This repository contains the source code and configuration files of the Arduino Core for Atmel's AVR microcontroller used on the Arduino Yún, Uno, Uno WiFi, Diecimila, Nano, Mega, MegaADK, Leonardo, Leonardo Ethernet, Micro, Esplora, Min, Ethernet, Fio, BT, LilyPadUSB, Lilypad, Pro, ATMegaNG, Robot Control, Robot Motor, Gemma, Yún Mini and Industrial 101.

This core comes preinstalled by default in the Arduino IDE. If you need to explicitly install the core or update it, Just open the "Boards Manager" under Tools --> Board --> Boards Manager and install the package called:

"Arduino AVR Boards"

This core can be installed on arduino-cli with the command:

$ arduino-cli core install arduino:avr

There is a dedicated section of the Arduino Forum for general discussion and project assistance:

https://forum.arduino.cc/index.php?board=1.0

Before posting, please check the other sections of the forum to make sure if your query is better suited for another section of the forum.

If you find a bug you can submit an issue here on github:

https://github.com/arduino/ArduinoCore-avr/issues

Before posting a new issue, please check if the same problem has been already reported by someone else to avoid duplicates.

Contributions are always welcome. The preferred way to receive code contribution is by submitting a Pull Request on github.