Here are 5 separate rust projects, going from a hello world to a micro:bit accelerometer operated mouse. The device in use is micro:bit v1.5.

• ex1: hello-world over RTT
• ex2: 5x5 led display demo
• ex3: Serial interface and buttons demo (see comments in main.rs to see the PC-side setup)
• ex4: Serial interface and accelerometer data demo (see comments in main.rs to see the PC-side setup)
• ex5: make micro:bit operate the PC's mouse coursor or my old SpaceGame Space Invaders clone in Python (see comments in main.rs to see the PC-side setup)