The folks at Adafruit worked extensively in coordination with Phil Burgess at PaintYourDragon to come up with this easy and intuitive scrolling matrix code that works with the WS2812 LEDs that are in many of their products as well as our matrices. Here I have ganged up eight early prototypes of the 8×8 Matrices to create this large display.  You can find the code at https://github.com/adafruit/Adafruit_NeoMatrix.