After setting up the wifi data the device will restart.
Sonoff switch garage door.
These are going to the reed switch and will tell you if the garage is open or closed.
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.
This rule toggles the fake relay on the tasmota gui and can be monitored via the power1 mqtt topic.
The door sensor reed switch is now power2.
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.
Connect female end of jumper wires to gpio 14 and ground.
Here sonoff 4chpror2 wifi smart switch is a worthy investment.
Remote control automate monitor home devices like lights temperature and more.
Now here is the garage door binary sensor for the reed switch.
Use a usb cable for power.
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.
No idea how to retrofit.
Sonoff wireless wifi smart home products turn your home into a smart home at low price.
If you have eagle eyes you might note that my payload on is off.
The rest is the save as when flashing sonoff.
Also note that again yours could be named sonoff and mine is named sonoffgarage.