TL:DR Checklist

Arduino + Controller Setup

• Install the Arduino IDE (if not already installed)
• Download the SHADOW Arduino sketch and libraries ( link )
• Extract the folder
• Install libraries from the Shadow folder to the Arduino Libraries folder
  
  • For Windows, this will be under Documents / Arduino / libraries by default
  • Copy these folders
    • MP3Trigger  ( Sparkfun MP3 Trigger board )
    • serMP3  ( MdFly MP3 board )
    • USB_Host_Shield 
• Open the sketch in the IDE ( Shadow / Shadow.ino  )
• Set up the USB Shield ( see here )
• Connect your USB Shield and Arduino
• Connect your Arduino to your computer using a USB-A to USB-B cable
• Upload the sketch using the Arduino IDE
  • Click on "Verify"
  • Click on "Upload"
• Connect to the Arduino using the Serial Monitor
  • Tools -> Serial Monitor
  • Select 115200 Baud
  • Check the output
• Unplug the Arduino
• Plug in the Bluetooth USB adapter
• Plug the Arduino back into the Computer
• Check the Serial Monitor
• Unplug the Bluetooth Adapter
• Plug the PS3 Move controller into the shield using a USB-A to USB-Mini cable
  • Get the Bluetooth MAC address for the controller form the Monitor
• With the controller unplugged, press the Playstation button to start pairing
• Update the PS3MoveNavigatonPrimaryMAC variable in the Shadow sketch using the IDE with the MAC from the controller
• Re-place the Bluetooth Adapter
• Re-Upload the sketch after saving