Version 2 of the MP3 Trigger Released
by robertsonics
The MP3 Trigger at SparkFun just got better. The new version now has 18 trigger inputs (the original had 7) and sports a resident bootloader that allows firmware to be updated directly from the microSD card without the need for a hardware programmer. Same size (slightly different footprint), same price.
With the introduction of the bootloader, it’s now possible to get firmware updates and custom version over the web without you needing to purchase a hardware programmer. Even more interesting is the possibility of using the MP3 Trigger as a development board and writing your own code for it. The board schematics are available at SparkFun and the PSoC Designer IDE is a free download from Cypress. I’ll be posting some instructions shortly on how to set up the development environment so you can write firmware compatible with the bootloader. How cool is that?
Buy it now here.
4 Responses to “Version 2 of the MP3 Trigger Released”
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rgm on April 30th, 2010
It’s very cool! I’m glad this project continues to get improvements to it. Thanks for the increased pin count. The bootloader feature is very handy, but I wish the source was available so that a programming ecosystem could develop around your platform.
I hope that you’ll be able to post some updated code that takes into account some of my earlier suggestions from this thread:
http://makerjam.com/forum/mp3-trigger/comparison-to-daisy-mp3-wishlist/
(FAT32, improved serial protocol, more than 256 tracks in home dir …)
zanderl on June 1st, 2010
As with the above poster – opening up the build/source would be nice – but in lieu of that, some build help would be great! Any update on the dev environment setup?
robertsonics on June 6th, 2010
Sorry – just been busy juggling projects of late. My thinking at the moment is to release the source under the GNU General Public License. I just have to find the time fo figure out how to handle distibution, version control, etc. Any thoughts would be appreciated.
In the meantime, the most important thing about the build environment is the boot.tpl file, necessary to create a loadable hex file that’s compatible with the resident bootloader. Everything else is available: PSoC Developer from Cypress and the schematics from SparkFun, along with the boot.tlp file, give you everything you need to be able to write your own MP3 Trigger apps.
I’ll try to post at least the boot.tpl file here soon.
zanderl on June 7th, 2010
I’d be very interested in the source – or even just some help with the build environment. I don’t have a lot of experience with the semi-graphical PSoC Developer tools – so some help would be appreciated. GPLed Source would be awesome.