NEW GUIDE: Adafruit Protomatter RGB Matrix Library

NEW GUIDE on the Adafruit Learning System: Adafruit Protomatter RGB Matrix LibraryAdafruit_Protomatter is a C library (with Arduino and CircuitPython front-ends) for driving RGB LED matrices. This guide is mostly to assist with porting Adafruit_Protomatter to new hardware. Like a nebula birthing new stars, Protomatter is an early stop for...