Feature

●This is a 4.2 inch 400x300 resolution E-Ink display module that communicates via SPI interface.
●The advantages of ultra low power consumption, wide viewing angle, and excellent effect under sunlight, making it ideal for applications such as shelves, industrial equipment, etc.
●Onboard voltage converter chip is compatible with 3.3V/5V MCU. Suitable for Raspberry Pi and arduino projects
●The 4.2" electronic paper module only shows black and white and does not show other colors.
●English Manual URL: www.waveshare.com/wiki/4.2inch_e-Paper_Module


Description

English Tutorial:
www.waveshare.com/wiki/4.2inch_e-Paper_Module

Features
There is no backlight, and the last content will be displayed for a long period of time, even when the power is turned off.
Ultra low power consumption, basically requires only a refreshing power supply
●SPI interface Connects to controller boards such as RaspberryPi / Arduino / Nucleo
Onboard voltage converter compatible with 3.3V/5V MCU
Development resources and manuals are included (examples of Raspberry Pi / Jetson Nano / Arduino / STM32)

Specifications
Operating voltage: 3.3 V - 5 V
Interface: 3-wire SPI, 4-wire SPI
Dimensions: 4.1 x 3.1 inches (103.0 x 78.5 mm)
Display Size: 3.3 x 2.5 inches (84.8 x 63.6 mm)
Dot pitch: 0.08 x 0.08 inches (0.212 x 0.212 mm)
Resolution: 400 x 300
Display Color: Black, White
Gray Level: 2
Complete update time: 4 seconds
Refresh power: 26.4 mW (type). )
Standby power: <0.017mW
Viewing angle: > 170