This dog collar will make you noticeable when you walk your dog in the dark! It features 5 very Bright LEDs, that can be programmed very easily with Micro:Bit to change color, animation, brightness.....
It also shows how long you’ve been walking (in minutes) and automatically adjust the brightness depending on the ambient light.
3D print this file to make a sturdy case for your Micor:Bit.
Find the tutorial on http://manuals.velleman.eu