Compatibility

MCU | Tested Works | Doesn't Work | Not Tested | Notes ---------------— | :-------—: | :-------—: | :------—: | --— Atmega328 @ 16MHz | X | | | Atmega328 @ 12MHz | X | | | Atmega32u4 @ 16MHz | X | | | Atmega32u4 @ 8MHz | X | | | ESP8266 | X | | | Atmega2560 @ 16MHz | X | | | ATSAM3X8E | X | | | ATSAM21D | X | | | ATtiny85 @ 16MHz | X | | | ATtiny85 @ 8MHz | X | | | Intel Curie @ 32MHz | X | | | STM32F2 | | | X |

ATmega328 @ 16MHz : Arduino UNO, Adafruit Pro Trinket 5V, Adafruit Metro 328, Adafruit Metro Mini
ATmega328 @ 12MHz : Adafruit Pro Trinket 3V
ATmega32u4 @ 16MHz : Arduino Leonardo, Arduino Micro, Arduino Yun, Teensy 2.0
ATmega32u4 @ 8MHz : Adafruit Flora, Bluefruit Micro
ESP8266 : Adafruit Huzzah
ATmega2560 @ 16MHz : Arduino Mega
ATSAM3X8E : Arduino Due
ATSAM21D : Arduino Zero, M0 Pro
ATtiny85 @ 16MHz : Adafruit Trinket 5V
ATtiny85 @ 8MHz : Adafruit Gemma, Arduino Gemma, Adafruit Trinket 3V