0.96 inch,Resolution: 128 x 64, View angle: > 160°, Support voltage: 3.3V-5V DC, Power consumption: 0.04W during normal operation, full screen lit 0.08W Embedded Driver IC: SSD1306. Communication: I2C/IIC Interface, only need two I / O ports It compatibles with R3 board and Mega, Raspberry pi, 51 MCU, STIM 32, etc. No backlight is required, and the display unit can be self-luminous. It has ultra-high contrast, bright and clear dots, and it is easy to read even small fonts There are no fonts embedded in the OLED controller, users can create fonts through font generation software.