SparkFun MP3 Trigger 18 Trigger inputs to Alternate Functions Random sequential Track Selection Transport Controls Even Volume upDown RealTime Volume Control FullDuplex Serial Control

Make some noise with your next project The MP3 Trigger is a versatile lowcost lowpower embedded audio unit that plays MP3 tracks directly from a FAT32 or FAT16 formatted microSD flash card to a stereo 18 35mm headphone output jack supporting up to 192kbps stereo playback The board has 18 external input pins that when pulled to ground trigger preselected MP3 tracks and a fullduplex serial control port that provides realtime volume control as well remote triggering for up to 255 tracks There is also an onboard navigation switch for local access and playback of all MP3 tracks on the flash card To get started with your MP3 Trigger youll need a few items not included To begin youll need an microSD card on which to store your mp3 files A simple way to power the MP3 Trigger while youre familiarizing yourself with it is to use a 9V wall adapter If you intend on using your MP3 Trigger with another serial device you need an FTDI Basic or other serial connection Last you will need something though which to play audio You may use headphones a 35mmto35mm audio cable to connect to an external audio source or one of our 35mm Audio pigtails to wire your MP3 Trigger to the output you desire.