Taken from https://bitbucket.org/nfd/arduino-maple and converted into an Arduino library.

##Wiring

• Red wire: PORTB0 (Pin 8 on Duemilanove/Uno; Pin 53 on Mega)
• White wire: PORTB1 (Pin 9 on Duemilanove/Uno; Pin 52 on Mega)
• Blue wire: +5V
• Brown/Black wire: GND
• Green wire: Unconnected or GND (connected to GND inside the controller)
• GND (unshielded): GND

##Usage

After uploading to your Arduino, run one of the Python scripts in the util folder. The Python scripts require the pySerial library (run pip install pyserial to install it). You may need to edit the maple.py file and change the serial port name to the correct serial port for your Arduino.

##Issues

According to the original commit comments, the code probably doesn't work on Arduino Megas.