Subject: From: Date:

RE: [ECS] Adjusting PIR motion detector sensitivity GREAMS.VIRON.com Thu, 14 Jan 1999 15:07:20 -0600

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 Thu, 14 Jan 1999 15:07:20 -0600
I have not tried this with my Hawkeyes, but with other PIR devices, you can 
mask the outside of the white plastic lens with duct tape to directionally 
blind the sensor.  Masking tape may work as well.

-----Original Message-----
From:	MIME :dc grafx@microworks.net [SMTP:MIME :dc grafx@microworks.net]
Sent:	Thursday, January 14, 1999 1:33 PM
To:	ecs-list@netbloc.com
Subject:	Re: [ECS] Adjusting PIR motion detector sensitivity

I don't have experience with that particular model, but the PIR sensors
that I use came with small black paper decals to block unwanted areas. 
The black paper decals were to stick to the inside of the sensor's
lens.  They kept the sensor from receiving IR from certain areas.  That
type of modification should be doable to any PIR sensor.

Dan Carrington


"Bass, Bill" wrote:
> 
> This isn't exactly an ECS question, so please pardon me for being
> off topic, but I don't know a better place to ask this question.
> 
> I just installed an X10 hawkeye PIR motion sensor at my front door to
> signal when someone approaches.  The problem I have is that the
> hawkeye is so sensitive that cars driving by in front of the house
> trigger the motion sensor.  Does anybody know how to adjust the
> sensitivity or shield the detector in some way to fix this?  I am not
> opposed to opening the device and hacking the circuit as long as
> I know what to do.
> 
> Thanks,
> Bill Bass
> Sr. Consultant Programmer/Analyst
> Advanced Technology Systems Inc.
> Greenville, South Carolina, USA
> 
> P.S. Does anyone know of an email list like this for general home
> automation discussion, rather than product specific?

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