RE: Re: Alarming the garage

["Paul Gale" <groups@xxxxxxx>]

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.



-----Original Message-----
From: etj_webster [mailto:etj_webster@xxxxxxx]
Sent: 09 September 2003 11:02
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: Alarming the garage



--- In ukha_d@xxxxxxx, "Paul Gale" <groups@s...> wrote:
> I've got an up and over door with electric opener - I took the
signal directly from the microswitches within the opener to tell when
the door was open, closed and partly open - interfaced this to
HomeVision. Was much cleaner than installing separate switches.
>
> May not work exactly for your situation but may be worth thinking
about?
> Paul.

Paul,
not a bad idea that.
I think I will do that as well as the dualtec approach to start with.

Cheers,
John.