The /fabricate folder has 3D FreeCAD model files. The /kicad_vX folders contain schematic, PCB and related files. The /arduino folder has the Arduino code sketches.

When it comes to LED matrixes, building one is just the first step. Then you have to decide what to display on it. [panjanek] came up with a relatively flexible answer to this question, building ...

When digging through my pile of old electronics components I came across an LED matrix that I purchased many years ago. I was never able to get it working at the time, especially since I was using a ...