ESP Matter + Arduino as IDF Component Light example

idf_component.yml

@@ -97,3 +97,4 @@ dependencies:
 examples:
   - path: ./idf_component_examples/hello_world
   - path: ./idf_component_examples/hw_cdc_hello_world
+  - path: ./idf_component_examples/esp_matter_light

idf_component_examples/esp_matter_light/CMakeLists.txt

@@ -0,0 +1,28 @@
+# The following 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(PROJECT_VER "1.0")
+set(PROJECT_VER_NUMBER 1)
+
+# This should be done before using the IDF_TARGET variable.
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+
+project(arduino_managed_component_light)
+
+# WARNING: This is just an example for using key for decrypting the encrypted OTA image
+# Please do not use it as is.
+if(CONFIG_ENABLE_ENCRYPTED_OTA)
+    target_add_binary_data(light.elf "esp_image_encryption_key.pem" TEXT)
+endif()
+
+if(CONFIG_IDF_TARGET_ESP32C2)
+    include(relinker)
+endif()
+
+idf_build_set_property(CXX_COMPILE_OPTIONS "-std=gnu++17;-Os;-DCHIP_HAVE_CONFIG_H" APPEND)
+idf_build_set_property(C_COMPILE_OPTIONS "-Os" APPEND)
+# For RISCV chips, project_include.cmake sets -Wno-format, but does not clear various
+# flags that depend on -Wformat
+idf_build_set_property(COMPILE_OPTIONS "-Wno-format-nonliteral;-Wno-format-security" APPEND)
+

idf_component_examples/esp_matter_light/README.md

@@ -0,0 +1,88 @@
+| Supported Targets | ESP32-S3 | ESP32-C3 | ESP32-C6 |
+| ----------------- | -------- | -------- | -------- |
+
+
+# Managed Component Light
+
+This example is configured by default to work with the ESP32-S3, which has the RGB LED GPIO set as pin 48 and the BOOT button on GPIO 0.
+
+This example creates a Color Temperature Light device using the esp_matter component downloaded from the [Espressif Component Registry](https://components.espressif.com/) instead of an extra component locally, so the example can work without setting up the esp-matter environment.
+
+See the [docs](https://docs.espressif.com/projects/esp-matter/en/latest/esp32/developing.html) for more information about building and flashing the firmware.
+
+The code is based on the Arduino API and uses Arduino as an IDF Component.
+
+## How to use it
+
+Once the device runs for the first time, it must be commissioned to the Matter Fabric of the available Matter Environment.  
+Possible Matter Environments are:  
+- Amazon Alexa
+- Google Home Assistant
+- Apple Home
+- Open Source Home Assistant
+
+There is no QR Code to be used when the Smartphone APP wants to add the Matter Device.  
+Please enter the code manually: `34970112332`
+
+The devboard has a built-in LED that will be used as the Matter Light.  
+The default setting of the code uses pin 48 for the ESP32-S3.  
+Please change it in `main/matter_accessory_driver.h` or in the `sdkconfig.defaults.<SOC>` file.
+
+## LED Status and Factory Mode
+
+The WS2812b built-in LED will turn purple as soon as the device is flashed and runs for the first time.  
+The purple color indicates that the Matter Accessory has not been commissioned yet.  
+After using a Matter provider Smartphone APP to add a Matter device to your Home Application, it may turn orange to indicate that it has no WiFi connection.
+
+Once it connects to the WiFi network, the LED will turn white to indicate that Matter is working and the device is connected to the Matter Environment.
+Please note that Matter over WiFi using an ESP32 device will connect to a 2.4GHz WiFi SSID, therefore the Commissioner APP Smartphone shall be connected to this SSID.
+
+The Matter and WiFi configuration will be stored in NVS to ensure that it will connect to the Matter Fabric and WiFi Network again once it is reset.
+
+The Matter Smartphone APP will control the light state (ON/OFF), temperature (Warm/Cold White), and brightness.
+
+## On Board Light toggle button
+
+The built-in BOOT button will toggle On/Off and replicate the new state to the Matter Environment, making it visible in the Matter Smartphone APP as well.
+
+## Returning to the Factory State
+
+Holding the BOOT button pressed for more than 10 seconds and then releasing it will erase all Matter and WiFi configuration, forcing it to reset to factory state. After that, the device needs to be commissioned again. Previous setups done in the Smartphone APP won't work again; therefore, the virtual device shall be removed from the APP.
+
+## Building the Application using WiFi and Matter
+
+Use ESP-IDF 5.1.4 from https://github.com/espressif/esp-idf/tree/release/v5.1  
+This example has been tested with Arduino Core 3.0.4
+
+The project will download all necessary components, inluding the Arduino Core.  
+Run `idf.py SDKCONFIG_DEFAULTS="sdkconfig.defaults.<SOC>.idf" -p <PORT> flash monitor`
+
+Example for ESP32-S3/Linux|MacOS:  
+`idf.py SDKCONFIG_DEFAULTS="sdkconfig.defaults.esp32s3" -p /dev/ttyACM0 flash monitor`
+Example for ESP32-C3/Windows:  
+`idf.py -D SDKCONFIG_DEFAULTS="sdkconfig.defaults.esp32c3" -p com3 flash monitor`
+
+It may be necessary to delete some folders and files  before running `idf.py`   
+Linux/MacOS: `rm -rf build managed_components sdkconfig dependencies.lock`  
+Windows: `rmdir /s/q build managed_components` and `del sdkconfig dependencies.lock`
+
+There is a configuration file for these SoC: esp32s3, esp32c3, esp32c6.
+Those are the tested devices that have a WS2812 RGB LED and can run BLE, WiFi and Matter.
+
+In case it is necessary to change the Button Pin or the REG LED Pin, please use the `menuconfig`
+`idf.py menuconfig` and change the Menu Option `Light Matter Accessory`
+
+## Using OpenThread with Matter
+
+This is possible with the ESP32-C6.  
+It is neessasy to have a Thread Border Routed in the Matter Environment. Check you matter hardware provider.  
+In order to build the application that will use Thread Networking instead of WiFi, please execute:
+
+Example for ESP32-S3/Linux|MacOS:  
+`idf.py SDKCONFIG_DEFAULTS="sdkconfig.defaults.c6_thread" -p /dev/ttyACM0 flash monitor`
+Example for ESP32-C3/Windows:  
+`idf.py -D SDKCONFIG_DEFAULTS="sdkconfig.defaults.c6_thread" -p com3 flash monitor`
+
+It may be necessary to delete some folders and files before running `idf.py`  
+Linux/MacOS: `rm -rf build managed_components sdkconfig dependencies.lock`  
+Windows: `rmdir /s/q build managed_components` and `del sdkconfig dependencies.lock`

