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Arduino esp32

Arduino core for the ESP32 family of SoCs

From espressif·Updated May 31, 2026·View on GitHub·

- [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) The project is written primarily in C++, distributed under the GNU Lesser General Public License v2.1 license, first published in 2016. It has gained significant community traction with 16,865 stars and 7,875 forks on GitHub. Key topics include: arduino, esp-idf, esp32.

Latest release: 4.0.0-alpha1Arduino Pre-Release v4.0.0-alpha1 based on ESP-IDF v6.0.1+
May 27, 2026View Changelog →

Arduino core for the ESP32 family of SoCs

Build Status
Verbose Build Status
External Libraries Test
Runtime Tests

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Contents

Development Status

Latest Stable Release

Release Version
Release Date
Downloads

Latest Development Release

Release Version
Release Date
Downloads

Development Planning

Our Development is fully tracked on this public Roadmap 🎉

For even more information you can join our Monthly Community Meetings 🔔.

Documentation

You can use the Arduino-ESP32 Online Documentation to get all information about this project.


Migration guide from version 2.x to 3.x is available here.


APIs compatibility with ESP8266 and Arduino-CORE (Arduino.cc) is explained here.


Supported Chips

Here are the ESP32 series supported by the Arduino-ESP32 project:

SoCStableDevelopmentDatasheet
ESP32YesYesESP32
ESP32-C3YesYesESP32-C3
ESP32-C5YesYesESP32-C5
ESP32-C6YesYesESP32-C6
ESP32-H2YesYesESP32-H2
ESP32-P4YesYesESP32-P4
ESP32-S2YesYesESP32-S2
ESP32-S3YesYesESP32-S3

[!NOTE]
ESP32-C2 and ESP32-C61 are also supported by Arduino-ESP32 but require using Arduino as an ESP-IDF component or rebuilding the static libraries.
For more information, see the Arduino as an ESP-IDF component documentation or the
Lib Builder documentation, respectively.

For more details visit the supported chips documentation page.

Decoding exceptions

You can use 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 labeled as Type: For reference.

Finally, if you are sure no one else had the issue, follow the Issue template or Feature request template while reporting any new Issue.

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.
For more information and how to add your library to the test see external library testing in the documentation.

Contributing

We welcome contributions to the Arduino ESP32 project!

See contributing 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.

Contributors

Showing top 12 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from espressif/arduino-esp32 via the GitHub API.Last fetched: 5/31/2026