Re: Re: Motion Sensors

["Frank Mc Alinden" <armagh@xxxxxxx>]

Hi Graham
               
Had a look at the beambar thingy . I did a 4 beam thingy for
a friend who  designs some security products and he was using it as
a
presence sensor....The code could be modifed (pic controlled) to sense
direction , but the price of the beambar doesnt seem expensive so may not
be
at all viable for a home brew unit........


Frank
----- Original Message -----
From: "graham_howe" <graham@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Saturday, August 10, 2002 1:50 AM
Subject: [ukha_d] Re: Motion Sensors


> --- In ukha_d@y..., Frost Neil <Neil.Frost@s...> wrote:
> > www.phaedrusltd.co.uk
> >
> Thanks for that, the motion bar does look pretty good, but I think
> that it's length (300mm) might be a problem for installation in
> a 'normal' home environment. For example I have several situations
> where a there is a door between rooms and the thickness of the
walls
> either side of the door frame is less than 30cm. I guess the
solution
> would be to mount the units in the floor and ceiling, but carpet
> would then be a problem. I wonder if a smaller (maybe 2 beam)
version
> could be developed, or whether that would be unreliable.
>
> Graham
>
>
>
> For more information: http://www.automatedhome.co.uk
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