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Small rectangular 2.7 inch e-ink display board with 40-pin header and exposed circuitry

LORDWORLD

LORDWORLD 2.7inch E-Ink Display HAT 264x176 development board

SKU CH-RPB8-T9J68

A 2.7 inch e-paper display HAT with a 264 by 176 resolution, SPI interface, 40 pin GPIO header, and onboard voltage translator for 3.3 V and 5 V MCUs

  • Zero power retention keeps images visible without backlight
  • Standard 40-pin GPIO header fits Raspberry Pi and Jetson Nano
  • SPI interface connects to Arduino, Nucleo and other controllers
  • Onboard voltage translator supports 3.3V and 5V logic levels
  • Development resources include examples for Raspberry Pi, Jetson Nano, Arduino and STM32

2.7 inch E-Ink HAT for Raspberry Pi

This 2.7 inch e-paper HAT provides a 264 by 176 pixel black and white display for Raspberry Pi boards and Jetson Nano. It mounts on the standard 40 pin GPIO header and needs no backlight, so the last image remains visible after power is removed. Makers building low power status panels or shelf labels will find it a good fit. Buyers who want colour output or a larger viewing area should look elsewhere.

SPI interface and voltage limits

Communication uses a SPI bus, which keeps wiring simple but limits refresh speed compared to parallel interfaces. The onboard voltage translator accepts 3.3 V and 5 V logic levels, letting the module connect directly to Arduino, STM32 or Nucleo boards without extra level shifters. No other interface or protocol is supported. Projects that need rapid animation or video playback will find the SPI bandwidth insufficient.

Mounting and common issues

The HAT plugs straight onto the 40 pin header, so no soldering is required for Raspberry Pi or Jetson Nano. Example code for Raspberry Pi, Jetson Nano, Arduino and STM32 is supplied in the development resources. A frequent problem is forgetting to enable the SPI kernel module on the Pi before running the demos. Another is wiring the module to a 5 V only controller without confirming the translator is active, which can cause blank screens.

Pontos fortes

  • Zero power retention keeps images visible without backlight
  • Standard 40-pin GPIO header fits Raspberry Pi and Jetson Nano
  • SPI interface connects to Arduino, Nucleo and other controllers
  • Onboard voltage translator supports 3.3V and 5V logic levels
  • Development resources include examples for Raspberry Pi, Jetson Nano, Arduino and STM32

Especificações

BrandLORDWORLD

Perguntas sobre este artigo

Which Raspberry Pi boards does the 40PIN GPIO header on this 2.7inch E-Ink Display HAT support?

The 40PIN GPIO extension header fits Raspberry Pi 4B+, 4B, 3B+, 3B, 2B+ and Zero boards directly.

What does the 264x176 resolution mean for text and graphics on the 2.7inch screen?

The 264 by 176 pixel grid gives sharp black-and-white text and simple graphics at a readable size on the 2.7inch diagonal.

How does the SPI interface limit data transfer to the display?

The SPI interface sends serial data to the panel; update speed depends on the host MCU clock and the e-ink refresh cycle, not on a fixed bus ceiling.

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