RPi GPIO output when playing

I’ve been looking into this and so far have drawn a blank.

My thought is this; for those of us using our raspis with high power class a/b amplifiers, it’d be nice to have the pi send a given 5v gpio high and use that to trigger a relay to switch the power amp on and off automatically.

I think it’s something that may be selectable in the UI system menu, perhaps?

I’ve looked at a few things, but my lack of Linux/python knowledge is far from that level yet.

Any thoughts?


Hi ,
some time ago, I have start to do this :
It works, even if it wasn’t finished…
I used something like : http://www.ebay.fr/itm/5V-DC-Quatre-4-Channel-Relais-Module-Pour-Arduino-Raspberry-Pi-Pic-AVR-HK-/231613014308?pt=LH_DefaultDomain_71&hash=item35ed362124