London tube map made from a working circuit board
I like this but one thing - it looks like the lights only show if a train is at a station , then goes off once it leaves, so seemingly you have random lights - instead of a light traversing a path.   Or did I misunderstand looking at the gif?Update: I do love this project I would really like this to be resolved so it’s perfect perhaps lights should stay on until the train reaches the next station?