I have had another cpan module published! This one is a driver for a MAX7219 8-digit LED display on the PINE64 single board computer. The video above is a demo of some of the module’s capabilities. It is implemented as bit-banged SPI using the perl programming language.
A very easy to use display, it only uses 3 GPIO pins, and could be used to output the value of sensors, or simple menus for projects.