There is some ST compatible hardware that has come along in the past few months that is easily half the cost of the next closest thing. Specifically, I’ve been using several GE Link bulbs ($14) and Quirky/Wink Trippers ($20) throughout my house and at those price points, I’m starting to think outside their intended purposes. I now have a few extras and want to use the hardware for more than just open/close sensors and LED lights.
I know there are several threads on making a door chime, so I’ve been thinking of taking the DC voltage going to the LEDs on the Link bulb to a doorbell/chime. There is already a SmartApp to turn on a light when a door is opened, so this seems pretty doable. I’ve pried open one of my extra Link bulbs and it looks like the LEDs are powered by 16vDC.
I’ve also taken a look at the Wink Tripper open/close magnetic sensor, and although it doesn’t have a terminal to connect auxiliary inputs, the terminals for the magnetic switch are pretty accessible and easily connected with wire. I was thinking of using this to make a $20 moisture sensor.
It seems to me we have two pretty solid options for a $20 generic sensor and $15 generic relay. Has anyone out there started experimenting with these (or other) cheap devices?