MP3 Trigger

MP3 Trigger

The MP3 Trigger has been replaced by a newer version MP3 Trigger V2. The new version includes more trigger inputs.

Description: Created and built by Sparkfun in collaboration with Jamie Robertson. The MP3 Trigger is quite possibly the most versatile, low-cost, low power embedded MP3 Player. The board has 7 external trigger pins that will directly trigger pre-selected MP3 tracks, and a full-duplex serial control port that provides full transport control, remote triggering for up to 256 tracks, and fast real-time volume control. The board plays the MP3 files directly from a FAT16 microSD flash card and supports 192Kbps stereo playback.  There is also an on-board navigation switch for local access and playback of all MP3 tracks on the flash card.

The board uses a Cypress PSoC CY8C29466-24SXI microcontroller and a VLSI VS1053 audio codec.

Board can be powered by an external wall wart, FTDI Basic, or raw 3.3V input.

Features:

• Input voltage: 4.5-12VDC
• Current Consumption: 45mA idle, 85mA playing
• File system: FAT16
• Audio out: line level stereo (1/8" stereo jack)
• Trigger inputs: 3.3-5V, active low inputs with internal pull-ups
• Serial: Full duplex, 8N1, 38.4K baud

Dimensions: 60 x 61 mm

References:

• Datasheet
• Schematic