With a magnet attached to the garage door the pi relies on two magnetic reed switches to check the garage door s status.
Raspberry pi wifi garage door opener without relays.
This model is necessary as it has wireless support while the raspberry pi zero does not.
The project relies on a raspberry pi zero w using 8 gb of storage on a microsd card.
While this has been done before i thought i d post my solution.
It controls the door.
Then wire the relay to the garage door opener.
The relay should be wired in the normally open position so that when activated the circuit will close and the garage door will open close.
This was my first hardware project and instructable ever and i m sure.
If the garage door is open when it shouldn t be then send a text message sms to a cell phone.
The garage door has been in continuous use since late 2014.
If you need more details follow the guide we ve written on how to use a relay with the raspberry pi.
Then wire pin 6 gnd to the gnd on the relay.
This instructable explains how i setup a raspberry pi to open my garage door using a smarthphone.
Steve placed one sensor near the ceiling and the other is on the ground.