Arduino Tetris

Material

2x MAX7219 (driving 2x 8x8 LED Matrices)
1x Arduino Trinket (or equivalent)
4x momentary buttons
4x resistors (I used 100k ohm)
1x 9v battery
Extra (perfboard, wires, soldering iron etc)

Circuit

Note

The code in this repository is not updated to work with the circuit above. Modify the pin numbers in the source code to get it running!