4.2inch E-Ink Display Module 400x300 Three-Color

This 4.2-inch E-Ink display module features a 400x300 resolution with an embedded controller. It supports three-color display (red, black, and white) and communicates via an SPI interface, making it compatible with controller boards such as Raspberry Pi, Arduino, STM32, and Nucleo.

Thanks to its e-Paper technology without backlight, it retains the displayed image even when powered off, while consuming minimal power (only during refresh). The onboard voltage translator allows direct compatibility with 3.3V and 5V microcontrollers. Development resources including code examples are provided.

Specifications

• Operating Voltage: 3.3V to 5V
• Interface: SPI (3-wire or 4-wire)
• Resolution: 400 × 300 pixels
• Colors: Red, Black, White
• Grey Levels: 2
• Full Refresh Time: 15s
• Standby Power: < 0.017 mW
• Viewing Angle: > 170°
• Module Dimensions: 103.0mm × 78.5mm
• Visible Display Area: 84.8mm × 63.6mm