Recently I've been playing around with an LED Matrix and controlling it with a MAX7219 LED driver. This video is a bit of a rant with some tips and tricks about getting started with the MAX7219 since I struggled a bit in getting the circuit hooked up properly when I was getting started.

Links

MAX7219 Datasheet: https://cdn-shop.adafruit.com/datasheets/MAX7219.pdf LED Matrix Datasheet: https://cdn-shop.adafruit.com/datasheets/861datasheet.pdf Arduino Playground for MAX7219: https://playground.arduino.cc/Main/MAX72XXHardware/ CircuitPython MAX7219 Library: https://github.com/adafruit/Adafruit_CircuitPython_MAX7219 Pinout diagrams on GitHub: https://github.com/BlitzCityDIY/MSGEQ7_experiments/blob/master/LEDmatrix_to_MAX7219.pdf

Thanks to Mai Mariarti from the YouTube comments for this additional resource: https://howtomechatronics.com/tutorials/arduino/8x8-led-matrix-max7219-tutorial-scrolling-text-android-control-via-bluetooth/