weact-studio-epd

Unofficial Rust driver for WeAct Studio e-paper displays.

The driver exposes both write access to the screen frame buffers and higher-level embedded-graphics support.

By default this driver uses async. If you prefer to use a blocking API instead you can enable the blocking feature.

Supported displays

Display	Colors	Supported	Partial update1	Fast refresh2	Tested
WeAct 1.54 inch 200x200 B/W	Black, White	✕
WeAct 2.13 inch 122x250 B/W	Black, White	✓	✓	✓	✓
WeAct 2.13 inch 122x250 B/W/R	Black, White, Red	✓		✕
WeAct 2.9 inch 128x296 B/W	Black, White	✓	✓	✓	✓
WeAct 2.9 inch 128x296 B/W/R	Black, White, Red	✓		✕
WeAct 4.2 inch 400x300 B/W	Black, White	✕

Examples

See the examples folder for complete usage examples.

Features

• blocking: Replaces the API with a blocking version. This disables the async API so you cannot use both in the same project.
• graphics: Enables embedded-graphics support. Enabled by default.

Credits

This driver is based on the following crates:

• epd-waveshare
• ssd1680

License

This crate is licenced under:

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

Footnotes

1. Allows updating part of the screen buffer to save IO time and potentially memory. ↩

2. Refresh the screen without flickering the screen a few times. ↩