Product DescriptionDescription:  OLED display, no need backlight, self-illumination.The display performance is better than the traditional LCD display, also lower consumption.Specifications: Driver IC: SSD1306Size: 0.91 inch OLEDResolution: 128 x 32Size: 38 * 12 mmInterface Type: IIC interfaceDisplay Color: WhitePin Description:GND: Power GroundVCC: Power + (DC 3.3 ~5v)Operating temperature:-40 ~