On 2/20/2012 5:09 PM, David Duffy (AVD) wrote:
> red, and particular lens patterns are used for particular targets
> Hi Joe,
> I might revisit the PIR modules.  Finding something sturdy enough as an
> off the shelf product is the ideal scenario.  We *could* build sensors,
> but I'd rather not just yet as it's just an idea with no commitment to
> bulk quantity yet.  If I could buy a ready to go sensor with a cable
> tail for under $50 in small quantity that would suffice.  If the idea
> gets up, then we can look at custom made sensors to get the price down.
> David...
>

Zilog makes a cheap one supposedly good to 5 meters: 269-2513-ND for=20
about $6.00
If it senses too broad, you can shutter it a bit to narrow the view. =20
Think "barn doors" on photo lighting equipment.

Sparkfun has some also.
--=20
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