[relay_chn][listener
     relay_chn_unregister_listener(test_listener_2);
 }
 
-TEST_CASE("Listener registration handles invalid arguments and duplicates", "[relay_chn][listener]")
+TEST_CASE("Listener registration handles invalid arguments and duplicates", "[relay_chn][notify]")
 {
     reset_listener_info(&listener1_info);
 
@@ -120,3 +98,55 @@ TEST_CASE("Listener registration handles invalid arguments and duplicates", "[re
     // 5. Clean up
     relay_chn_unregister_listener(test_listener_1);
 }
+
+TEST_CASE("Notify queue full scenario is handled gracefully", "[relay_chn][notify]")
+{
+    // 1. Setup
+    blocking_listener_sem = xSemaphoreCreateBinary();
+    log_check_sem = xSemaphoreCreateBinary();
+    blocking_listener_call_count = 0;
+
+    // Intercept logs to check for the "queue full" warning
+    original_vprintf = esp_log_set_vprintf(log_check_vprintf);
+
+    // 2. Register a listener that will block, allowing the queue to fill up
+    TEST_ESP_OK(relay_chn_register_listener(blocking_listener));
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow task to start
+
+    // 3. Fill the queue. The first event will be consumed immediately by the dispatcher,
+    // which will then call the blocking_listener and block. The remaining (LEN - 1)
+    // events will sit in the queue, leaving one empty slot.
+    for (int i = 0; i < TEST_RELAY_CHN_NOTIFY_QUEUE_LEN; i++) {
+        TEST_ESP_OK(relay_chn_notify_state_change(0, RELAY_CHN_STATE_IDLE, RELAY_CHN_STATE_FORWARD));
+    }
+
+    // 4. Send one more event to fill the last slot in the queue. This should succeed.
+    TEST_ESP_OK(relay_chn_notify_state_change(0, RELAY_CHN_STATE_IDLE, RELAY_CHN_STATE_FORWARD));
+
+    // 5. Now the queue is full. Trigger one more event to cause an overflow.
+    // This call should fail and log the warning.
+    TEST_ASSERT_EQUAL(ESP_FAIL, relay_chn_notify_state_change(0, RELAY_CHN_STATE_IDLE, RELAY_CHN_STATE_FORWARD));
+
+    // 6. Wait for the "queue full" log message to be captured by our vprintf hook
+    TEST_ASSERT_TRUE_MESSAGE(xSemaphoreTake(log_check_sem, pdMS_TO_TICKS(1000)) == pdTRUE, "Did not receive 'queue full' log message");
+
+    // 7. Unblock the listener so it can process all queued items.
+    // There was 1 initial event + QUEUE_LEN events that were successfully queued.
+    for (int i = 0; i < TEST_RELAY_CHN_NOTIFY_QUEUE_LEN + 1; i++) {
+        xSemaphoreGive(blocking_listener_sem);
+        // Give the dispatcher task a moment to process one item from the queue
+        vTaskDelay(pdMS_TO_TICKS(10));
+    }
+
+    // 8. Verify the listener was called exactly QUEUE_LEN + 1 times
+    TEST_ASSERT_EQUAL_INT(TEST_RELAY_CHN_NOTIFY_QUEUE_LEN + 1, blocking_listener_call_count);
+
+    // 9. Cleanup
+    esp_log_set_vprintf(original_vprintf);
+    relay_chn_unregister_listener(blocking_listener);
+    vSemaphoreDelete(blocking_listener_sem);
+    vSemaphoreDelete(log_check_sem);
+    blocking_listener_sem = NULL;
+    log_check_sem = NULL;
+    original_vprintf = NULL;
+}

test_apps/main/test_relay_chn_nvs_multi.c

@@ -9,144 +9,181 @@
 #include "esp_system.h"
 #include "nvs_flash.h"
 #include "relay_chn_nvs.h"
+#include "test_common.h"
 
-TEST_CASE("Test relay storage init/deinit", "[relay_chn][nvs]")
-{
-    TEST_ESP_OK(relay_chn_nvs_init());
-    TEST_ESP_OK(relay_chn_nvs_deinit());
-}
+#define TEST_NVS_TASK_TIME_OUT_MS 300
 
 TEST_CASE("Test direction setting and getting", "[relay_chn][nvs]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
     // Test all channels
-    relay_chn_direction_t dir;
-    relay_chn_direction_t test_directions[] = {
-        RELAY_CHN_DIRECTION_DEFAULT,
-        RELAY_CHN_DIRECTION_FLIPPED
-    };
-    
-    for (int channel = 0; channel < 2; channel++) {
-        TEST_ESP_OK(relay_chn_nvs_set_direction(channel, test_directions[channel]));
-        TEST_ESP_OK(relay_chn_nvs_get_direction(channel, &dir));
-        TEST_ASSERT_EQUAL(test_directions[channel], dir);
+    relay_chn_direction_t dir, expect;
+
+    for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
+        dir = channel % 2 == 0 ? RELAY_CHN_DIRECTION_DEFAULT : RELAY_CHN_DIRECTION_FLIPPED;
+        TEST_ESP_OK(relay_chn_nvs_set_direction(channel, dir));
+    }
+
+    // Wait for the batch commit timeout to ensure the value is written
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS));
+
+    for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
+        expect = channel % 2 == 0 ? RELAY_CHN_DIRECTION_DEFAULT : RELAY_CHN_DIRECTION_FLIPPED;
+        TEST_ESP_OK(relay_chn_nvs_get_direction(channel, &dir, RELAY_CHN_DIRECTION_DEFAULT));
+        TEST_ASSERT_EQUAL(expect, dir);
     }
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
 }
 
 TEST_CASE("Test invalid parameters", "[relay_chn][nvs]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
     // Test NULL pointer for all channels
     for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
-        TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_direction(channel, NULL));
+        TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_direction(channel, NULL, RELAY_CHN_DIRECTION_DEFAULT));
     }
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
 }
 
 TEST_CASE("Test relay_chn_nvs_erase_all", "[relay_chn][nvs]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-
     // Store some test data first
-    relay_chn_direction_t direction = RELAY_CHN_DIRECTION_FLIPPED;
     for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
-        TEST_ESP_OK(relay_chn_nvs_set_direction(0, direction));
-    }
+        // Set direction for all channels
+        TEST_ESP_OK(relay_chn_nvs_set_direction(channel, RELAY_CHN_DIRECTION_FLIPPED));
+
+#if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
+        TEST_ESP_OK(relay_chn_nvs_set_run_limit(channel, 100 + channel));
+#endif
 
