The project also lets users send a command to the door thus enabling you to.
Use relay to control garage door.
My garage door opener comes with 4 terminals.
At the output of relay you can connect your light and door motor main power line.
Many garage doors have a beam that when tripped will stop the door.
You can switch the d1 d2 power and ground pins as you see fit.
Relay 1 is wired in the standard way and is tied to my visor control.
In addition to using a raspberry pi the project uses two sensors to determine whether or not the garage door is open.
If the door is closed the relay is open interrupting the pulse signal getting to the garage motor controller.
This can work alongside the existing buttons and remotes.
The fibaro relay switch dry contact could be used in parallel with the existing push button contacts as shown in the blow picture.
But i believe there is just one vu pin for the red relay cable on the nodemcu.
The vu offers usb power 5v which is required to power the relay.
I noticed you are already using an esp8266 for sprinkler control.
Connections are not difficult.
The input which is used for the garage door push button could also be used by fibaro relay switch to trigger the open close operation.
Just follow the below simple rule.
Relay 2 however is used only for the goodnight scene.
The two left most terminals are to control the.
The elk relay wires between the relay 2 output and the garage motor controller.
The only thing left is to wire it to your garage door.
Connecting it to vin or 3v will not work.
Control monitor your garage door with esp8266 openhab a 5v relay the project consists of an esp8266 5v relay power supply resistors and leds.
Garage shutter door and light are activated by user.
A fibaro relay switch could be used to control the garage doors as described below.
The esp8266 connects to your local wifi and runs a small web server that responds to simple http get post requests that will be sent to it via openhab.
Output pins are connected to relays.
A relay board to activate the opener this acts like a wall switch or button but the etherten pushes it instead of you.
The board is all ready to go.
Two digital pins of arduino are initialized as output to control the garage door and light.