Motion sensor to signal a PC?

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I want to link a motion sensor in my house to a PC, so that I can
write a program to email me if there is activity. Is there such a
thing? I understand that some network cameras have similar functions
(for example FTP'ing file on motion sensing, or sending emails
themselves), and I have played with them in the past, but is there a
simple motion sensor equivalent?



Re: Motion sensor to signal a PC?
A loooooong time ago there was a share ware program and documentation
floating around the BBSs that allowed you to monitor a switch condition with
the serial port of a PC.  If I recall that one required a very minor
external circuit to work properly.  It was for DOS, but any decent
programmer could rewrite it using VB to do whatever you wanted or even start
a macro to send an e-mail.

I knew of one commercial application that used a variation of this for
pedestrian counters.  They used a couple specialty multi port serial cards,
and then had an external circuit board with all the trip indicators for
their photo beams.

I would ask the guys in the automation newsgroup.  This type of project is
more up their alley.

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Re: Motion sensor to signal a PC?

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You can jury rig something like that with X-10

Motion detector to X-10 powerflash
Computer with X-10 interface picks up the change
Several software packages that will send out email in response to X-10

X-10 may have other options as well these days.  Have not used it in years.

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