Platform Atmel megaAVR: 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.

Microcontroller ATTINY817
Frequency 16MHz
Flash 8KB
RAM 512B
Vendor Microchip


Please use ATtiny817 ID for board option in “platformio.ini” (Project Configuration File):

platform = atmelmegaavr
board = ATtiny817

You can override default ATtiny817 settings per build environment using board_*** option, where *** is a JSON object path from board manifest ATtiny817.json. For example, board_build.mcu, board_build.f_cpu, etc.

platform = atmelmegaavr
board = ATtiny817

; change microcontroller
board_build.mcu = attiny817

; change MCU frequency
board_build.f_cpu = 16000000L


Debugging currently does not support ATtiny817 board.


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