Looking for a medium-sized, three-colour, general-purpose E-Ink display for your next microcontroller or single board computer project? This 4.2-inch, Yello, Black and White, E-Ink display module boast a resolution of 400x300 pixels, and features an embedded controller. Communication is handled via the SPI interface.
Due to the advantages like ultra low power consumption, wide viewing angle, clear display without electricity, it is an ideal choice for applications such as shelf label, industrial instrument, or for your next Raspberry Pi project.
Online resources are available, which include setup instructions on the Waveshare Wiki.
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 the display
SPI interface, for connecting with controller boards like Raspberry Pi/Arduino/Nucleo, etc.
Onboard voltage regulation, compatible with 3.3V/5V MCUs
Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/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: yellow, black, white
Grey level: 2
Full refresh time: 15s
Refresh power: 26.4mW(typ.)
Standby power: <0.017mW
Viewing angle: >170°
Pinout
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)