One of the goofier projects I’ve started recently has been toying with an Adaptive Micro Systems LED sign, specifically the PPD220RED (for “personal proximity display”, and its color). I’ve wanted to own a goofy LED marquee sign for years, and after some searching I managed to snag one on eBay.
Among other things, I’ve hooked it up to a Raspberry Pi and have it showing simple weather information, sourced from OpenWeatherMap.
The protocol for the sign is available online, and I’ve been working on an implementation of it so I can let the internet display messages on it as well. But for now it’s mostly just a silly little toy.