Adding the GitHub repo for the code here too.
You can check out my current code here: https://github.com/kcculhwch/silviaPiPID
It's currently pretty rough, and the first project I've ever done with rust, so I'm 100% sure many Rustaceans will cringe at my code. Also unit tests need to happen :).
Some of the code for image rendering to fb is derived from example code provided by, https://github.com/Roysten/rust-framebuffer (under the very permissive license, I'm assuming that's ok), as well as some provided by example code for rusttype https://github.com/redox-os/rusttype