Re: Alarming the garage

["etj_webster" <etj_webster@xxxxxxx>]

--- In ukha_d@xxxxxxx, "Paul Gale" <groups@s...> wrote:
> Interfacing with the opener may or may not be an easy task though
depending on the kit you have. In my case, there were 4 microswitches
which created a 3 bit binary sequence on 3 LED's on the door opener
PCB - I took a feed off these and fed them into a home made 'opto
isolator' (with help from Frank Mc Alinden) - a very simple circuit
with an opto IC and resistor. This ensured that the garage door
opener circuit would not interfere with the sensing circuitry
(HomeVision). HomeVision then detects the door state and my HA server
now announces door opening/closing etc via Text to Speech over the
whole house audio system. This is great as it works whether manually,
automatically or keyfob activated and can be fed into Comfort as a
manual alarm state :-)
>

Paul,
my openner is a cheapo job and only has limit switches.

Point taken about the opto isolators. I had already thought
about that and will examine how the switches are interfaced
to inside the openner before I try to link up to it.

Seems like a lot of you guys have homevision as well as comfort...
I better not start asking about that - one job at a time, eh ;-]

Cheers,
John.