To integrate your existing conventional doorbell into any existing Z-wave eco system, you have a variety of options to go about it. The method I chose was the easiest while requiring a little more hardware in terms of having to mess with timeouts, repetitive doorbell pressing, too long presses of the doorbell, etc.
Here is the hardware (total cost $60):
Door/Window Sensor Option 1
Door/Window Sensor Option 2
The N.C. terminals of the relay are wired to the external terminal connector on the Everspring window/door sensor, preventing the sensor from always showing as tripped in the home automation system.
The relay is powered from the existing 24V power in the doorbell when the button is triggered and it also covers quick presses or long presses which otherwise could cause scene issues with your existing home automation system.
Connect the “white with blue stripe” wire and the “white with yellow stripe” wire from the relay to the transformer terminals. Then connect the solid “yellow wire” and “solid blue wire” from the relay to the wire input terminal on the Everspring door/window sensor.
Integration into Vera or any other home automation is a breeze now. You create a trigger scene.
Once the doorbell is being pressed the SM-103 will change state which you can detect with a trigger and then this could start any desired scene. As you can see in the video below the doorbell triggers a scene which makes Sonos speakers announce that somebody is at the door. You can control lights, etc as well.
If you want to get really fancy you can use PLEG and after you install the night/day plugin on Vera you could do things like “If night and doorbell pressed then enable front door light and announce on speakers” otherwise “doorbell pressed then announce on speakers”.
You will also see in the video below that the doorbell triggers the tablets to open the video app to show on all tablets in the house who is at the front door. I will cover this in the next post on how to integrate a video intercom system with the doorbell system.