1. Raspberry Pi Pico
  2. USB cable to connect the Teensy to your computer
  3. A RetroSpy Xbox 9000 cable.  Do one of the following:
    • Make you own using the instructions under Wiring – No Soldering Required
      • Xbox 9000 extension cable
      • DB9000 Male Breakout Board
      • Wires connect to the breakout board, like these
    • Make you own using the instructions under Wiring – Soldering Required
      • Xbox 9000 extension cable
      • Wires to solder into the controller extension cable to go to the Arduino, like these
      • Wire cutters/strippers
      • Soldering iron and solder
      • Electrical tape and/or heat shrink tubing
      • Digital multimeter or a cheap continuity tester