idf_component_examples/esp_matter_light/main/CMakeLists.txt

@@ -0,0 +1,5 @@
+idf_component_register(SRC_DIRS          "."
+                       INCLUDE_DIRS      ".")
+
+set_property(TARGET ${COMPONENT_LIB} PROPERTY CXX_STANDARD 17)
+target_compile_options(${COMPONENT_LIB} PRIVATE "-DCHIP_HAVE_CONFIG_H")

idf_component_examples/esp_matter_light/main/Kconfig.projbuild

@@ -0,0 +1,102 @@
+menu "Light Matter Accessory"
+    menu "On Board Light ON/OFF Button"
+        config BUTTON_PIN
+            int 
+            prompt "Button 1 GPIO"
+            default ENV_GPIO_BOOT_BUTTON
+            range -1 ENV_GPIO_IN_RANGE_MAX
+            help
+                The GPIO pin for button that will be used to turn on/off the Matter Light. It shall be connected to a push button. It can use the BOOT button of the development board.
+    endmenu
+
+
+    menu "LEDs"
+        config WS2812_PIN
+            int 
+            prompt "WS2812 RGB LED GPIO"
+            default ENV_GPIO_RGB_LED
+            range -1 ENV_GPIO_OUT_RANGE_MAX
+            help
+                The GPIO pin for the Matter Light that will be driven by RMT. It shall be connected to one single WS2812 RGB LED.
+    endmenu
+
+    # TARGET CONFIGURATION
+    if IDF_TARGET_ESP32C3
+        config ENV_GPIO_RANGE_MIN
+            int
+            default 0
+
+        config ENV_GPIO_RANGE_MAX
+            int
+            default 19
+            # GPIOs 20/21 are always used by UART in examples
+
+        config ENV_GPIO_IN_RANGE_MAX
+            int
+            default ENV_GPIO_RANGE_MAX
+
+        config ENV_GPIO_OUT_RANGE_MAX
+            int
+            default ENV_GPIO_RANGE_MAX
+
+        config ENV_GPIO_BOOT_BUTTON
+            int
+            default 9
+
+        config ENV_GPIO_RGB_LED
+            int
+            default 8
+    endif
+    if IDF_TARGET_ESP32C6
+        config ENV_GPIO_RANGE_MIN
+            int
+            default 0
+
+        config ENV_GPIO_RANGE_MAX
+            int
+            default 30
+            # GPIOs 16/17 are always used by UART in examples
+
+        config ENV_GPIO_IN_RANGE_MAX
+            int
+            default ENV_GPIO_RANGE_MAX
+
+        config ENV_GPIO_OUT_RANGE_MAX
+            int
+            default ENV_GPIO_RANGE_MAX
+
+        config ENV_GPIO_BOOT_BUTTON
+            int
+            default 9
+
+        config ENV_GPIO_RGB_LED
+            int
+            default 8
+    endif
+    if IDF_TARGET_ESP32S3
+        config ENV_GPIO_RANGE_MIN
+            int
+            default 0
+
+        config ENV_GPIO_RANGE_MAX
+            int
+            default 48
+
+        config ENV_GPIO_IN_RANGE_MAX
+            int
+            default ENV_GPIO_RANGE_MAX
+
+        config ENV_GPIO_OUT_RANGE_MAX
+            int
+            default ENV_GPIO_RANGE_MAX
+
+        config ENV_GPIO_BOOT_BUTTON
+            int
+            default 0
+
+        config ENV_GPIO_RGB_LED
+            int
+            default 48
+    endif
+
+endmenu