[mbreese]

I setup something similar years ago for my garage. Instead of looking for my phone though, I wanted a way to open the garage quickly without using the keypad. My kids were small and my hands were normally full. However, I did have an RFID ID card from $work in my back pocket. So, I placed an RFID reader at butt height. If it detected my ID (or my wife's, or keyfobs, etc...) it would trigger a relay to simulate pushing the button inside my garage to open the door. It was all controlled by an Arduino.

That was quite possibly one of the most satisfying projects I've done.

I've now since moved and don't have an attached garage anymore, so this is now sitting in a box in my basement. :(