The dcm connect with door position sensor via bluetooth and return new information on your smartphone. Its main working principle is as follows. Control Your Garage Door From Your Smartphone With Chamberlains Myq Garage - Techrepublic Click to see full answer. How does a smart garage door opener work . The chamberlain myq is a great choice and retails for only $40. As just said, genie smart garage door openers work with a lot of smart devices. Whereas many smart garage door openers will use a sensor that detects movement to tell if your garage door is open or closed, the garadget smart garage door opener uses a laser that shines on a. The smart outlet will connect to the relay that will then provide input for the garage door opener. But first, here is how it works in a few sentences. Your home router receives this information and sends it to the door control module. A wireless sensor is attached to the inside to the garage door, and will tell you at the touch of a...