 #if CONFIG_RELAY_CHN_ENABLE_TILTING
-    uint8_t sensitivity = 50;
-    for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
-        TEST_ESP_OK(relay_chn_nvs_set_tilt_sensitivity(0, sensitivity));
-        TEST_ESP_OK(relay_chn_nvs_set_tilt_count(0, 100));
+        TEST_ESP_OK(relay_chn_nvs_set_tilt_sensitivity(channel, 50));
+        TEST_ESP_OK(relay_chn_nvs_set_tilt_count(channel, 100 + channel));
     }
 #endif
 
+    // Wait for the set operations and subsequent commits to complete
+    // Wait 4 times more since 4 x 8 = 32 operations to process
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS * 8));
+
     // Test erase all
     TEST_ESP_OK(relay_chn_nvs_erase_all());
 
+    // Wait for the erase operation and subsequent commit to complete
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS));
     // Verify data was erased by trying to read it back
-    relay_chn_direction_t read_direction;
-    TEST_ASSERT_EQUAL(ESP_ERR_NVS_NOT_FOUND, relay_chn_nvs_get_direction(0, &read_direction));
+    for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
+        relay_chn_direction_t read_direction;
+        TEST_ESP_OK(relay_chn_nvs_get_direction(0, &read_direction, RELAY_CHN_DIRECTION_DEFAULT));
+        TEST_ASSERT_EQUAL(RELAY_CHN_DIRECTION_DEFAULT, read_direction);
+    }
 
-#if CONFIG_RELAY_CHN_ENABLE_TILTING
-    uint8_t read_sensitivity;
-    TEST_ASSERT_EQUAL(ESP_ERR_NVS_NOT_FOUND, relay_chn_nvs_get_tilt_sensitivity(0, &read_sensitivity));
-
-    uint16_t tilt_count;
-    TEST_ASSERT_EQUAL(ESP_ERR_NVS_NOT_FOUND, relay_chn_nvs_get_tilt_count(0, &tilt_count));
+#if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
+    for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
+        uint16_t read_run_limit;
+        TEST_ESP_OK(relay_chn_nvs_get_run_limit(channel, &read_run_limit, CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC));
+        TEST_ASSERT_EQUAL(CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC, read_run_limit);
+    }
 #endif
 
-    TEST_ESP_OK(relay_chn_nvs_deinit());
+#if CONFIG_RELAY_CHN_ENABLE_TILTING
+    const uint8_t default_sensitivity_for_test = 42;
+    for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
+        uint8_t read_sensitivity;
+        TEST_ESP_OK(relay_chn_nvs_get_tilt_sensitivity(channel, &read_sensitivity, default_sensitivity_for_test));
+        TEST_ASSERT_EQUAL(default_sensitivity_for_test, read_sensitivity);
+        uint16_t tilt_count;
+        TEST_ESP_OK(relay_chn_nvs_get_tilt_count(channel, &tilt_count, 0));
+        TEST_ASSERT_EQUAL(0, tilt_count);
+    }
+#endif
 }
 
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
 TEST_CASE("Test run limit setting and getting", "[relay_chn][nvs][run_limit]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
-    const uint16_t run_limit_sec = 32;
+    // Use different values for each channel to detect overwrites
+    uint16_t test_limits[CONFIG_RELAY_CHN_COUNT];
     for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
-        TEST_ESP_OK(relay_chn_nvs_set_run_limit(i, run_limit_sec));
-        
-        uint16_t run_limit_read;
-        TEST_ESP_OK(relay_chn_nvs_get_run_limit(i, &run_limit_read));
-        TEST_ASSERT_EQUAL(run_limit_sec, run_limit_read);
+        test_limits[i] = 30 + i; // e.g., 30, 31, 32...
     }
-    TEST_ESP_OK(relay_chn_nvs_deinit());
+
+    // 1. Set all values first
+    for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        TEST_ESP_OK(relay_chn_nvs_set_run_limit(i, test_limits[i]));
+    }
+
+    // Allow the NVS task to process the batch and commit
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS));
+
+    // 2. Then, read them all back and verify
+    for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        uint16_t run_limit_read;
+        TEST_ESP_OK(relay_chn_nvs_get_run_limit(i, &run_limit_read, CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC));
+        TEST_ASSERT_EQUAL_UINT16(test_limits[i], run_limit_read);
+    }
+
+    // 3. Verify that changing one channel doesn't affect another
+    uint16_t new_limit_ch0 = 99;
+    TEST_ESP_OK(relay_chn_nvs_set_run_limit(0, new_limit_ch0));
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS)); // Allow NVS task to write
+    uint16_t read_val_ch0, read_val_ch1;
+    TEST_ESP_OK(relay_chn_nvs_get_run_limit(0, &read_val_ch0, CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC));
+    TEST_ESP_OK(relay_chn_nvs_get_run_limit(1, &read_val_ch1, CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC));
+    TEST_ASSERT_EQUAL_UINT16(new_limit_ch0, read_val_ch0);
+    TEST_ASSERT_EQUAL_UINT16(test_limits[1], read_val_ch1); // Should still be the old value
 }
 #endif
 
 #if CONFIG_RELAY_CHN_ENABLE_TILTING
 TEST_CASE("Test sensitivity setting and getting", "[relay_chn][nvs][tilt]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
-    const uint8_t test_sensitivity = 75;
-    uint8_t sensitivity;
-    
-    // Test all channels
-    for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
-        TEST_ESP_OK(relay_chn_nvs_set_tilt_sensitivity(channel, test_sensitivity));
-        TEST_ESP_OK(relay_chn_nvs_get_tilt_sensitivity(channel, &sensitivity));
-        TEST_ASSERT_EQUAL(test_sensitivity, sensitivity);
+    uint8_t test_sensitivities[CONFIG_RELAY_CHN_COUNT];
+    for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        test_sensitivities[i] = 70 + i; // e.g., 70, 71, 72...
+    }
+
+    // 1. Set all values first
+    for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        TEST_ESP_OK(relay_chn_nvs_set_tilt_sensitivity(i, test_sensitivities[i]));
+    }
+
+    // Allow the NVS task to process the batch and commit
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS));
+
+    // 2. Then, read them all back and verify
+    for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        uint8_t sensitivity_read;
+        TEST_ESP_OK(relay_chn_nvs_get_tilt_sensitivity(i, &sensitivity_read, 0));
+        TEST_ASSERT_EQUAL_UINT8(test_sensitivities[i], sensitivity_read);
     }
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
 }
 
