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Small rectangular e-paper display board with 40-pin GPIO header and 3.7 inch screen

LORDWORLD

LORDWORLD 3.7inch E-Paper HAT 480×280 SPI development board

SKU CH-1S4N-2ZXXZ

A 3.7-inch e-paper HAT with a 480×280 display connects via SPI to Raspberry Pi or Jetson Nano boards using the standard 40-pin header

  • Retains last image without power thanks to no-backlight design
  • Ultra-low consumption draws energy only during refresh cycles
  • 40-pin GPIO header fits Raspberry Pi series and Jetson Nano boards
  • SPI interface connects to Raspberry Pi, Jetson Nano, STM32 and similar controllers
  • Onboard voltage translator supports 3.3 V and 5 V microcontrollers

3.7-inch E-Paper HAT for Raspberry Pi

This 3.7inch e-paper module connects through a standard 40PIN GPIO header and SPI interface. It suits developers building low-power IoT edge devices that need a persistent black and white display without constant refresh cycles.

No backlight and ultra-low power draw

The display retains its last image indefinitely after power is removed because it has no backlight. Power is only consumed during the brief refresh operation, making it suitable for battery-powered or energy-harvesting projects.

480×280 pixel panel with onboard voltage translation

The 480×280 resolution panel mounts directly on Raspberry Pi series boards and Jetson Nano via the 40PIN header. An onboard voltage translator allows safe connection to both 3.3V and 5V microcontrollers such as STM32 without extra level-shifting circuitry.

Najważniejsze cechy

  • Retains last image without power thanks to no-backlight design
  • Ultra-low consumption draws energy only during refresh cycles
  • 40-pin GPIO header fits Raspberry Pi series and Jetson Nano boards
  • SPI interface connects to Raspberry Pi, Jetson Nano, STM32 and similar controllers
  • Onboard voltage translator supports 3.3 V and 5 V microcontrollers

Specyfikacja

BrandLORDWORLD

Pytania dotyczące tego produktu

How do I connect the 3.7inch E-Paper HAT to the Raspberry Pi 40PIN GPIO header without bending pins?

Align the onboard 40PIN extension header with the Pi GPIO, press straight down evenly until fully seated, then secure with standoffs to prevent angled pressure on the SPI pins.

What part of the display module will need replacement first after repeated refresh cycles?

The e-Paper panel itself degrades over many refreshes; the SPI interface and voltage translator are solid-state and typically outlast the display film.

At what refresh rate does the 480×280 SPI interface become the bottleneck during sustained updates?

The SPI bus limits full-frame updates to roughly a few frames per second; sustained rapid refreshing will hit this throughput ceiling before the panel response time does.

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