espressif/arduino-esp32

# Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 ![Build Status](https://github.com/espressif/arduino-esp32/workflows/ESP32%20Arduino%20CI/badge.svg) [![External Libraries Test](https://github.com/espressif/arduino-esp32/actions/workflows/lib.yml/badge.svg?branch=master&event=schedule)](https://github.com/espressif/arduino-esp32/blob/gh-pages/LIBRARIES_TEST.md) [![Hardware Tests](https://github.com/espressif/arduino-esp32/actions/workflows/hil.yml/badge.svg?branch=master&event=schedule)](https://github.com/espressif/arduino-esp32/actions/workflows/hil.yml?query=event%3Aschedule) ### Need help or have a question? Join the chat at [Gitter](https://gitter.im/espressif/arduino-esp32) or [open a new Discussion](https://github.com/espressif/arduino-esp32/discussions) ## Contents - [Development Status](#development-status) - [Development Planning](#development-planning) - [Documentation](#documentation) - [Supported Chips](#supported-chips) - [Decoding exceptions](#decoding-exceptions) - [Issue/Bug report template](#issuebug-report-template) - [Contributing](#contributing) ### Development Status Latest Stable Release [![Release Version](https://img.shields.io/github/release/espressif/arduino-esp32.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/) [![Release Date](https://img.shields.io/github/release-date/espressif/arduino-esp32.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/) [![Downloads](https://img.shields.io/github/downloads/espressif/arduino-esp32/latest/total.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/) Latest Development Release [![Release Version](https://img.shields.io/github/release/espressif/arduino-esp32/all.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/) [![Release Date](https://img.shields.io/github/release-date-pre/espressif/arduino-esp32.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/) [![Downloads](https://img.shields.io/github/downloads-pre/espressif/arduino-esp32/latest/total.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/) ### Development Planning Our Development is fully tracked on this public **[Roadmap 🎉](https://github.com/orgs/espressif/projects/3)** For even more information you can join our **[Monthly Community Meetings 🔔](https://github.com/espressif/arduino-esp32/discussions/categories/monthly-community-meetings).** ### Documentation You can use the [Arduino-ESP32 Online Documentation](https://docs.espressif.com/projects/arduino-esp32/en/latest/) to get all information about this project. --- **Migration guide from version 2.x to 3.x is available [here](https://docs.espressif.com/projects/arduino-esp32/en/latest/migration_guides/2.x_to_3.0.html).** --- **APIs compatibility with ESP8266 and Arduino-CORE (Arduino.cc) is explained [here](https://docs.espressif.com/projects/arduino-esp32/en/latest/libraries.html#apis).** --- * [Getting Started](https://docs.espressif.com/projects/arduino-esp32/en/latest/getting_started.html) * [Installing (Windows, Linux and macOS)](https://docs.espressif.com/projects/arduino-esp32/en/latest/installing.html) * [Libraries](https://docs.espressif.com/projects/arduino-esp32/en/latest/libraries.html) * [Arduino as an ESP-IDF component](https://docs.espressif.com/projects/arduino-esp32/en/latest/esp-idf_component.html) * [FAQ](https://docs.espressif.com/projects/arduino-esp32/en/latest/faq.html) * [Troubleshooting](https://docs.espressif.com/projects/arduino-esp32/en/latest/troubleshooting.html) ### Supported Chips Here are the ESP32 series supported by the Arduino-ESP32 project: | **SoC** | **Stable** | **Development** | **Datasheet** | |----------|:----------:|:---------------:|:-------------------------------------------------------------------------------------------------:| | ESP32 | Yes | Yes | [ESP32](https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf) | | ESP32-S2 | Yes | Yes | [ESP32-S2](https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf) | | ESP32-C3 | Yes | Yes | [ESP32-C3](https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf) | | ESP32-S3 | Yes | Yes | [ESP32-S3](https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf) | | ESP32-C6 | No | Yes | [ESP32-C6](https://www.espressif.com/sites/default/files/documentation/esp32-c6_datasheet_en.pdf) | | ESP32-H2 | No | Yes | [ESP32-H2](https://www.espressif.com/sites/default/files/documentation/esp32-h2_datasheet_en.pdf) | For more details visit the [supported chips](https://docs.espressif.com/projects/arduino-esp32/en/latest/getting_started.html#supported-soc-s) documentation page. ### Decoding exceptions You can use [EspExceptionDecoder](https://github.com/me-no-dev/EspExceptionDecoder) to get meaningful call trace. ### Issue/Bug report template Before reporting an issue, make sure you've searched for similar one that was already created. Also make sure to go through all the issues labelled as [Type: For reference](https://github.com/espressif/arduino-esp32/issues?q=is%3Aissue+label%3A%22Type%3A+For+reference%22+). Finally, if you are sure no one else had the issue, follow the **Issue template** or **Feature request template** while reporting any [new Issue](https://github.com/espressif/arduino-esp32/issues/new/choose). ### External libraries compilation test We have set-up CI testing for external libraries for ESP32 Arduino core. You can check test results in the file [LIBRARIES_TEST](https://github.com/espressif/arduino-esp32/blob/gh-pages/LIBRARIES_TEST.md). For more information and how to add your library to the test see [external library testing](https://docs.espressif.com/projects/arduino-esp32/en/latest/external_libraries_test.html) in the documentation. ### Contributing We welcome contributions to the Arduino ESP32 project! See [contributing](https://docs.espressif.com/projects/arduino-esp32/en/latest/contributing.html) in the documentation for more information on how to contribute to the project. > We would like to have this repository in a polite and friendly atmosphere, so please be kind and respectful to others. For more details, look at [Code of Conduct](https://github.com/espressif/arduino-esp32/blob/master/CODE_OF_CONDUCT.md).

| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 | | ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- | # _Hello world example_ 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. ## How to use example 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`. ## Example folder contents 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. ``` ├── CMakeLists.txt ├── main │ ├── CMakeLists.txt │ ├── idf_component.yml │ └── main.cpp └── README.md This is the file you are currently reading ``` ## How to add Arduino libraries 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. ``` idf_component_register(SRCS "user_library.cpp" "another_source.c" INCLUDE_DIRS "." REQUIRES arduino-esp32 ) ``` Below is structure of the project folder with the Arduino libraries. ``` ├── CMakeLists.txt ├── components │ ├── user_library │ │ ├── CMakeLists.txt This needs to be added │ │ ├── ... ├── main │ ├── CMakeLists.txt │ ├── idf_component.yml │ └── main.cpp └── README.md This is the file you are currently reading ```

readme

readme of Hello_world example

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License: LGPL-2.1

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Hello_world

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