 TEST_CASE("Test tilt counter operations", "[relay_chn][nvs][tilt]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
-    const uint16_t tilt_count = 100;
-    uint16_t tilt_count_read;
-    
-    // Test all channels
-    for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
-        // Test setting counters
-        TEST_ESP_OK(relay_chn_nvs_set_tilt_count(channel, tilt_count));
-        TEST_ESP_OK(relay_chn_nvs_get_tilt_count(channel, &tilt_count_read));
-        TEST_ASSERT_EQUAL(tilt_count, tilt_count_read);
+    uint16_t test_counts[CONFIG_RELAY_CHN_COUNT];
+    for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        test_counts[i] = 100 + i; // e.g., 100, 101, 102...
+    }
+
+    // 1. Set all values first
+    for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        TEST_ESP_OK(relay_chn_nvs_set_tilt_count(i, test_counts[i]));
+    }
+
+    // Allow the NVS task to process the batch and commit
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS));
+
+    // 2. Then, read them all back and verify
+    for (uint8_t i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        uint16_t count_read;
+        TEST_ESP_OK(relay_chn_nvs_get_tilt_count(i, &count_read, 0));
+        TEST_ASSERT_EQUAL_UINT16(test_counts[i], count_read);
     }
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
 }
 
 TEST_CASE("Test tilting invalid parameters", "[relay_chn][nvs][tilt]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
     // Test NULL pointers for all channels
     for (int channel = 0; channel < CONFIG_RELAY_CHN_COUNT; channel++) {
-        TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_tilt_sensitivity(channel, NULL));
-        TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_tilt_count(channel, NULL));
+        TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_tilt_sensitivity(channel, NULL, 0));
+        TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_tilt_count(channel, NULL, 0));
     }
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
 }
 #endif // CONFIG_RELAY_CHN_ENABLE_TILTING

test_apps/main/test_relay_chn_nvs_single.c

@@ -9,50 +9,43 @@
 #include "esp_system.h"
 #include "nvs_flash.h"
 #include "relay_chn_nvs.h"
+#include "test_common.h"
 
-
-TEST_CASE("Test relay storage init/deinit", "[relay_chn][nvs]")
-{
-    TEST_ESP_OK(relay_chn_nvs_init());
-    TEST_ESP_OK(relay_chn_nvs_deinit());
-}
+#define TEST_NVS_TASK_TIME_OUT_MS 300
 
 TEST_CASE("Test direction setting and getting", "[relay_chn][nvs]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
     // Test channel 0
     TEST_ESP_OK(relay_chn_nvs_set_direction(0, RELAY_CHN_DIRECTION_DEFAULT));
     relay_chn_direction_t dir;
-    TEST_ESP_OK(relay_chn_nvs_get_direction(0, &dir));
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS)); // Allow NVS task to write and commit
+    TEST_ESP_OK(relay_chn_nvs_get_direction(0, &dir, RELAY_CHN_DIRECTION_DEFAULT));
     TEST_ASSERT_EQUAL(RELAY_CHN_DIRECTION_DEFAULT, dir);
-    
+
     // Test channel 1
     TEST_ESP_OK(relay_chn_nvs_set_direction(0, RELAY_CHN_DIRECTION_FLIPPED));
-    TEST_ESP_OK(relay_chn_nvs_get_direction(0, &dir));
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS)); // Allow NVS task to write and commit
+    TEST_ESP_OK(relay_chn_nvs_get_direction(0, &dir, RELAY_CHN_DIRECTION_DEFAULT));
     TEST_ASSERT_EQUAL(RELAY_CHN_DIRECTION_FLIPPED, dir);
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
 }
 
 TEST_CASE("Test invalid parameters", "[relay_chn][nvs]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
     // Test NULL pointer
-    TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_direction(0, NULL));
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
+    TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_direction(0, NULL, RELAY_CHN_DIRECTION_DEFAULT));
 }
 
 TEST_CASE("Test relay_chn_nvs_erase_all", "[relay_chn][nvs]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-
     // Store some test data first
     relay_chn_direction_t direction = RELAY_CHN_DIRECTION_FLIPPED;
     TEST_ESP_OK(relay_chn_nvs_set_direction(0, direction));
 
+#if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
+    uint16_t run_limit = 123;
+    TEST_ESP_OK(relay_chn_nvs_set_run_limit(0, run_limit));
+#endif
+
 #if CONFIG_RELAY_CHN_ENABLE_TILTING
     uint8_t sensitivity = 50;
     TEST_ESP_OK(relay_chn_nvs_set_tilt_sensitivity(0, sensitivity));
@@ -62,76 +55,71 @@ TEST_CASE("Test relay_chn_nvs_erase_all", "[relay_chn][nvs]")
     // Test erase all
     TEST_ESP_OK(relay_chn_nvs_erase_all());
 
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS)); // Allow NVS task to write and commit
     // Verify data was erased by trying to read it back
     relay_chn_direction_t read_direction;
-    TEST_ASSERT_EQUAL(ESP_ERR_NVS_NOT_FOUND, relay_chn_nvs_get_direction(0, &read_direction));
+    TEST_ESP_OK(relay_chn_nvs_get_direction(0, &read_direction, RELAY_CHN_DIRECTION_DEFAULT));
+    TEST_ASSERT_EQUAL(RELAY_CHN_DIRECTION_DEFAULT, read_direction);
 
-#if CONFIG_RELAY_CHN_ENABLE_TILTING
-    uint8_t read_sensitivity;
-    TEST_ASSERT_EQUAL(ESP_ERR_NVS_NOT_FOUND, relay_chn_nvs_get_tilt_sensitivity(0, &read_sensitivity));
-
-    uint16_t tilt_count;
-    TEST_ASSERT_EQUAL(ESP_ERR_NVS_NOT_FOUND, relay_chn_nvs_get_tilt_count(0, &tilt_count));
+#if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
+    uint16_t read_run_limit;
+    TEST_ESP_OK(relay_chn_nvs_get_run_limit(0, &read_run_limit, CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC));
+    TEST_ASSERT_EQUAL(CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC, read_run_limit);
 #endif
 
-    TEST_ESP_OK(relay_chn_nvs_deinit());
+#if CONFIG_RELAY_CHN_ENABLE_TILTING
+    const uint8_t default_sensitivity_for_test = 42;
+    uint8_t read_sensitivity;
+    TEST_ESP_OK(relay_chn_nvs_get_tilt_sensitivity(0, &read_sensitivity, default_sensitivity_for_test));
+    TEST_ASSERT_EQUAL(default_sensitivity_for_test, read_sensitivity);
+    uint16_t tilt_count;
+    TEST_ESP_OK(relay_chn_nvs_get_tilt_count(0, &tilt_count, 0));
+    TEST_ASSERT_EQUAL(0, tilt_count);
+#endif
 }
 
