“I have a whole tray of these 7-segment displays that I pulled out of boards at work that someone threw in the garbage. I’ve had them for well over 10 years. Every now and then, one comes in handy. I was bored while I waited for parts for my IN-18 Nixie Clock to arrive from China. I wanted to throw together a silly little ATtiny thing that could use a 7-segment display to display a random number from 0-9. Nothing fancy, just a silly little one-day project.”