Atmel megaAVR

Configuration:platform = atmelmegaavr

8-bit MCUs Built for Real-time Control with Core Independent Peripherals combining intelligent hardware peripherals along with the low-power capability of an AVR core, megaAVR microcontrollers (MCUs) broaden the effectiveness of your real-time control systems.

For more detailed information please visit vendor site.

Stable and upstream versions

You can switch between stable releases of Atmel megaAVR development platform and the latest upstream version using platform option in “platformio.ini” (Project Configuration File) as described below.


; Latest stable version
platform = atmelmegaavr
board = ...

; Custom stable version
platform = atmelmegaavr@x.y.z
board = ...


platform =
board = ...


Name Description
framework-arduino-megaavr Arduino Wiring-based Framework for Microchip megaAVR microcontrollers
tool-avrdude-megaavr AVRDUDE is a utility to download/upload/manipulate the ROM and EEPROM contents of megaAVR microcontrollers
toolchain-atmelavr GCC Toolchain for Microchip AVR microcontrollers


Linux Users:

Windows Users:

Please check that you have a correctly installed USB driver from board manufacturer


Name Description
Arduino Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences




Name Debug MCU Frequency Flash RAM
Arduino Nano Every No ATMEGA4809 16MHz 47.50KB 6KB
Arduino Uno WiFi Rev2 No ATMEGA4809 16MHz 47.50KB 6KB