[tl2do]

I'm interested in this too. I've been using STM32 NUCLEO boards, which are cheap and capable, but even the smallest ones are noticeably larger than this. I'd love to see an STM32 version of this project.

[sleepydog]

https://tomu.im/somu.html

This is an stm32l432kc in the form of a yubikey nano.

[jacquesm]

That's just nuts. That's more processing power than the first 10 computer I owned combined.