Arduino for STM32

A little more conversation is happening here: https://github.com/mathertel/DmxSerial2/issues/31

I'm looking for some assistance receiving DMX512 using a STM32. I don't need to transmit or use RDM or anything, just receive a universe of DMX and control some neopixels with it. Unfortunately, all of the prebuilt DMX libraries depend on AVR specific stuff and do not compile for STM32 (usually with...