 #if CONFIG_RELAY_CHN_ENABLE_RUN_LIMIT
 TEST_CASE("Test run limit setting and getting", "[relay_chn][nvs][run_limit]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
     const uint16_t run_limit_sec = 32;
     TEST_ESP_OK(relay_chn_nvs_set_run_limit(0, run_limit_sec));
-    
+
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS)); // Allow NVS task to write and commit
     uint16_t run_limit_read;
-    TEST_ESP_OK(relay_chn_nvs_get_run_limit(0, &run_limit_read));
+    TEST_ESP_OK(relay_chn_nvs_get_run_limit(0, &run_limit_read, CONFIG_RELAY_CHN_RUN_LIMIT_DEFAULT_SEC));
     TEST_ASSERT_EQUAL(run_limit_sec, run_limit_read);
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
 }
 #endif
 
 #if CONFIG_RELAY_CHN_ENABLE_TILTING
 TEST_CASE("Test sensitivity setting and getting", "[relay_chn][nvs][tilt]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
     const uint8_t test_sensitivity = 75;
     TEST_ESP_OK(relay_chn_nvs_set_tilt_sensitivity(0, test_sensitivity));
-    
+
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS)); // Allow NVS task to write and commit
     uint8_t sensitivity;
-    TEST_ESP_OK(relay_chn_nvs_get_tilt_sensitivity(0, &sensitivity));
+    TEST_ESP_OK(relay_chn_nvs_get_tilt_sensitivity(0, &sensitivity, 0));
     TEST_ASSERT_EQUAL(test_sensitivity, sensitivity);
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
 }
 
 TEST_CASE("Test tilt counter operations", "[relay_chn][nvs][tilt]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
     const uint16_t tilt_count = 100;
-    
+
     // Test setting counters
     TEST_ESP_OK(relay_chn_nvs_set_tilt_count(0, tilt_count));
-    
+
+    vTaskDelay(pdMS_TO_TICKS(TEST_NVS_TASK_TIME_OUT_MS)); // Allow NVS task to write and commit
     uint16_t tilt_count_read;
-    TEST_ESP_OK(relay_chn_nvs_get_tilt_count(0, &tilt_count_read));
+    TEST_ESP_OK(relay_chn_nvs_get_tilt_count(0, &tilt_count_read, 0));
     TEST_ASSERT_EQUAL(tilt_count, tilt_count_read);
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
 }
 
 TEST_CASE("Test tilting invalid parameters", "[relay_chn][nvs][tilt]")
 {
-    TEST_ESP_OK(relay_chn_nvs_init());
-    
     // Test NULL pointers
-    TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_tilt_sensitivity(0, NULL));
-    TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_tilt_count(0, NULL));
-    
-    TEST_ESP_OK(relay_chn_nvs_deinit());
+    TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_tilt_sensitivity(0, NULL, 0));
+    TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, relay_chn_nvs_get_tilt_count(0, NULL, 0));
 }
 #endif // CONFIG_RELAY_CHN_ENABLE_TILTING

test_apps/main/test_relay_chn_tilt_multi.c

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 #include "test_common.h"
 
 
@@ -15,16 +21,15 @@
 void check_all_channels_for_state(relay_chn_state_t state)
 {
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        // ESP_LOGI(TEST_TAG, "Checking channel %d for state %d", i, state);
         TEST_ASSERT_EQUAL(state, relay_chn_get_state(i));
     }
 }
 
 // Helper function to prepare channel for tilt tests
 void prepare_channels_for_tilt_with_mixed_runs() {
-    // Ensure the channel reset tilt control
-    relay_chn_tilt_stop_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-    
+
     // Ensure the channel has had a 'last_run_cmd'
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         if (i % 2 == 0) {
@@ -33,17 +38,20 @@ void prepare_channels_for_tilt_with_mixed_runs() {
             relay_chn_run_reverse(i);
         }
     }
-    
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow command to process
-    relay_chn_stop_all(); // Stop it to set last_run_cmd but return to FREE for next test
-    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
-    check_all_channels_for_state(RELAY_CHN_STATE_IDLE);
+
+    for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
+        relay_chn_state_t expect_state;
+        if (i % 2 == 0) {
+            expect_state = RELAY_CHN_STATE_FORWARD;
+        } else { // Assuming initial_cmd is RELAY_CHN_CMD_REVERSE
+            expect_state = RELAY_CHN_STATE_REVERSE;
+        }
+        TEST_ASSERT_EQUAL(expect_state, relay_chn_get_state(i));
+    }
 }
 
 // Helper function to prepare channel for tilt tests
 void prepare_all_channels_for_tilt(int initial_cmd) {
-    // Ensure the channel reset tilt control
-    relay_chn_tilt_stop_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
 
     // If the channels are not IDLE yet, wait more
@@ -54,66 +62,68 @@ void prepare_all_channels_for_tilt(int initial_cmd) {
             break;
         }
     }
-    
+
     if (not_idle) {
         vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS));
     }
-    
+    // Ensure all channels are IDLE
+    check_all_channels_for_state(RELAY_CHN_STATE_IDLE);
+
     // Ensure the channel has had a 'last_run_cmd'
     if (initial_cmd == RELAY_CHN_CMD_FORWARD) {
         relay_chn_run_forward_all();
     } else { // Assuming initial_cmd is RELAY_CHN_CMD_REVERSE
         relay_chn_run_reverse_all();
     }
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow command to process
-    relay_chn_stop_all(); // Stop all to set last_run_cmd but return to FREE for next test
-    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
-    
-    check_all_channels_for_state(RELAY_CHN_STATE_IDLE);
+
+    relay_chn_state_t expect_state = initial_cmd == RELAY_CHN_CMD_FORWARD 
+                                     ? RELAY_CHN_STATE_FORWARD : RELAY_CHN_STATE_REVERSE;
+    check_all_channels_for_state(expect_state);
+    ESP_LOGI(TEST_TAG, "All channels prepared for tilt test");
 }
 
 // TEST_CASE: Test transition from running forward to tilt forward
 // Scenario: RELAY_CHN_STATE_FORWARD -> (relay_chn_tilt_forward) -> RELAY_CHN_STATE_STOPPED -> (inertia) -> RELAY_CHN_STATE_TILT_FORWARD
 TEST_CASE("Run Forward to Tilt Forward transition with inertia", "[relay_chn][tilt][inertia]")
 {
-    // Prepare channel by running forward first to set last_run_cmd
-    prepare_all_channels_for_tilt(RELAY_CHN_CMD_FORWARD);
-
     // 1. Start in forward direction
-    relay_chn_run_forward_all(); 
+    relay_chn_run_forward_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_FORWARD);
 
     // 2. Issue tilt forward command
-    relay_chn_tilt_forward_all(); 
+    relay_chn_tilt_forward_all();
     // After tilt command, it should immediately stop and then trigger inertia.
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); 
-    check_all_channels_for_state(RELAY_CHN_STATE_STOPPED); 
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    check_all_channels_for_state(RELAY_CHN_STATE_STOPPED);
 
