3 ms·
From what if seen, most modern openers have lost the ability for a simple button to open/close the door. If you solder, even just a little, you can attach a pa
by twothamendment 5y ago
From what if seen, most modern openers have lost the ability for a simple button to open/close the door.
If you solder, even just a little, you can attach a pair of wires to the board in the wall mounted button so you can control it from whatever project you are doing. I using pins on a pi to flip a relay and complete the circuit as if I pressed the button.
- rhinoceraptor 5y agoLinus of Linus Tech Tips had a video [1] where he tried just that on a new Chamberlain opener with MyQ built in, and couldn't get it to work, the wires would act as antennas and trigger the door randomly, just from stray RF. The button panel for my ancient opener runs off of two wires, and each button is connected through a different value resistor, so I'm assuming the way it works is it measures the voltage drop to tell if you pressed the door or the light button. But, just connecting the two leads from the opener is enough to open or close the door, and I never use the built in bulbs on the opener anyways. 1: https://www.youtube.com/watch?v=x7pSkVarixU https://www.youtube.com/watch?v=x7pSkVarixU
- gregmac 5y agoI did this. Bought a LiftMaster 883LM button for mine, and soldered an extra wire to the actual pushbutton contact inside. This was cheap so I wasn't really worried about breaking it, plus it is much simpler (easier to solder) than the "big" button that has an LCD and motion sensor. Bonus is I have an extra button to control the door mounted at the front now. I did this about 8 years ago, and hooked it to an Insteon network, which is ultimately connected to my HomeAssistant setup. If I was doing it today I'd probably do the same soldering but wire it to something I could run tasmota on (and control via mqtt).