e-e-Paper Display Module

Battery-powered ePaper Display

This site/project documents a hackable internet-connected e-Paper display (or, e-e-Paper).

The electronics hardware utilizes an ESP32-C3 module to work with Waveshare 24-pin displays, and allows attaching a lithium-ion battery which can be charged over USB.

The firmware uses configuration loaded from an SD card and/or retrieved from the Internet to determine what to show on the display.

In and of itself, this module is not a finished product; however, it may be a good starting point for your own project, and could be adapted to many different use cases.

Examples

Coming soon!

Features

• Outputs onto 24-pin Waveshare e-Paper display modules (currently black/white only)
• Runs on a lithium battery and charges over USB
• Is highly configurable by editing toml files
• Can connect to the Internet over WiFi, or standalone using a microSD card
• Can be updated over USB and, in the future, over the air

Apps

The display can or can be configured to show the following things:

• Message Box: Rotate through a list of messages, either statically or retrieved from a server.
• TODO: Weather forecasts
• TODO: A simple clock
• TODO: A calendar display app

The project status is largely in flux and currently in a proof-of-concept state. Lots may change! The plan is that I will have kits available for purchase, and allow for you to utilize the same server I use (for a small monthly cost) to host configuration and apps that require web-facing parts.

That said, you are free to have the board fabricated on your own, host the server software yourself, or not use any server at all.

Where to go from here

If you’d like an introduction to using the device and how it can be used, take a look the user guide.

If you’re interested in the hardware, check the hardware reference.

For more information on building or modifying the firmware, see the build guide.