This is an E-Ink display module for Raspberry Pi, 2.13inch, 250x122 resolution, with embedded controller, communicating via SPI interface. Due to low power consumption, wide Angle, power failure still can clear display, etc, it is an ideal choice for applications such as shelf label, industrial instrument, and so on Features: No backlight, keeps displaying last content for a long time even when power down Ultra low power consumption, basically power is only required for refreshing With four buttons, convenient extended application Suitable for Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+ SPI interface, for connecting with controller boards like for Raspberry Pi, for Nucleo, etc. Board level conversion chip, compatible with 3.3 V and 5 V microcontroller interface Specification: Operating voltage: 3.3 V / 5 V Communication interface: SPI Dot pitch: 0.194 x 0.194 External dimension: 65*30.2mm/2.6*1.2in Display size: 48.55*23.71mm/1.9*0.9in Resolution: 250x122 Display color: black, white Gray level: 2 Local refresh: 0.3s Full refresh time: 6 s Refresh power: 26.4mW(typ.) Standby power consumption: < 0.017 mW Viewing Angle: > 170° Weight: Approx.27g/1oz The interface description: VCC: 3.3 V / 5 V GND: GND DIN: SPI communication MOSI pin CLK: SPI communication SCK pin CS: SPI chip selection pin(low level is effective) DC: data/command control pin (high level indicates data, low level indicates command) RST: external reset pin (low level reset) BUSY : busy state output pin (low level indicates BUSY) Package list: 1 x 2.13inch e-paper Module 1 x ribbon cable 1set x installation accessories 1、No backlight, keeps displaying last content for a long time even when power down 2、Ultra low power consumption, basically power is only required for refreshing 3、With four buttons, convenient extended application 4、Suitable for Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+ 5、SPI interface, for connecting with controller boards like for Raspberry Pi, for Nucleo, etc.