Scrolling Message Board

This is a scrolling message board I made using 8x8 LED matrices, each driven by a MAX7219 chip. The data on these chips were set by an Arduino Uno.

You can connect displays in series to extend the length of the message board. In the code you set the number of displays.

You can scroll any string you like, at a speed you set. This is done with a function included in the program.

There was an iteration of this with SD card functionality. You could load strings, and corresponding speeds on to an SD card and the Arduino would automatically cycle through these and display their messages. Unfortunately, this has been lost to the sands of time.

You can check out the code on GitHub.