The panels in question are HUB75 LED panels. In the 32×8 panels, there are six data pins – two each for each color – four row select pins, and three control pins. The row select pins select ...

The latest entry into the pantheon of unusual timepieces is this ESP32-powered desk clock from [Alejandro Wurts] that features a folding LED matrix display. The clock uses eight individual 8 x 8 ...