introduce:
Strap + acrylic sheet: the strap secures the acrylic sheet and becomes a wearable watch case.This band can be connected to the BBC micro:bit and power:bit, which can be a wearable watch.Implement pedometer, timer, etc.Features:
1. The pocket size is exquisite.
2. Breathe freely
3. It is fashionable.
4. Both can be disassembled.
The picture does not contain the motherboard.