mp3 trigger button volume control

Development Boards Arduino
1

Hello all. I’d just like to check one thing before I go ahead and spend a fortune on a couple of mp3 triggers…

I need a track to play, but the volume to increase from off to high when a button is unpressed… basically, I have a small door in my project, that when closed completes a circuit (essentially the same as a pressed switch), then when it is opened it breaks the circuit, triggering the volume to come on. Can this be achieved, even by using the trigger in conjunction with an Arduino?

2

Well, you can certainly do this using an Arduino with the MP3 Trigger. You can start/stop tracks and send volume commands over the serial control port. The User Manual details how to use the serial control port to control the MP3 Trigger from another microcontroller.

But if all you are going to do is turn the volume either on or completely off, how is this different than just starting and stopping a track, which you can do without an Arduino?