This 4.2" e-Paper module is a quad-colour display (Red/Yellow/Black/White) with no backlight and keeps the last displayed image for long periods even when powered off. Power is only needed during refreshes, so you're barely using any power. The display also has a wide 170° viewing angle for visibility from most angles. The SPI interface lets it connect to other controller boards like Raspberry Pi and Arduino, while a built-in voltage translator provides compatibility with both 3.3V and 5V MCUs. Included are online development resources and a manual, which makes it easy to get started! We also have the raw display panel here Features * No backlight, keeps displaying last content for a long time even when powered down * Ultra-low power consumption, basically power is only required for refreshing * Comes with online development resources and manual (driver board circuit diagram, examples for Raspberry Pi / Jetson Nano / Arduino / STM32) * Adapting SPI interface for connecting with controller boards like Raspberry Pi / Jetson Nano / Arduino / STM32, etc. * Voltage translator, compatible with 3.3V / 5V MCUs Specifications Operating Voltage 3.3V/5V Interface 3-wire SPI, 4-wire SPI Outline Dimensions 103 x 78.5 (mm) Display size 84.8 x 63.6 (mm) Dot Pitch 0.212 x 0.212 (mm) Resolution 400 x 300 pixels Display Colours Red/Yellow/Black/White Greyscale 2 Full Refresh Time 21s Refresh Power <30mW Standby Current <0.01uA (almost none) Viewing Angle >170° Resources * Product Wiki * Datasheet Pinout VCC Power (3.3V / 5V input) 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 pin Package Contents * 1x 4.2" e-Paper Module * 1x PH2.0 8-pin Cable https://elecena.pl/product/27808848/4-2-epaper-display-module-red-yellow-black-white-400x300 2025-02-07 https://elecena.pl/product/27808848/4-2-epaper-display-module-red-yellow-black-white-400x300 2025-02-14 https://elecena.pl/product/27808848/4-2-epaper-display-module-red-yellow-black-white-400x300 2025-08-06 https://elecena.pl/product/27808848/4-2-epaper-display-module-red-yellow-black-white-400x300 2025-11-28 https://elecena.pl/product/27808848/4-2-epaper-display-module-red-yellow-black-white-400x300 2025-11-29 https://elecena.pl/product/27808848/4-2-epaper-display-module-red-yellow-black-white-400x300 2026-03-15