For now this is only quick & dirty. I meant to show students that Microbit is an adult embedded system.
My students are all Dutch, so comments on Youtube are also Dutch. Sorry about that...
All examples are based on Arduino library examples, so nothing fancy.
Remember: Microbit can only use 3.3V devices. You can output 3.3V signals to 5V devices, that will work. If you supply 5V signals to the Microbit, you will break it!
The links point to my Youtube channel. You can find the extra information over there. Have fun!