Description: Name: Oled Display Driver IC: SSD1306 Size: 0.91 inch OLED Resolution: 128 x 32 IIC interface Display color: blue or white or yellow Pin description: GND: power ground; VCC: power + (DC 3.3 ~5v); SCL: clock line; SDA: data line. Packing list: 1 x Oled Display Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.  Manual measuring,please allow 1~3mm error,thank you.