Video of my progress to make a clock out of a pinball score reel.
This is an Adafruit ESP32 Feather V2 running uLisp code to cycle four relays driving 24v to the reel solenoids.
The whole thing is wonderfully clacky and mechanical.
Next to do is wiring the zero switches on the reels back to the ESP32 so I know what number the reels are at.