A project log for Raspberry Pi Retro Gaming LED Display

20x10 WS2812 LEDs driven by Raspberry Pi/Arduino to play games like Tetris in the living room

makeTVeemakeTVee 06/12/2016 at 14:580 Comments

The schematic is now available. There are only three relevant connections:

  1. UART between Pi and Arduino (connected DTR-pin for programming the Arduino firmware from the Pi), with a simple voltage divider for 5V to 3.3V conversion
  2. SPI for the MAX7219 matrix display
  3. Serial connection from Arduino to the WS2812 stripes