Feature: *Use OLED technology to experience outstanding display performance. Compared with traditional LCD displays, there is no need to be backlight, self -refresh and lower consumption. *Our module has a high -quality drive IC, which is reliable. *Enjoy the clear and detailed visual effects of 128x32 resolution and IIC interface display. *It is easy to install 4 pins -GND, VCC, SCL and SDA and DC 3.3 ~ 5V. *Blue and white display options. Meet your display requirements. Specification: Model: 0.91 inch OLED Color: blue light, white light Resolution: 128x32 Drive IC: Power supply voltage: 3.3V-5V Work temperature: -40 ° -80 ° Interface definition: 1 foot: GND (ground line) 2 foot: VCC (power line) 3 feet: SCL (clock line) 4 feet: SDA (data cable) Package included: 1*OLED display module Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Made of standard material, quality assurance and practicality. Perfect function, bring you a wonderful experience. Every customer is entitled to a 30-day refund or replacement for damage/quality issues. If you have any questions, please feel free to contact us and we will solve it for you. 0.91 Inch 128X32 Blue White Iic Communication Lcd Oled Display Module 3.3V-5V