     // Wait for the inertia period (after which the tilt command will be dispatched)
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 // TEST_CASE: Test transition from running reverse to tilt reverse
 // Scenario: RELAY_CHN_STATE_REVERSE -> (relay_chn_tilt_reverse) -> RELAY_CHN_STATE_STOPPED -> (inertia) -> RELAY_CHN_STATE_TILT_REVERSE
 TEST_CASE("Run Reverse to Tilt Reverse transition with inertia", "[relay_chn][tilt][inertia]")
 {
-    // Prepare channel by running reverse first to set last_run_cmd
-    prepare_all_channels_for_tilt(RELAY_CHN_CMD_REVERSE);
-
     // 1. Start in reverse direction
-    relay_chn_run_reverse_all(); 
+    relay_chn_run_reverse_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_REVERSE);
 
     // 2. Issue tilt reverse command
-    relay_chn_tilt_reverse_all(); 
+    relay_chn_tilt_reverse_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_STOPPED);
 
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_REVERSE);
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 // TEST_CASE: Test transition from FREE state to tilt forward (now with preparation)
@@ -122,12 +132,19 @@ TEST_CASE("FREE to Tilt Forward transition with inertia (prepared)", "[relay_chn
 {
     // Prepare channel by running forward first to set last_run_cmd
     prepare_all_channels_for_tilt(RELAY_CHN_CMD_FORWARD);
+    relay_chn_stop_all(); // Stop to trigger IDLE
+    // Wait for the channel to transition to IDLE
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
+    check_all_channels_for_state(RELAY_CHN_STATE_IDLE); // Ensure we are back to IDLE
 
     // Issue tilt forward command
-    relay_chn_tilt_forward_all(); 
+    relay_chn_tilt_forward_all();
     // From FREE state, tilt command should still incur the inertia due to the internal timer logic
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); 
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 // TEST_CASE: Test transition from FREE state to tilt reverse (now with preparation)
@@ -136,11 +153,18 @@ TEST_CASE("FREE to Tilt Reverse transition with inertia (prepared)", "[relay_chn
 {
     // Prepare channel by running reverse first to set last_run_cmd
     prepare_all_channels_for_tilt(RELAY_CHN_CMD_REVERSE);
+    relay_chn_stop_all(); // Stop to trigger IDLE
+    // Wait for the channel to transition to IDLE
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
+    check_all_channels_for_state(RELAY_CHN_STATE_IDLE); // Ensure we are back to IDLE
 
     // Issue tilt reverse command
-    relay_chn_tilt_reverse_all(); 
+    relay_chn_tilt_reverse_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_REVERSE);
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 // TEST_CASE: Test transition from tilt forward to run forward (inertia expected for run)
@@ -154,11 +178,14 @@ TEST_CASE("Tilt Forward to Run Forward transition with inertia", "[relay_chn][ti
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
 
     // 2. Issue run forward command
-    relay_chn_run_forward_all(); 
+    relay_chn_run_forward_all();
     // From Tilt to Run in the same logical name but in the opposite direction, inertia is expected.
     check_all_channels_for_state(RELAY_CHN_STATE_FORWARD_PENDING);
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_FORWARD);
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 // TEST_CASE: Test transition from tilt reverse to run reverse (no inertia expected for run)
@@ -172,10 +199,13 @@ TEST_CASE("Tilt Reverse to Run Reverse transition with inertia", "[relay_chn][ti
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_REVERSE);
 
     // 2. Issue run reverse command
-    relay_chn_run_reverse_all(); 
+    relay_chn_run_reverse_all();
     check_all_channels_for_state(RELAY_CHN_STATE_REVERSE_PENDING);
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_REVERSE);
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 // TEST_CASE: Test transition from tilt forward to run reverse (without inertia)
@@ -189,9 +219,12 @@ TEST_CASE("Tilt Forward to Run Reverse transition without inertia", "[relay_chn]
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
 
     // 2. Issue run reverse command (opposite direction)
-    relay_chn_run_reverse_all(); 
+    relay_chn_run_reverse_all();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_REVERSE);
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 // TEST_CASE: Test stopping from a tilt state (no inertia for stop command itself)
@@ -222,10 +255,14 @@ TEST_CASE("tilt_forward_all sets all channels to TILT_FORWARD", "[relay_chn][til
 
     // 2. Issue tilt forward to all channels
     relay_chn_tilt_forward_all();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Tilt from FREE doesn't have stop-inertia
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
 
     // 3. Verify all channels are tilting forward
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 TEST_CASE("tilt_reverse_all sets all channels to TILT_REVERSE", "[relay_chn][tilt][batch]")
@@ -235,19 +272,26 @@ TEST_CASE("tilt_reverse_all sets all channels to TILT_REVERSE", "[relay_chn][til
 
     // 2. Issue tilt reverse to all channels
     relay_chn_tilt_reverse_all();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
 
     // 3. Verify all channels are tilting reverse
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_REVERSE);
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 TEST_CASE("tilt_stop_all stops all tilting channels", "[relay_chn][tilt][batch]")
 {
     // 1. Prepare and start all channels tilting forward
     prepare_all_channels_for_tilt(RELAY_CHN_CMD_FORWARD);
-    
+
     relay_chn_tilt_forward_all();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
+    // 3. Verify all channels are tilting forward
+    check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
 
     // 2. Stop tilting on all channels
     relay_chn_tilt_stop_all();
@@ -259,23 +303,24 @@ TEST_CASE("tilt_stop_all stops all tilting channels", "[relay_chn][tilt][batch]"
 
 TEST_CASE("tilt_auto_all tilts channels based on last run direction", "[relay_chn][tilt][batch]")
 {
-    // This test requires at least 2 channels to demonstrate different behaviors
-    TEST_ASSERT_GREATER_OR_EQUAL_MESSAGE(2, CONFIG_RELAY_CHN_COUNT, "Test requires at least 2 channels");
-
     // 1. Prepare channel 0 with last run FORWARD and channel 1 with last run REVERSE
     prepare_channels_for_tilt_with_mixed_runs();
 
     // 2. Issue auto tilt command to all channels
     relay_chn_tilt_auto_all();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Tilt from FREE state is dispatched immediately
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
 
     // 3. Verify even channels tilt forward (last run was forward) and odd channels tilt reverse (last run was reverse)
     for (int i = 0; i < CONFIG_RELAY_CHN_COUNT; i++) {
         relay_chn_state_t state = i % 2 == 0 ?
             RELAY_CHN_STATE_TILT_FORWARD : RELAY_CHN_STATE_TILT_REVERSE;
- 
+
         TEST_ASSERT_EQUAL(state, relay_chn_get_state(i));
     }
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 // Test relay_chn_tilt_auto() chooses correct tilt direction
@@ -284,19 +329,24 @@ TEST_CASE("relay_chn_tilt_auto chooses correct direction", "[relay_chn][tilt][au
     // Prepare FORWARD
     prepare_all_channels_for_tilt(RELAY_CHN_CMD_FORWARD);
     relay_chn_tilt_auto_all();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     // Verify all tilt forward
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
 
