epape-rs: OpenEPaperLink compatible library & tools for ESPs in Rust

This project contains some tools to interface with OpenEPaperLink from rust.

• epape-rs is a library that implements the OpenEPaperLink protocol in rust. Currently very much work in progress!
• epaperustation is a small tool that transfers a given image using epape-rs to an ESP32-C6 running the OpenEPaperLink Antenna firmware.
• webpape-rs is a firmware for an ESP32-S3 (but will probably work with pretty much any ESP with some changes) that
  • connects to a predefined wifi
  • fetches an image from a predefined URL
  • sends that image via UART to an ESP32-C6 running the OpenEPaperLink Antenna firmware
• webpaper-config contains a small tool (flash-config; see its Justfile) to flash configuration to an ESP32-S3 running webpape-rs. The configuration contains data like the wifi SSID & password and the URL to fetch images from.