(GDO blaQ) Security+1.0 with simple push button

Konnected Garage Door Opener
1

It seems that most people with a Security+1.0 garage door also have a “smart” wall switch, but I have a simple dumb button instead. This is apparently not unexpected as Nate has described in this older thread: Issue thread (GDO blaQ): Security+1.0 openers randomly or unexpectedly trigger opening or closing

My question is, how does Security+1.0 communication work in this case? My understanding is that the dumb button connects to the red and white slots on the garage opener itself. The white is ground and red is the communication, so presumably when I press the button, it shorts red to ground and trigger the garage door.

Now with a blaQ GDO added, won’t communication on the red line sometimes bring it low (to ground) and thus trigger the garage door?

2

Correct – On Security+1.0 openers, they will still trigger the movement of the door by a simple short across red and white. And that’s exactly how the dumb/analog wall buttons work.

These openers also respond to some data packets in the Security+1.0 protocol. And you’re right, that the data communication is done by bringing the red line low in a particular data format to send bits over the wire.

Basically, those data packets don’t bring the line low for long enough to trigger the movement of the door. I’m not sure exactly what the minimum duration to trigger the door is … but we know that the data packets do not trigger it. So, in effect, a digital device can co-exist with an analog button on the same data line.