The Arduino MP3 shield is an add on board for developing Arduino based systems that incorporate MP3 decoding, SD cards and Joysticks. It is initially based on the work done as part of the ButterflyMP3 Project.

For more details please see http://www.brokentoaster.com/arduinomp3/

Arduino MP3 Shield hardware by Nick Lott is licensed under a Creative Commons Attribution-Share Alike 2.0 UK: England & Wales License	

The Arduino MP3 Shield firmware is licensed under a GNU GPL v2.0 License. It is a derivative of the Butterfly MP3 project at http://www.brokentoaster.com/butterflymp3/