I presume an ordinary lamp with incandescent bulb that is fed enough  
current to make it glow
red would trip the PIR if it went on/off every few minutes.
gus


> On May 22, 2010, at 10:14 AM, Oli Glaser wrote:
>
> Everything that has been mentioned, plus I'm thnking an IR laser
> diode/pointer pulsed directly at the sensor occasionally might work  
> (sort of
> a "brute force" approach, which may trick it into thinking movement is
> taking place) Another reason for this is (not that I know anything  
> about PIR
> nor have I used it) doesn't it (usually) have to be a rather large IR
> emitting body? i.e. so small amimals and such cannot activate the  
> sensor
> easily?  That's another option of course - bring a largish animal  
> with you
> and let it loose in the room overnight :-)
>
>
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist