# Trigger MP3 Player

**URL:** <https://community.sparkfun.com/t/trigger-mp3-player/40156>\
**Category:** Qwiic System\
**Tags:** qwiic\
**Created:** [July 29, 2020, 5:35am UTC](https://community.sparkfun.com/t/trigger-mp3-player/40156 "2020-07-29T05:35:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![spideysdouble](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@spideysdouble](https://community.sparkfun.com/u/spideysdouble)\
**Post date:** [July 29, 2020, 5:35am UTC](https://community.sparkfun.com/t/trigger-mp3-player/40156/1 "2020-07-29T05:35:14Z")

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I am using the Qwicc Trigger MP3 Player with an SD card. It is connected to an Arduino UNO that has a Sparkfun Spectrum Shield connected to it. When I connect the 3.3v from the Trigger to the 3.3v on the shield my LEDs flicker along with speakers making a humming sound. I have a cheap MP3 board set up in the same fashion but does not use the 3.3v and everything works perfectly. The reason I am needing the Trigger is so the music will stop after playing 1 song and I can add an extra button to play multiple songs. Any suggestions on how to get rid of the humming noise coming from the board? Any help is greatly appreciated.