I wanted to try creating scrolling messages across the 7-segment display in my 7-seg counter project. There were a couple issues though:
1. I decided to only use letters that were easily readable. Letters that are no good include K, W, and M. That limits the messages I could put across the display.
2. My original code couldn’t fit on the Attiny chip so I stripped it all down just so that I could display the “Adafruit” text.
This is kind of why I wanted those LED matrices…