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Replacement:DEV-10628. The new version of this board incorporates an SD card reader. This page is for reference only.
The MP3 Shield wires your Arduino up to a VS1053B MP3 audio decoder IC, providing it with the ability to decode audio files. The VS1053 is also capable of decoding Ogg Vorbis/MP3/AAC/WMA/MIDI audio and encoding IMA ADPCM and user-loadable Ogg Vorbis.
The VS1053 receives its input bitstream through a serial input bus (SPI). After the stream has been decoded by the IC, the audio is sent out to both a 3.5mm stereo headphone jack, as well as a 2-pin 0.1" pitch header.
The shield’s power is taken from the ‘5V’ pin of your Arduino and regulated to both 3.3V and 1.8V to power the VS1053B.