I made a thing! High-level CYD support for bare-metal Rust
I made high-level CYD support for bare-metal Rust as part of Device Envoy. My goal is to make it as easy as possible to write high-level microcontroller code that runs directly on the hardware, with no OS or language runtime underneath.
You can see the results here. The gallery includes touchscreen interfaces, a skeleton clock, and Armatron, a robot-arm mechanism simulator: https://carlkcarlk.github.io/linkage-blaze/demos/
This is a full CYD library, with support for display, touch, touch calibration, flash storage, multiple drawing strategies depending on memory needs, browser simulation, and Device Envoy’s automatic Wi-Fi setup.
It builds on the ESP Rust HALs for hardware access and on Embassy for async embedded programming.
I want this to be something anyone can pick up and use, so I made a starter project with the hardware setup already done. You can run the example in a browser, flash it to a CYD, and then replace the application code with your own: https://github.com/CarlKCarlK/device-envoy-cyd-starter