If you need to leave someone a message, you could either entrust it to a Post-It note or you could go the slightly more obvious route and use a 12-foot long LED matrix. That's what kitesurfer did, ...

The project illustrates the assembly of a LED matrix display made in 16×24 Green SMD LED matrix. The matrix contains 16 rows which are controlled by a 4:16 de-mux using only 4 I/O pins. Two 8-channels ...

There are so many nice hacks in [Joekutz]’s retro LED display project that it’s hard to know where to start. There’s his DIY LED display controlled by an Arduino UNO. To have some text or picture for ...

We’ve all seen Daft Punk helmet builds, but [George’s] project is a homemade LED helmet that takes no shortcuts and packs the visor full of hundreds of individual lights. He started with a prototype ...