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Arduino Scrolling Message Display
Sketch: https://pastebin.com/yH8AmG4c
MAX7219 Dot Matrix Module: http://amzn.to/2EcruyN
MAX72xx LED Matrix Display Library:
https://majicdesigns.github.io/MD_MAX...
Max72xx Library: https://github.com/MajicDesigns/MD_MA...
MDParola Library: https://github.com/MajicDesigns/MD_Pa...