Mini arcade stacker game powered by Arduino Uno R3 and a 4-in-1 MAX7219 LED dot matrix display.

Parts:

• Arduino UNO R3
• MAX7219 4-in-1 LED matrix module
• 22mm button 
• 2x M3 17mm screws
• 1x M3 7mm screw
• A few wires

The screen panel is optional in PETG translucent — but it helps diffuse the bright LED light nicely.

Code:
[https://github.com/unicornm-m/Stacker-game](https://github.com/unicornm-m/Stacker-game)

Arduino Uno R3
-----------
5V  ─────────── VCC  
GND ────────── GND  
Pin 11 ─────────   DIN      ── MAX7219 4-in-1
Pin 10 ────────── CS  
Pin 13 ─────────  CLK  
 

GND ────────── NO 
Pin 2 ────────── C    ── Button

Disclaimer: This is my first Arduino project, so the code and wiring might not be perfect. Feedback and suggestions for improvement are very welcome!