VisionSet wrote:
"Simon" wrote in message
...

I'm currently adding a bit of security to my house by buying some
cheap
wireless PIR sensors and receivers from
http://www.screwfix.com/app/sfd/cat/cat.jsp?cId=101495 , interfacing a
PC

So you have your PC on all the time. I'd definitely want to avoid that if
possible.


An old P1 laptop sounds like a good candidate, pref with a backup
spare.


NT