Skip to content
Shop Maker Guides Blog Purchase Orders & Quotes Contact 1300 240 817 team@littlebird.com.au Login / Sign Up (Optional)
Adafruit Audio FX Mini Sound Board - WAV/OGG Trigger - 2MB

Adafruit Audio FX Mini Sound Board - WAV/OGG Trigger - 2MB

We have ✅ 4 available of the AF-2342 in our Sydney warehouse. An extra 100 units available with a short lead time.

Express post delivery (2-5 business days)

The Adafruit Audio FX Mini Sound Board is a standalone audio trigger that plays WAV and OGG Vorbis files — no Arduino or programming required. Simply drag and drop sound files over USB, wire up buttons to the trigger pins, and you're ready to go. With 2 MB of built-in flash storage, it holds a few minutes of compressed stereo audio or about 30 seconds of uncompressed stereo.

Measuring just 1.5" × 0.9", this board is purpose-built for props, costumes, toys, and other portable projects. It runs from 3–5.5 VDC and features stereo line-level output for headphones, powered speakers, or an external amplifier.

Key Features

  • Standalone Operation – No microcontroller required; just power and buttons
  • 2 MB Built-in Flash – No SD card needed; a few minutes of compressed stereo audio
  • USB Mass Storage – Drag and drop files via micro USB as if it were a USB drive
  • WAV and OGG Vorbis Playback – Up to 44.1 KHz, 16-bit, stereo
  • 8 Trigger Inputs – Connect buttons or switches to trigger audio playback
  • 5 Trigger Modes – Basic, hold looping, latching loop, play next (sequential), and play random
  • Stereo Line Output – AC-coupled left and right channels
  • UART Control – 9600 baud serial interface for microcontroller integration with Arduino library support
  • Compact Size – Only 1.5" × 0.9" (38 × 23 mm)
  • 3–5.5 VDC Power – Works with AAA battery packs or LiPo batteries

Trigger Modes

  • Basic – Tnn.WAV / Tnn.OGG – Plays once when trigger pin is grounded
  • Hold Loop – TnnHOLDL – Plays and loops while pin is held low
  • Latching Loop – TnnLATCH – Toggle on/off with button press, loops until pressed again
  • Play Next – TnnNEXT0–TnnNEXT9 – Plays files sequentially on each press
  • Play Random – TnnRAND0–TnnRAND9 – Plays a random file on each press

Also Available

Ideal For

  • Props and costume sound effects
  • Interactive toys and exhibits
  • Haunted house and holiday decorations
  • Portable audio triggers for performances

Package Contents

  • 1× Adafruit Audio FX Mini Sound Board (2 MB)
Note: This board plays one sound at a time (no polyphonic playback). It supports OGG Vorbis rather than MP3 — free converters are widely available to convert MP3 files to OGG format.

The Adafruit Audio FX Mini Sound Board - WAV/OGG Trigger - 2MB appears in the following collections:

SKU AF-2342
by Adafruit