I programmed it with ESPHome, and it only took a few hours from start to finish.

Maxim’s MAXREFDES99# is an Arduino® form-factor shield which drives a 16×16 LED array for signage applications. This design is ideal for anyone developing a display application. The board features ...

[Will] was toying with the idea of creating a scrolling LED marquee to display messages as his wedding in May. But you’ve got to crawl before you can walk so he decided to see what he could do with ...