+    // Ensure the channel reset tilt control
     relay_chn_tilt_stop_all();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
 
     // Prepare REVERSE
     prepare_all_channels_for_tilt(RELAY_CHN_CMD_REVERSE);
     relay_chn_tilt_auto_all();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     // Verify all tilt reverse
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_REVERSE);
+
+    // Ensure the channel reset tilt control
+    relay_chn_tilt_stop_all();
 }
 
 // Test sensitivity set/get
@@ -313,15 +363,26 @@ TEST_CASE("relay_chn_tilt_set_sensitivity and get", "[relay_chn][tilt][sensitivi
     TEST_ASSERT_EQUAL_UINT8(100, relay_chn_tilt_get_sensitivity(ch));
     // Set all channels
     relay_chn_tilt_set_sensitivity_all_with(42);
-    
+
     uint8_t vals[CONFIG_RELAY_CHN_COUNT] = {0};
     uint8_t expect[CONFIG_RELAY_CHN_COUNT];
     memset(expect, 42, CONFIG_RELAY_CHN_COUNT);
-    
+
     TEST_ESP_OK(relay_chn_tilt_get_sensitivity_all(vals));
     TEST_ASSERT_EQUAL_UINT8_ARRAY(expect, vals, CONFIG_RELAY_CHN_COUNT);
 }
 
+TEST_CASE("relay_chn_tilt_get_default_sensitivity returns correct value", "[relay_chn][tilt][sensitivity]")
+{
+    // The default sensitivity is calculated from default timing values.
+    // Default run time: 15ms, Min run time: 50ms, Max run time: 10ms.
+    // Formula: ( (DEFAULT_RUN - MIN_RUN) * 100 ) / (MAX_RUN - MIN_RUN)
+    // ( (15 - 50) * 100 ) / (10 - 50) = (-35 * 100) / -40 = -3500 / -40 = 87.5
+    // As integer arithmetic, this is 87.
+    uint8_t expected_sensitivity = 87;
+    TEST_ASSERT_EQUAL_UINT8(expected_sensitivity, relay_chn_tilt_get_default_sensitivity());
+}
+
 // Test sensitivity upper boundary for all set functions
 TEST_CASE("relay_chn_tilt_set_sensitivity functions handle upper boundary", "[relay_chn][tilt][sensitivity]")
 {
@@ -354,34 +415,41 @@ TEST_CASE("relay_chn_tilt_set_sensitivity functions handle upper boundary", "[re
 // Test tilt counter logic: forward x3, reverse x3, extra reverse fails
 TEST_CASE("tilt counter logic: forward and reverse consumption", "[relay_chn][tilt][counter]")
 {
-
 // Tilt execution time at 100% sensitivity in milliseconds (10 + 90)
 #define TEST_TILT_EXECUTION_TIME_MS 100
 
     prepare_all_channels_for_tilt(RELAY_CHN_CMD_FORWARD);
+
     relay_chn_tilt_set_sensitivity_all_with(100); // Set sentivity to max for fastest execution
+    // Ensure sensitivities are set correctly
+    uint8_t sensitivities[CONFIG_RELAY_CHN_COUNT];
+    uint8_t expect[CONFIG_RELAY_CHN_COUNT];
+    memset(expect, 100, CONFIG_RELAY_CHN_COUNT);
+    relay_chn_tilt_get_sensitivity_all(sensitivities);
+    TEST_ASSERT_EQUAL_UINT8_ARRAY(expect, sensitivities, CONFIG_RELAY_CHN_COUNT);
 
     // Tilt forward 3 times
-    for (int i = 0; i < 3; ++i) {
-        relay_chn_tilt_forward_all();
-        vTaskDelay(pdMS_TO_TICKS(TEST_TILT_EXECUTION_TIME_MS));
-        check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
-        relay_chn_tilt_stop_all();
-    }
+    relay_chn_tilt_forward_all();
+    vTaskDelay(pdMS_TO_TICKS(TEST_TILT_EXECUTION_TIME_MS * 3 + TEST_DELAY_MARGIN_MS));
+    check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
+
+    // Stop tilt on all channels
+    relay_chn_tilt_stop_all();
+#if CONFIG_RELAY_CHN_ENABLE_NVS
+    // Tilt stop should save the latest tilt count to the NVS
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS + 300));
+#else
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+#endif
 
     // Now tilt reverse 3 times (should succeed)
-    for (int i = 0; i < 3; ++i) {
-        relay_chn_tilt_reverse_all();
-        vTaskDelay(pdMS_TO_TICKS(TEST_TILT_EXECUTION_TIME_MS));
-        check_all_channels_for_state(RELAY_CHN_STATE_TILT_REVERSE);
-        relay_chn_tilt_stop_all();
-    }
-
-    // Extra reverse tilt should fail (counter exhausted)
     relay_chn_tilt_reverse_all();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-    // Should not enter TILT_REVERSE, should remain IDLE
+    vTaskDelay(pdMS_TO_TICKS(TEST_TILT_EXECUTION_TIME_MS));
+    check_all_channels_for_state(RELAY_CHN_STATE_TILT_REVERSE);
+    // Let it execute 2 at least, or more
+    vTaskDelay(pdMS_TO_TICKS(TEST_TILT_EXECUTION_TIME_MS * 3));
+
+    // More reverse tilt should fail (counter exhausted)
     check_all_channels_for_state(RELAY_CHN_STATE_IDLE);
 }
 
@@ -406,12 +474,12 @@ TEST_CASE("run_all command during active tilt cycle stops tilt", "[relay_chn][ti
     // Set a known sensitivity for predictable timing.
     // For sensitivity=50, move_time=30ms, pause_time=270ms.
     relay_chn_tilt_set_sensitivity_all_with(50);
-    const uint32_t move_time_ms = 30;
 
     // --- Test interrupting during MOVE step ---
     prepare_all_channels_for_tilt(RELAY_CHN_CMD_FORWARD);
     relay_chn_tilt_forward_all();
-    vTaskDelay(pdMS_TO_TICKS(move_time_ms / 2)); // Wait for half of the move time
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
 
     // Interrupt with run_reverse_all while in the MOVE part of the cycle
@@ -421,9 +489,12 @@ TEST_CASE("run_all command during active tilt cycle stops tilt", "[relay_chn][ti
     check_all_channels_for_state(RELAY_CHN_STATE_REVERSE);
 
