Description
The Adafruit Audio FX Sound Board with 2x2W stereo class D amplifier is the easiest way to add audio and sound effects to your projects without requiring any microcontroller or programming. It features 16MB of onboard storage and supports WAV or OGG files, with up to 11 trigger inputs for buttons or switches.
Key Features:
- No Arduino or microcontroller required — completely stand-alone, just needs 3 to 5.5V DC power
- Compact size (23mm x 51mm x 3mm)
- 16MB built-in storage — stores audio files directly on the board with drag-and-drop via USB
- Supports compressed Ogg Vorbis and uncompressed WAV files in high quality (44.1KHz 16-bit stereo)
- Includes built-in 2 x 2W stereo class D amplifier to drive 4-8 ohm speakers (up to 2.2W with 1% distortion)
- Supports 11 triggers for buttons, each triggering different audio files
- Multiple trigger modes: basic trigger, hold looping, latching loop, play next, play random
- Stereo line out is also available for headphones or external amplifiers
- Easy USB drag-and-drop programming for audio files
- Includes Audio FX sound board, header strip, and two 2-pin terminal blocks (batteries, speakers, breadboards, and switches not included)
The board is ideal for props, costumes, toys, and small portable projects, powered by 3-5V DC sources such as 3xAAA battery packs or LiPoly batteries. It cannot play MP3s due to licensing, but supports OGG format with many free converters available.
For more detailed instructions and inspiration, see the Adafruit Audio FX Sound Board Guide.