1. Teensy 3.5 with Pins:
    • Get a brand new board from here
  2. USB cable to connect the Teensy to your computer
  3. (Optional) Breadboard
  4. Make you own RetroSpy Xbox 9000 cable using the instructions under Wiring.
    • Wires to solder into the controller 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