An interactive scrolling text display sketch for Arduino and MAX7219 8x8 LED display modules.
This is the code I use to control the MAX7219 8x8 LED modules from my Chinese "Geekcreit" brand Arduino clone.
The first module is connected to the Uno like this:
- Module: VCC -> Uno: 5V
- Module: GND -> Uno: GND
- Module: DIN -> Uno: D8
- Module: CS -> Uno: D9
- Module: CLK -> Uno: D10
Additional modules are connected like this:
- Module 2: VCC -> Module 1: VCC
- Module 2: GND -> Module 1: GND
- Module 2: DIN -> Module 1: DIN
- Module 2: CS -> Module 1: CS
- Module 2: CLK -> Module 1: CLK
See the blog post at https://oneguyoneblog.com/2016/10/20/max7219-arduino-ticker-8x8-led-modules/