Part SKU: com-15007 & WIG-13720
Notes: Unable to get the mp3 triggger card to recognize the files on the brandx sdmicro card both items purchased from sparkfun.
When I power up the card with the SD inserted in the slot, only get a single blink for the status light. According to the docs, this means the card is not recognized. The mp3 trigger is powered through the barrel jack with a wall wart 9v dc power supply.
I have formatted the micro card 2x once as FAT and again as FAT32. I have added mp3 files that I have ripped as well as the sample mp3 files from the websites links on the webpage. Neither are recognized. Was able to play the files through a basic media player on my PC desk top, right off the microSD card through a usb reader device. So I believe that the files are not corrupt.
I do get the LED power on light and can switch the mp3 trigger card on and off.
hit a brick wall here, please help. (I have a big project for school I am working on)
It could be a problem with the MP3 Trigger or a bad SD card.
Have you tried a few other SD cards to see if those work?
Hello, The issue appears to be with the SD card, I purchased a new sandisk 32 gb sdhc and it works. I bought the SD microcard from you so what do I do to return or get credit?
also, are there any sample wireing diagrams to reference? Wanted to properly pin each mp3 file to just one trigger pin.
Thanks
Hi Piney.
What’s your order/invoice number? I can take care of getting you a credit for the SD card but I’ll need that to do it. You can either reply here or PM me with that.
Also, which MP3 trigger do you have? Is it the [Qwiic MP3 Trigger or the [Robertsonics MP3 Trigger? The directions are different for each. (You might have a look at the hookup guide to see if that answers your questions too.)](MP3 Trigger - WIG-13720 - SparkFun Electronics)](SparkFun Qwiic MP3 Trigger - DEV-15165 - SparkFun Electronics)
Order #: 5820374
it’s the robertsonics mp3 trigger. knowing all the right libraries to use and how to code the pins correctly is my stumbling block. If there are some code sketch samples you like, please let me know. Having some trouble sorting through ones for the wav vs trigger shield, vs qwiic vs. other cards.
Thanks
OK Piney, I put in a request for a refund for that SD card. It may take a day or two for that to process and it could take 5 business days for your bank account to show the refund, but it’s in the works. 
I don’t happen to have any example code for the MP3 Trigger, but there are two ways to control it with Arduino.
The first way would be to write a sketch that pulls Arduino pins to ground and connect those to the MP3 Trigger. When you want to play a track, just do a digital write low to whatever pin you need to trigger and the MP3 Trigger will play that track. This would probably be the easiest way to control the MP3 Trigger with an Arduino if you’re not really great writing code.
The other way would be to use serial control on the MP3 Trigger via the serial header on the edge of the board. Our hookup guide doesn’t have any example code, but does contain the serial protocol needed to communicate with the board. You’d need to write a sketch that uses the commands in the serial protocol to control the board.
Another alternative that uses serial is a Arduino library that a third party has written and you can find that at the link below.
https://github.com/sansumbrella/MP3Trigger-for-Arduino
I haven’t tested this library and can’t offer any support for it but there is some example code provided with the library that should get you started.
Hello, Thanks for the additional help, the trouble is I can’t seem to locate a simple test sketch to use and run testing the pins on the board, everything on the forums. Including the Robertsonic are running the mp3 trigger with a serial connection, please help!
Thanks
I’m afraid I don’t know of a simple test sketch and you’re probably going to have to write one on your own unless you can find something online.
There is a tiny bit of example code in the library I linked above though if that helps. You will need to read through the keywords.txt and mp3trigger.h files in the library to see what command options there are. (Sadly, there isn’t much documentation available for the library.)