An LED matrix installed in a real pumpkin. When I mentioned that we ... autumn vegetable is a marquee made from a 5×14 matrix of light emitting diodes. I spaced them by printing out a grid ...

Pumpkin Eyes uses two MAX7219 LED arrays, an Arduino nano, and a USB power supply. Yeah, it’s pretty simple — but after watching the video you’ll probably want to make one too. It’s just ...