     // --- Test interrupting during PAUSE step ---
+    relay_chn_stop_all(); // Stop the reverse runs
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     prepare_all_channels_for_tilt(RELAY_CHN_CMD_FORWARD);
     relay_chn_tilt_forward_all();
-    vTaskDelay(pdMS_TO_TICKS(move_time_ms + TEST_DELAY_MARGIN_MS)); // Wait past MOVE, into PAUSE
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS)); // Wait past MOVE, into PAUSE
     check_all_channels_for_state(RELAY_CHN_STATE_TILT_FORWARD);
 
     // Interrupt with run_forward_all while in the PAUSE part of the cycle

test_apps/main/test_relay_chn_tilt_single.c

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Kozmotronik Tech
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 #include "test_common.h"
 
 
@@ -24,29 +30,25 @@ void prepare_channel_for_tilt(int initial_cmd) {
     } else { // Assuming initial_cmd is RELAY_CHN_CMD_REVERSE
         relay_chn_run_reverse();
     }
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); // Allow command to process
-    relay_chn_stop(); // Stop it to set last_run_cmd but return to FREE for next test
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
-    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state());
+    relay_chn_state_t expect_state = initial_cmd == RELAY_CHN_CMD_FORWARD ? RELAY_CHN_STATE_FORWARD : RELAY_CHN_STATE_REVERSE;
+    TEST_ASSERT_EQUAL(expect_state, relay_chn_get_state());
 }
 
 // Test transition from running forward to tilt forward
 // Scenario: RELAY_CHN_STATE_FORWARD -> (relay_chn_tilt_forward) -> RELAY_CHN_STATE_STOPPED -> (inertia) -> RELAY_CHN_STATE_TILT_FORWARD
 TEST_CASE("Run Forward to Tilt Forward transition with inertia", "[relay_chn][tilt][inertia]")
 {
-    // Prepare channel by running forward first to set last_run_cmd
-    prepare_channel_for_tilt(RELAY_CHN_CMD_FORWARD);
-
     // 1. Start in forward direction
-    relay_chn_run_forward(); 
+    relay_chn_run_forward();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD, relay_chn_get_state());
 
     // 2. Issue tilt forward command
-    relay_chn_tilt_forward(); 
+    relay_chn_tilt_forward();
     // After tilt command, it should immediately stop and then trigger inertia.
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); 
-    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_STOPPED, relay_chn_get_state()); 
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_STOPPED, relay_chn_get_state());
 
     // Wait for the inertia period (after which the tilt command will be dispatched)
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
@@ -57,16 +59,13 @@ TEST_CASE("Run Forward to Tilt Forward transition with inertia", "[relay_chn][ti
 // Scenario: RELAY_CHN_STATE_REVERSE -> (relay_chn_tilt_reverse) -> RELAY_CHN_STATE_STOPPED -> (inertia) -> RELAY_CHN_STATE_TILT_REVERSE
 TEST_CASE("Run Reverse to Tilt Reverse transition with inertia", "[relay_chn][tilt][inertia]")
 {
-    // Prepare channel by running reverse first to set last_run_cmd
-    prepare_channel_for_tilt(RELAY_CHN_CMD_REVERSE);
-
     // 1. Start in reverse direction
-    relay_chn_run_reverse(); 
+    relay_chn_run_reverse();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state());
 
     // 2. Issue tilt reverse command
-    relay_chn_tilt_reverse(); 
+    relay_chn_tilt_reverse();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_STOPPED, relay_chn_get_state());
 
@@ -80,12 +79,15 @@ TEST_CASE("FREE to Tilt Forward transition with inertia (prepared)", "[relay_chn
 {
     // Prepare channel by running forward first to set last_run_cmd
     prepare_channel_for_tilt(RELAY_CHN_CMD_FORWARD);
+    relay_chn_stop(); // Stop to trigger IDLE
+    // Wait for the channel to transition to IDLE
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state()); // Ensure we are back to FREE
 
     // Issue tilt forward command
-    relay_chn_tilt_forward(); 
+    relay_chn_tilt_forward();
     // From FREE state, tilt command should still incur the inertia due to the internal timer logic
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS)); 
+    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_FORWARD, relay_chn_get_state());
 }
 
@@ -95,10 +97,13 @@ TEST_CASE("FREE to Tilt Reverse transition with inertia (prepared)", "[relay_chn
 {
     // Prepare channel by running reverse first to set last_run_cmd
     prepare_channel_for_tilt(RELAY_CHN_CMD_REVERSE);
+    relay_chn_stop(); // Stop to trigger IDLE
+    // Wait for the channel to transition to IDLE
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state()); // Ensure we are back to FREE
 
     // Issue tilt reverse command
-    relay_chn_tilt_reverse(); 
+    relay_chn_tilt_reverse();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_REVERSE, relay_chn_get_state());
 }
@@ -114,7 +119,7 @@ TEST_CASE("Tilt Forward to Run Forward transition with inertia", "[relay_chn][ti
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_FORWARD, relay_chn_get_state());
 
     // 2. Issue run forward command
-    relay_chn_run_forward(); 
+    relay_chn_run_forward();
     // From Tilt to Run in the same logical name but in the opposite direction, inertia is expected.
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_FORWARD_PENDING, relay_chn_get_state());
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
@@ -132,7 +137,7 @@ TEST_CASE("Tilt Reverse to Run Reverse transition with inertia", "[relay_chn][ti
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_REVERSE, relay_chn_get_state());
 
     // 2. Issue run reverse command
-    relay_chn_run_reverse(); 
+    relay_chn_run_reverse();
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE_PENDING, relay_chn_get_state());
     vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state());
@@ -149,13 +154,13 @@ TEST_CASE("Tilt Forward to Run Reverse transition without inertia", "[relay_chn]
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_FORWARD, relay_chn_get_state());
 
     // 2. Issue run reverse command (opposite direction)
-    relay_chn_run_reverse(); 
+    relay_chn_run_reverse();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state());
 }
 
 // Test stopping from a tilt state (no inertia for stop command itself)
-// Scenario: RELAY_CHN_STATE_TILT_FORWARD -> (relay_chn_stop) -> RELAY_CHN_STATE_STOPPED -> (inertia) -> RELAY_CHN_STATE_IDLE
+// Scenario: RELAY_CHN_STATE_TILT_FORWARD -> (relay_chn_tilt_stop) -> RELAY_CHN_STATE_IDLE
 TEST_CASE("Tilt to Stop transition without immediate inertia for stop", "[relay_chn][tilt][inertia]")
 {
     // Prepare channel by running forward first to set last_run_cmd, then tilt
@@ -165,7 +170,7 @@ TEST_CASE("Tilt to Stop transition without immediate inertia for stop", "[relay_
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_FORWARD, relay_chn_get_state());
 
