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Four-inch colour e-paper HAT board with driver electronics

WaveShare

WaveShare 4inch E Ink Spectra 6 Full Color E-Paper Display HAT+

SKU CH-A9GX-X4WJ7

Four-inch Spectra 6 full-colour e-paper HAT+ for Raspberry Pi, Jetson and RDK boards, displaying persistent images with near-zero power draw

  • Full-colour images from six-colour E Ink Spectra 6 technology
  • Retains last frame indefinitely without any backlight power
  • Ultra-low consumption — energy needed only during refresh cycles
  • Works with Raspberry Pi 5, 4B, 3B, Zero, Pico and Jetson boards
  • HAT+ driver board simplifies integration into embedded projects

What this display is and who it suits

The WaveShare 4inch E Ink Spectra 6 HAT+ is a full-colour e-paper panel that uses six-colour blending to produce images with high contrast and saturation. It draws power only during refresh and retains the last image indefinitely without a backlight. The board follows the HAT+ standard and is aimed at makers, developers and educators who need a low-power, sunlight-readable screen for Raspberry Pi, Jetson Nano, Jetson Orin Nano or RDK X3 projects.

Check your board and software before ordering

Verify that your single-board computer exposes a standard 40-pin GPIO header compatible with the HAT+ footprint; the product supports Raspberry Pi 5, 4B, 3B, Zero, Zero W, Zero 2W, Pico, Pico W, Pico WH, Jetson Nano, Jetson Orin Nano and RDK X3. Confirm that your operating system can drive the display via SPI and that you have access to the supplier’s Wiki for driver installation and example code. Ensure your enclosure provides a cut-out for the 4-inch panel and does not press on the fragile e-paper surface.

How it fits into a build

The HAT+ mounts directly on the GPIO header, leaving the remaining pins accessible for additional HATs or sensors through stacking headers. Because the display consumes negligible power between refreshes, it is ideal for battery-powered or solar-powered devices such as e-readers, dashboard instruments or remote sensor nodes. The lack of a backlight frees up power budget and eliminates the need for a dedicated regulator or cooling. Plan for a refresh interval that suits your application, as full-colour updates take longer than monochrome e-paper.

Highlights

  • Full-colour images from six-colour E Ink Spectra 6 technology
  • Retains last frame indefinitely without any backlight power
  • Ultra-low consumption — energy needed only during refresh cycles
  • Works with Raspberry Pi 5, 4B, 3B, Zero, Pico and Jetson boards
  • HAT+ driver board simplifies integration into embedded projects

Specifications

No published specifications for this item yet.

Questions about this item

What comes in the box and what else do I need to buy?

The package includes the 4-inch Spectra 6 full-colour e-paper panel with the HAT+ driver board. You must supply a compatible Raspberry Pi, Jetson Nano/Orin Nano or RDK X3 board separately.

Which version or capacity should I choose for this display?

This is a single 4-inch Spectra 6 (E6) full-colour e-paper HAT+; no alternative sizes, resolutions or capacity options are offered for this model.

What does the Spectra 6 six-colour blending mean in everyday use?

The panel mixes six base pigments to render full-colour images without a backlight, retaining the last frame when power is removed and drawing power only during refresh cycles.

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