Hello,
I'd like to start a project that will trigger my garage door to open\colose. I'm not really sure the hardware I'll need to trigger the open\close of the garage. I think I need a relay of some sort, possibly low voltage 5-20v? Does anyone have some advice on what to use? I included an image of what the wiring looks like on the garage door opener. Thanks
A relay would likely work, but you still need to know the voltage/current that will be across/through the relay so you can know what ratings you will need for the relay.
I've used a screwdriver across the control pins in a pinch 
Little guy like this would probably be enough
http://www.digikey.com/product-detail/en/9007-05-40/306-1251-ND/710440
You could measure your pins that connect when you press your wall mounted opener button, see what the open voltage is to start.
I put a multi meter on the connectors and it looks like the garage door wall switch provides a continuous 10v and a cut in that voltage opens the door. So I guess I need a switch\relay that can pass the 10v through and cut in for a few milliseconds. Would a normal relay do that? This is the relay I purchased from amazon, not sure if it is the correct type. Any ideas? Thanks.
TheFinder:
So I guess I need a switch\relay that can pass the 10v through
Voltage isn't "passed through", its "applied across". What is passed through the relays is the current, which you should measure to see how much the relay needs to support.
Would a normal relay do that?
What do you consider a "normal" relay?
By pass through I mean I need to be able to take the current power ource 10v and feed it through a relay\switch. I just don't know if regular relays support that kind of power source.
Yes. That relay has Normally Open and Normally Closed contacts.
If you need the two contacts to be connected, and then disconnected momentarily to open the door, connect the wires to the Common and NC terminals. When the relay is "triggered", the Normally Closed contacts will open as if you had pushed your opener button.