     // 2. Issue stop command
-    relay_chn_stop();
+    relay_chn_tilt_stop();
     // Stop command should apply immediately, setting state to FREE since last state was tilt.
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_IDLE, relay_chn_get_state());
@@ -177,7 +182,8 @@ TEST_CASE("relay_chn_tilt_auto chooses correct direction", "[relay_chn][tilt][au
     // Prepare FORWARD
     prepare_channel_for_tilt(RELAY_CHN_CMD_FORWARD);
     relay_chn_tilt_auto();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_FORWARD, relay_chn_get_state());
     relay_chn_tilt_stop();
     vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
@@ -185,7 +191,8 @@ TEST_CASE("relay_chn_tilt_auto chooses correct direction", "[relay_chn][tilt][au
     // Prepare REVERSE
     prepare_channel_for_tilt(RELAY_CHN_CMD_REVERSE);
     relay_chn_tilt_auto();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_REVERSE, relay_chn_get_state());
 }
 
@@ -205,6 +212,17 @@ TEST_CASE("relay_chn_tilt_set_sensitivity and get", "[relay_chn][tilt][sensitivi
     TEST_ASSERT_EQUAL_UINT8(42, relay_chn_tilt_get_sensitivity());
 }
 
+TEST_CASE("relay_chn_tilt_get_default_sensitivity returns correct value", "[relay_chn][tilt][sensitivity]")
+{
+    // The default sensitivity is calculated from default timing values.
+    // Default run time: 15ms, Min run time: 50ms, Max run time: 10ms.
+    // Formula: ( (DEFAULT_RUN - MIN_RUN) * 100 ) / (MAX_RUN - MIN_RUN)
+    // ( (15 - 50) * 100 ) / (10 - 50) = (-35 * 100) / -40 = -3500 / -40 = 87.5
+    // As integer arithmetic, this is 87.
+    uint8_t expected_sensitivity = 87;
+    TEST_ASSERT_EQUAL_UINT8(expected_sensitivity, relay_chn_tilt_get_default_sensitivity());
+}
+
 // Test sensitivity upper boundary
 TEST_CASE("relay_chn_tilt_set_sensitivity handles upper boundary", "[relay_chn][tilt][sensitivity]")
 {
@@ -220,31 +238,25 @@ TEST_CASE("relay_chn_tilt_set_sensitivity handles upper boundary", "[relay_chn][
 // Test tilt counter logic: forward x3, reverse x3, extra reverse fails
 TEST_CASE("tilt counter logic: forward and reverse consumption", "[relay_chn][tilt][counter]")
 {
+// Tilt execution time at 100% sensitivity in milliseconds (10 + 90)
+#define TEST_TILT_EXECUTION_TIME_MS 100
+
     prepare_channel_for_tilt(RELAY_CHN_CMD_FORWARD);
 
     // Tilt forward 3 times
-    for (int i = 0; i < 3; ++i) {
-        relay_chn_tilt_forward();
-        vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-        TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_FORWARD, relay_chn_get_state());
-        relay_chn_tilt_stop();
-        vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-    }
+    relay_chn_tilt_forward();
+    vTaskDelay(pdMS_TO_TICKS(TEST_TILT_EXECUTION_TIME_MS * 3 + TEST_DELAY_MARGIN_MS));
+    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_FORWARD, relay_chn_get_state());
+    relay_chn_tilt_stop();
 
     // Now tilt reverse 3 times (should succeed)
-    for (int i = 0; i < 3; ++i) {
-        relay_chn_tilt_reverse();
-        vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-        if (i < 3) {
-            TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_REVERSE, relay_chn_get_state());
-            relay_chn_tilt_stop();
-            vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
-        }
-    }
-
-    // Extra reverse tilt should fail (counter exhausted)
     relay_chn_tilt_reverse();
-    vTaskDelay(pdMS_TO_TICKS(TEST_DELAY_MARGIN_MS));
+    // Let it execute one time
+    vTaskDelay(pdMS_TO_TICKS(TEST_TILT_EXECUTION_TIME_MS));
+    TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_REVERSE, relay_chn_get_state());
+    // Let it execute 2 at least, or more
+    vTaskDelay(pdMS_TO_TICKS(TEST_TILT_EXECUTION_TIME_MS * 3));
+    
     // Should not enter TILT_REVERSE, should remain FREE or STOPPED
     relay_chn_state_t state = relay_chn_get_state();
     TEST_ASSERT(state != RELAY_CHN_STATE_TILT_REVERSE);
@@ -272,12 +284,12 @@ TEST_CASE("run command during active tilt cycle stops tilt", "[relay_chn][tilt][
     // Set a known sensitivity for predictable timing.
     // For sensitivity=50, move_time=30ms, pause_time=270ms.
     relay_chn_tilt_set_sensitivity(50);
-    const uint32_t move_time_ms = 30;
 
     // --- Test interrupting during MOVE step ---
     prepare_channel_for_tilt(RELAY_CHN_CMD_FORWARD);
     relay_chn_tilt_forward();
-    vTaskDelay(pdMS_TO_TICKS(move_time_ms / 2)); // Wait for half of the move time
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_FORWARD, relay_chn_get_state());
 
     // Interrupt with run_reverse while in the MOVE part of the cycle
@@ -287,9 +299,14 @@ TEST_CASE("run command during active tilt cycle stops tilt", "[relay_chn][tilt][
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_REVERSE, relay_chn_get_state());
 
     // --- Test interrupting during PAUSE step ---
-    prepare_channel_for_tilt(RELAY_CHN_CMD_FORWARD);
+    relay_chn_stop(); // Stop the reverse run
+    // Wait the channel to be IDLE
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
+
+    prepare_channel_for_tilt(RELAY_CHN_CMD_FORWARD); // Prepare channel again
     relay_chn_tilt_forward();
-    vTaskDelay(pdMS_TO_TICKS(move_time_ms + TEST_DELAY_MARGIN_MS)); // Wait past MOVE, into PAUSE
+    // Should incur inertia timer
+    vTaskDelay(pdMS_TO_TICKS(CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS + TEST_DELAY_MARGIN_MS));
     TEST_ASSERT_EQUAL(RELAY_CHN_STATE_TILT_FORWARD, relay_chn_get_state());
 
     // Interrupt with run_forward while in the PAUSE part of the cycle

test_apps/sdkconfig.defaults

@@ -1,6 +1,9 @@
 # Disable task WDT for tests
 CONFIG_ESP_TASK_WDT_INIT=n
 
+CONFIG_LOG_MAXIMUM_LEVEL_DEBUG=y
+CONFIG_LOG_MAXIMUM_LEVEL=4
+
 # Relay Channel Driver Default Configuration for Testing
 # Keep this as short as possible for tests
 CONFIG_RELAY_CHN_OPPOSITE_INERTIA_MS=200