HOWTO: STM32 microcontroller with the Arduino-IDE
The Arduino micro-controller's are very popular, however sometimes they are just not powerful enough.
A lot of home-brewing ham's tend to switch to a Raspberry-Pi in this case, however often this isn't just the elegant solution they look for.
A Raspberry Pi compared to e.g. an Arduino Nano is large, expensive, boots way to slow, consumes a lot, needs a flash-drive ...