The Adafruit Music Maker MP3 Shield turns any Arduino into a versatile audio player, recorder, and MIDI synthesiser. Powered by the VS1053B codec chip, it decodes MP3, AAC, Ogg Vorbis, WMA, FLAC, WAV, and MIDI formats, and can also record audio in PCM (WAV) or compressed Ogg Vorbis — all over a lightweight SPI interface.

Play audio files from a microSD card, record sound via the microphone input, or boot into MIDI synth mode for dozens of built-in drum and instrument sounds. This is the line/headphone output version with stereo output featuring proper filter capacitors and ground reference for safe connection to headphones or powered speakers.

Key Features

• VS1053B Codec – Decodes MP3, MP4/AAC, Ogg Vorbis, WMA, FLAC, WAV (PCM/ADPCM), MIDI; encodes Ogg and WAV
• MicroSD Card Slot – Plays from any FAT16/FAT32 card (64 MB or larger)
• Stereo Line/Headphone Output – With filter caps and ground reference
• Built-In MIDI Synth – Dozens of instrument and drum sounds via 31,250 baud MIDI
• Digital Audio Controls – Adjustable bass, treble, and volume
• 7 Extra GPIOs – Read buttons or drive LEDs through the Arduino library
• Full Level Shifting – 3.3 V / 5 V for both SD and codec chips
• Recording Capable – Microphone input breakout for audio capture

Compatibility

• Arduino UNO, Leonardo, and Mega

Ideal For

• Audio playback and sound effects projects
• MIDI synthesiser and drum machine builds
• Audio recording and logging
• Interactive exhibits and talking props

Package Contents

• 1× Adafruit Music Maker MP3 Shield (assembled and tested)
• 2× 2-pin terminal blocks
• 1× 0.1" male header strip
• 1× 2×3 female header (ICSP)

Resources

• Music Maker Shield Learn Guide