Make some noise with your next project! The MP3 Trigger board is built to make MP3 sound integration easier than ever. The board has 18 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. MP3s are stored on FAT16 formatted SDSC or FAT32 formatted SDHC micro-SD flash memory cards. In addition, optimized code can achieve 192Kbps stereo playback from a wider range of cards.
The heart of the MP3 Trigger board is the Cypress PSoC CY8C29466-24SXI microcontroller which serves up MP3 data to a VLSI VS1063 audio codec IC. This version also supports an optional initialization file that can be used to set the serial port baud rate as well as to reprogram any of the 18 trigger inputs to alternate functions, including random and sequential track selection, transport controls and even volume up/down. Each conventional trigger can be set to either allow immediate restarts, or to lock out restarts if audio is playing. Also, a new trigger filename convention provides greater flexibility in naming your MP3 tracks and makes file management easier.
There is also a “Quiet Mode” feature that can be enabled via the serial control port. In this mode, the trigger inputs don’t start tracks directly, but instead produce a serial message indicating which triggers were activated. A host microcontroller can thus monitor the trigger inputs and then start any track or sequence of tracks via the serial control port, making the triggers much more flexible.
This version of the MP3 Trigger includes firmware that supports the use of an initialization file on the microSD card that can be used to change the serial baud rate, as well as to repurpose any of the 18 trigger inputs to alternate functions, such as random and sequential triggers, navigation controls and even volume controls. In addition, a restart lockout option can be used to prevent any trigger from starting a track if audio is already playing. Using these features, custom applications can often be implemented without the use of a separate microcontroller.
Note: This product is a collaboration with Robertsonics. A portion of each sales goes back to them for product support and continued development.
- Input Voltage Range: 4.5V to 12.0V DC, or regulated 3.3V (jumper selectable)
- Current Consumption: Approximately 45mA idle, 85mA playing
- Media: SDSC and SDHC microSD cards
- File system: FAT32 and FAT16
- Audio output: Headphone stereo (1/8” stereo jack)
- Trigger inputs: Logic level 3.3V–5.0V, active low inputs, w/ internal pull-ups (connector provides individual grounds, allowing switches or jumpers to be connected directly to each trigger input)
- Serial: Full duplex, 8-bit, 38.4Kbaud (default, other baud rates supported via initialization file)
- Eagle Files
- Hookup Guide
- Datasheet (VS1063)
- Datasheet (CY8C29466-24SXI)
- MP3 Trigger Support Page
- Firmware Updates
This product is listed in:
Documentation and Resources:
- How to Use Speakers and Amplifiers with Your Project
A popular question that we get all the time is ‘How do I choose a speaker or amplifier to go with my project?’. It’s a good question, and if you’re not familiar with the terminology, it can seem a bit daunting to know whether ...
- The Maker Revolution
The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...
- Sound Effects Button
The idea for this project came when a friend of mine flew over from Western Australia to visit, and during his stopover in Adelaide, he did what any adult would do; visit the airport novelty store and buy some random stuff. It was pretty much all junk, except for this big green dome button which played a different, comic voice saying ‘YES’ every time you pressed it. Simple, but, it entertained us on the drive from Syd...
We deliver Australia-wide with these options:
- $3 for Small Items (4-6 days, not tracked, only available on selected small items)
- $6.95 for Standard Post (2-4 days, tracked)
- $8.95 for Express Post (1-2 days, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)
International Orders - the following rates are for New Zealand and will vary for other countries:
- $11.49 for Pack and Track (3+ days, tracked)
- $16.50 for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount might increment based on the weight of your order.
Our physical address:
Unit 18, 132 Garden Grove Parade
Please checkout our customer service page if you have other frequently asked questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.