Arduino Motor Shield R3

Arduino is a huge ecosystem, so if there is a way to adapt the Raspberry Pi interface to Arduino pinning, you can create fantastic designs using the best of both worlds. This Adapter Board was created just for this.

Play your .mp3 files stored by USB or SD card. For Use (12V): Place a 68Ohm/1W Resistor in series with the (+) of the Power Supply, to avoid excessive dissipation.

SparkFun PWM Shield