[Fabien] decided he wanted to build his own LED display and ended up with something ... The original plan was to drive these with an Arduino, but with so many pixels he quickly ran out of RAM.

The rows are turned on and off using ten transistors controlled by ten more Arduino pins. Scanning at 80 frames per second he gets a nice, flickerless display. To make both the LED matrix circuit ...

Fastest finger first indicators (FFFIs) bring precision to quiz games, measuring contestants’ reaction times with accuracy.

The instructions to install the Adafruit Blinka Raspberry Pi 5 PioMatter library (or just PioMatter for short) can be found ...