So you use it to open the garage door as you're driving up to the house?
I do not.
When you originally had a battery in it how did you keep the door from constantly opening after you closed it?
The original door OEM saftey stuff is all still in place.
Three position magnetic sensors on the two doors; and a few doo whats statements on the HAI panel and / or Homeseer Automation software.
It is using two recievers; one in the attic and one in the garage. When the two receivers get "tagged" it turns on a virtual switch (once only). When the tag leaves the area then the virtual switch turns off. You can play with it yourself to watch the serial com traffic and see when the tag appears and when it disappears. The hard solenoid switch to tag number would make the device pure hardware functioning (or both). When I first played with it there were other automation peers trying to use radio / reader RF triangulation of the tags for maybe RFID geotracking their dogs or cats in the back yard?
Well too I can see a live view of my garage door (brick mailbox is on the internet and HV / LV wired to the house) and just push a virtual button on my phone to open it..
I have multiple wired sensors for all kinds of stuff inside the garage and outside the garage. Wireless stuff as mentioned plus a small hotel like single box access point to connect to the vehicles using 802.11X (for other stuff). Cars have the OEM 3G radios plus my stuff (another radio - LTE now).
I am a bit into GPS stuff here and a few years back now. Today you can just put a radio and GPS tracking in a tiny little box pushing the data to wherever and doing if then stuff with that data; easy peasy stuff and very reasonably priced. You can also utilize APRS to do stuff like that.
Triggering (automating) the door to open or close would be an easy few programming lines on the Leviton HAI OPII panel or using my automation software. Its all connected just for that.
Many years ago in the home before this one I did automate the garage door, alarm, driveway (using optical beams and other stuff). Much "if then" stuff and I circumvented the built in GD saftey stuff to get what I wanted. My logic didn't work one day as my wife drive in to the garage while on a conference call on her cell phone. She left the car running while the garage door automatically closed because the alarm was still enabled and I had introduced some faulty logic. She did not get hurt; rather just panic for a bit.
So with the new home / garage I over engineered the automation/security pieces. Today there is a lot of wired hardware while I can use it for this or that; I do not. (mostly though everything is wired inside and out plus the added wireless stuff). I was doing a TTS announcement in Portuguese / car horn toot announcing which car had arrived. Neighbors kept asking why my garage TTS was talking in Portuguese. It wasn't loud. I did mostly to bug my wife.
I utilize blue tooth today but not for automation.
