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Rectangular 4.01 inch e-paper HAT with 640 by 400 pixel display and 40 pin GPIO header

LORDWORLD

LORDWORLD 4.01inch E-Paper HAT 640×400 7-Color SPI

SKU CH-MVXE-CHN8C

A 4.01-inch ACeP e-paper HAT showing 7 colours at 640×400 over SPI, with a 40-pin GPIO header for Raspberry Pi and Jetson Nano, no backlight, and 3.3 V or 5 V logic compatibility

  • 7-Color ACeP display shows vivid images without backlight
  • Image stays visible for weeks after power is removed
  • Ultra-low power draw only during screen refresh cycles
  • Onboard voltage translator works with 3.3V and 5V logic
  • 40-pin GPIO header fits Raspberry Pi and Jetson Nano

Compact 4.01inch E-Paper HAT

This 4.01inch e-paper HAT adds a 640×400 seven-colour display to Raspberry Pi boards and Jetson Nano modules through the standard 40-pin GPIO header. Makers building low-power signage, sensor read-outs or portable instruments can mount it directly without extra wiring. The onboard voltage translator allows safe connection to both 3.3V and 5V microcontrollers such as STM32 boards.

SPI interface limits refresh speed

The display communicates over SPI, so full-screen updates take noticeable time and are not suited to video or rapid animation. Seven-colour ACeP rendering requires multiple passes, making each refresh slower than monochrome e-paper. Power is only drawn during refresh cycles; the panel retains its image indefinitely without a backlight when the supply is removed.

Check GPIO header and driver support

Verify that your target board exposes the full 40-pin GPIO header and provides an SPI device node for the panel. Ensure the operating system image includes a compatible ACeP driver or that you can compile one for the 640×400 resolution. Confirm the 3.3V or 5V logic level matches your controller before connecting the HAT.

Puncte forte

  • 7-Color ACeP display shows vivid images without backlight
  • Image stays visible for weeks after power is removed
  • Ultra-low power draw only during screen refresh cycles
  • Onboard voltage translator works with 3.3V and 5V logic
  • 40-pin GPIO header fits Raspberry Pi and Jetson Nano

Specificații

BrandLORDWORLD

Întrebări despre acest articol

Which Raspberry Pi or Jetson Nano boards fit the 40PIN GPIO header?

The HAT uses a standard 40PIN GPIO extension head that fits Raspberry Pi series boards and Jetson Nano.

What does the 640×400 resolution mean for on-screen detail?

The 4.01inch panel shows 640 by 400 pixels across seven colours, giving sharp text and graphics without a backlight.

How does the SPI interface limit refresh speed?

SPI drives the display, so refresh rate depends on the host controller's SPI clock; only screen updates consume power.

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