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Small rectangular 2.9 inch e-ink display board with gold edge connector and black components on green PCB

LORDWORLD

LORDWORLD 2.9inch E-Ink Display Module (B) 296x128 development board

SKU CH-67B7-NJN2M

A 2.9inch tri-colour e-paper module showing red, black and white at 296x128 resolution with SPI interface for Raspberry Pi, Arduino and STM32

  • Tri-colour 296×128 pixel screen shows red, black and white
  • SPI interface connects directly to Raspberry Pi, Arduino, STM32 and more
  • Onboard voltage translator works with 3.3 V and 5 V logic
  • Ultra-low power draw only during refresh cycles
  • Image remains visible without power or backlight

2.9 inch Tri Colour E Ink Board

This 2.9 inch e paper display shows red, black and white pixels at 296 by 128 resolution. It targets makers and developers building low power IoT edge devices or dashboard prototypes. The SPI interface connects directly to Raspberry Pi, Arduino, STM32, Jetson Nano or Nucleo boards. An onboard voltage translator allows safe operation with 3.3V or 5V logic.

Ultra Low Power Consumption

Power is drawn only during screen refresh cycles, so typical use consumes minimal energy. No backlight is fitted, eliminating continuous illumination draw. The panel retains the last image indefinitely without any supply, making it suitable for battery powered sensors or shelf labels. Heat output is negligible and the module operates silently.

3.3V and 5V Logic Ready

The built in level shifter removes the need for external shifting circuitry when mixing controller voltages. Example code and documentation are provided for Raspberry Pi, Arduino and STM32 platforms, reducing integration time. The compact 2.9 inch form factor fits tight enclosures. Buyers needing higher resolution, full colour video rates or touch input should consider alternative display technologies.

Pontos fortes

  • Tri-colour 296×128 pixel screen shows red, black and white
  • SPI interface connects directly to Raspberry Pi, Arduino, STM32 and more
  • Onboard voltage translator works with 3.3 V and 5 V logic
  • Ultra-low power draw only during refresh cycles
  • Image remains visible without power or backlight

Especificações

BrandLORDWORLD

Perguntas sobre este artigo

How do I wire the 2.9inch E-Ink Display Module (B) to a 3.3V or 5V MCU using the SPI interface?

Connect the module's SPI pins to the matching controller pins; the onboard voltage translator handles both 3.3V and 5V logic so no external level shifting is needed.

What long-term care does the tri-color e-paper panel need since it has no backlight and holds an image without power?

Store the display away from direct sunlight and extreme humidity; refresh the full screen every few weeks to prevent ghosting and keep the red, black and white pigments stable.

At what point does the 296x128 resolution and full-refresh cycle become the bottleneck during sustained updates?

Each full refresh takes several seconds, so the update rate — not the SPI bus — is the first limit you hit when changing content continuously.

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