Compatibility: blue 0.91 inch OLED module is designed to display graphic information and text information directly on your microcontroller project; Compatible with for Arduino Mega, Raspberry pi, 51 MCU, STIM 32, etc.Product information: resolution is 128x64; View angle is more than 160 degrees; Supporting voltage is from 3.3V to 5V DC; Power consumption during normal operation is 0.04W, full screen lit is 0.08WDriver and communication: embedded driver IC is SSD1306; Communication is IIC/ I2C interface, only needs 2 I/O ports; Compatible with MMDVM, Pi-Star, and compatible with Raspberry piSelf-luminous design: the OLED display module is self-luminous, so that no backlight is required; It features high contrast, bright and crisp dots, which is convenient for you to read tiny fontsCreate fonts: there are no fonts embedded in the OLED controller, so users can use the font generation software to create the fontsColour:BlueMaterial:PC + metalPackage Contents:10 x OLED Display modulesOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.