examples:

- path: ../idf_component_examples/

cmake_minimum_required(VERSION 3.16)

include($ENV{IDF_PATH}/tools/cmake/project.cmake)

project(main)

| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 |

| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- |

This is the simplest buildable example made to be used as a template for new projects running Arduino-esp32 as an ESP-IDF component.

See [Arduino-esp32](https://components.espressif.com/components/espressif/arduino-esp32) in ESP Registry.

To create a ESP-IDF project from this example with the latest relase of Arduino-esp32, you can simply run command: `idf.py create-project-from-example "espressif/arduino-esp32:hello_world"`.

ESP-IDF will download all dependencies needed from the component registry and setup the project for you.

If you want to use cloned Arduino-esp32 repository, you can build this example directly.

Go to the example folder `arduino-esp32/idf_component_examples/Hello_world`.

First you need to comment line 6 `pre_release: true` in examples `/main/idf_component.yml`.

Then just run command: `idf.py build`.

The project **Hello_world** contains one source file in C++ language [main.cpp](main/main.cpp). The file is located in folder [main](main).

ESP-IDF projects are built using CMake. The project build configuration is contained in `CMakeLists.txt`

files that provide set of directives and instructions describing the project's source files and targets

(executable, library, or both).

Below is short explanation of remaining files in the project folder.

In the project create folder `components/` and clone the library there.

In the library folder create new CMakeLists.txt file, add lines shown below to the file and edit the SRCS to match the library source files.

Below is structure of the project folder with the Arduino libraries.

idf_component_register(SRCS "main.cpp"

INCLUDE_DIRS ".")

dependencies:

espressif/arduino-esp32:

version: '*'

override_path: '../../../'

pre_release: true

#include "Arduino.h"

void setup(){

Serial.begin(115200);

}

void loop(){

Serial.println("Hello world!");

delay(1000);

}

#

# Arduino ESP32

#

CONFIG_AUTOSTART_ARDUINO=y

# end of Arduino ESP32

#

# FREERTOS

#

CONFIG_FREERTOS_HZ=1000

# end of FREERTOS

# end of Component config