How To: Control Your Garage Door Using Your Mobile Device With a Raspberry Pi and a Little Elbow Grease

Garage door openers are pretty sweet, but most of the units we have installed in our homes are so last century, requiring a boxy remote to open the door from outside.

Source: http://www.intomobile.com/2014/12/17/control-garage-door-using-mobile-device-raspberry-pi-little-elbow-grease/