These are going to the reed switch and will tell you if the garage is open or closed.
Sonoff switch garage door.
This rule toggles the fake relay on the tasmota gui and can be monitored via the power1 mqtt topic.
If you have eagle eyes you might note that my payload on is off.
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This rule watches the tuyamcu packets for the garage door state open or closed via the magnetic reed switch attached to the door.
Plug the microusb cable to the nodemcu and while pressing the flash button plug in the usb into your computer.
Solder 2 lengths of small wire one on the input and one on the output these wires will connect to the switch contacts on your garage door motor.
Also note that again yours could be named sonoff and mine is named sonoffgarage.
Connect female end of jumper wires to gpio 14 and ground.
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Now here is the garage door binary sensor for the reed switch.
Powerretain 1 makes the state of the door being open or closed be retained during a home assistant reboot.
The sonoff units take mains power at one end and delivers switched mains power at the other internally they have a small transformer to run the esp8266 device and a 10amp relay to switch the power.
After setting up the wifi data the device will restart.
Use a usb cable for power.
The door sensor reed switch is now power2.
The rest is the save as when flashing sonoff.
It is an absolutely affordable wifi garage door opener that can be triggered to open or close the garage door through your smartphone instead of leaving your car.