Re: Re: X10 retrofit - part 2

[ian.bird@xxxxxxxxxxxxxxxxxxxxxxx]

The PIR route didn't work for me as the door is passed without entering
a=20
lot of the time. The IR beam is on the very outside of the door frame.
It=20
has proven very good over the years and since we tend not to run into
the=20
kitchen there are few problems. I can see why your door with no frame=20
would be a challenge though :-(

Ian







"Marcus Warrington" <marcusw@xxxxxxx>
11/11/2004 12:05
Please respond to ukha_d

=20
To:     <ukha_d@xxxxxxx>
cc:     (bcc: Ian Bird/CV/Novartis)
Subject:        [ukha_d] Re: X10 retrofit - part 2



Ian,
Mmmm.. getting wires to both sides of the door way would be tricky
I have seen units that have the TX and RX in one unit and bounce the=20
beam off a reflective disc which may be better suited to my needs.=20

The doorway does not have any frame or architrave, its just a plastered=20
hole
in the wall, so mounting/feeding wire to both sides is a pain.

Having said that, =A37.99 sounds pretty cheap so it may be worth the
hassle=
.

Since X10 signals take about a second to be sent, how far back have you=20
placed
the IR beam .. I would assume you'd need to place it before the kitchen=20
entrance..
in order for HV to have time to turn the light on before you enter the=20
kitchen.
I'm thinking that "maybe" a hardwired ceiling PIR mounted just in
front of=
=20
the=20
doorway and masked down to a 1 foot square might give better results.=20


=20







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