# Seeking a component

**URL:** <https://forum.core-electronics.com.au/t/seeking-a-component/10236>\
**Category:** Uncategorized\
**Created:** [21 May 2021 00:06 UTC](https://forum.core-electronics.com.au/t/seeking-a-component/10236 "2021-05-21T00:06:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Greg163814](https://avatars.discourse-cdn.com/v4/letter/g/ee59a6/32.png) [@Greg163814](https://forum.core-electronics.com.au/u/Greg163814)\
**Post date:** [21 May 2021 00:06 UTC](https://forum.core-electronics.com.au/t/seeking-a-component/10236/1 "2021-05-21T00:06:00Z")

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An artist friend wants to make a work that emits sound when certain triggers are fired. Eg: a proximity switch or maybe a pressure pad. So, an mp3 player with a micro SD slot, connected to some switch inputs is what I think she needs. I have bought something like this in the past but can’t remember what it was called.

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**Author:** ![James](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/james/32/4400_2.png) [@James](https://forum.core-electronics.com.au/u/James)\
**Post date:** [21 May 2021 01:03 UTC](https://forum.core-electronics.com.au/t/seeking-a-component/10236/2 "2021-05-21T01:03:12Z")

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Hi Greg,

I’m going to go out on a limb and say that it’s probably the Adafruit sound boards that we offer. There’s [quite a few variants depending on how much sound you need to store, whether it needs to fit somewhere small, and whether you need an amp in-built](https://core-electronics.com.au/search/?q=adafruit+sound+board)

Have a look and get back to me if you need some more help!  
-James

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**Author:** ![Greg163814](https://avatars.discourse-cdn.com/v4/letter/g/ee59a6/32.png) [@Greg163814](https://forum.core-electronics.com.au/u/Greg163814)\
**Post date:** [21 May 2021 04:37 UTC](https://forum.core-electronics.com.au/t/seeking-a-component/10236/3 "2021-05-21T04:37:14Z")

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Thanks James,

I’m talking to the artist about space constraints etc. Apparently it is a box with a seascape inside. She wants it to play sea sounds when the box is opened.

Cheers,

Greg

 ![823DF1EDC55C46ADB1CE5F4E85AB46AB.png](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/7/7159a975d714a6caee787759490140daf4d4fda6.png)

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**Author:** ![Liam](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/liam/32/3562_2.png) [@Liam](https://forum.core-electronics.com.au/u/Liam)\
**Post date:** [21 May 2021 04:41 UTC](https://forum.core-electronics.com.au/t/seeking-a-component/10236/4 "2021-05-21T04:41:36Z")

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Hi Greg,

To follow-up on James’s response, they also go under the name of a [WAV](https://core-electronics.com.au/search/?q=wav+trigger) or [MP3](https://core-electronics.com.au/search/?q=mp3+trigger) trigger.

To get the audio triggers working with different types of sensors you will most likely need a microcontroller to act as a middle man.  
Some sensors also have thresholds that you can use to send an activating signal to the sound-board!  
Core also has these [cool boards here](https://core-electronics.com.au/voice-recorder-module-breakout.html) that could work.

I’m keen to see how your project comes out!  
Liam.