> depending on what wavelength of IR it's sensitive to it could be
> used to
> measure temperature, to detect fires, or to detect intruders.
> when used
> in a "motion" detector they are usually used with lenses that
> have bands
> or grids of blind spots so that when someone walks past they are
> alternately seen and not seen and thus generate a series of
> pulses, this
> way you can avoid trips from heat ducts and such and only see
> things
> moving across the field of view.


Does this mean that my PIR motion sensor on my little robot can be used =
not just to detect motion, but as well to find warm things?  So I could =
put it on a servo and it could hunt down my cat?

I have some experimenting to do!  Thanks!

---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.699 / Virus Database: 456 - Release Date: 6/4/2004
=20

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads