quote:
Originally posted by Mike
Also, I should be able to use power from a USB port, right?
You can easily draw 500mA at 5V from a Usb port. If you wanted to get really fancy you could throw some transistors and a flip flop and have it USB controlled, but I'd stick to just getting it working.
All kidding aside, Getting power should be no problem though, just make sure your relays aren't too power hungry. Interfacing with USB is much harder and probably way overkill for your application.
I'm pretty sure that diagram is correct if your inputs are on the bottom. Not sure if it'd work in both directions. I'm assuming that when you're in your PC position the plan is to simply turn off the centre channel. Also: save yourself some connections and don't bother running the sub through the relay.
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