4.2-inch electronic paper 400x300 4.2-inch electronic ink display module without backlight wide-angle SPI interface, custom PCB

  DESCRIPTION   400x300, 4.2inch E-Ink display module, SPI interface Overview This is an E-Ink display module, 4.2inch, 400x300 resolution, with embedded controller, communicating via SPI interface. Due to the advantages like ultra low power consumption, wide viewing angle, great effect under sunlight, 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  SPI interface, for connecting with controller boards like Raspberry Pi/Ard/Nucleo, etc.  Onboard voltage translator, compatible with 3.3V/5V MCUs  Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Ard/STM32) Specifications  Operating voltage: 3.3V~5V  Interface: 3-wire SPI, 4-wire SPI  Outline dimension: 103.0mm × 78.5mm  Display size: 84.8mm × 63.6mm  Dot pitch: 0.212 × 0.212  Resolution: 400 × 300  Display color: black, white  Grey level: 2  Full refresh time: 4s  Refresh power: 26.4mW(typ.)  Standby power: <0.017mW  Viewing angle: >170 Photos \     Interface SYMBOL DESCRIPTION VCC 3.3V~5V GND Ground DIN SPI MOSI pin CLK SPI SCK pin CS SPI chip selection, low active DC Data/Command selection (high for data, low for command) RST External reset, low active BUSY Busy status output, low active Dimensions