Adafruit_SSD1306

Compatibility

MCU	Tested Works	Doesn't Work	Not Tested	Notes
Atmega328 @ 16MHz			X	I2C 128x32 works!
Atmega328 @ 12MHz			X	I2C 128x32 works!
Atmega32u4 @ 16MHz			X	I2C 128x32 works!
Atmega32u4 @ 8MHz			X	I2C 128x32 works!
ESP8266		X		OLED is blank but serial print works.
Atmega2560 @ 16MHz			X	I2C 128x32 works!
ATSAM3X8E			X	I2C 128x32 works!
ATSAM21D			X	I2C 128x32 works!
ATtiny85 @ 16MHz		X
ATtiny85 @ 8M		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