Great question - and you're right about that page not including it due to the audience. It's an STM32L4. (L443 specifically). I went with it since it's a versat

Great question - and you're right about that page not including it due to the audience. It's an STM32L4. (L443 specifically). I went with it since it's a versatile, well-documented MCU aimed at low-power, non-RF uses. I almost had to delay launch due to a shortage, but I got lucky when F5ing Digikey before they went out of stock again! Using a QFP footprint, although may switch to QFN on a future revision to avoid bent pins, and solder bridges high on the pins. A blog article I posted a few days ago on the website goes into some detail about Rust, with a focus on STM32.