> > Why? You planning a burglary or something?!
> No I am just trying to figure out how reliable these things can be.
Door and window contacts. Window alarm screens or vent switches if you want
ventilation on your perimeter. Back it up with quality acoustic glassbreaks
like the Caddx2000 or Intellisense FG1525s. Put motion sensors on key areas
like your big entertainment room, master bedroom, home office, and certainly in
any room dedicated to an expesive hobby.
Also add item specific detection. Contact the doors of your liquor cabinet if
you have *agers or will soon. Certainly contact the doors of your gun
cabinet and lock it.
Add independent sounders on doors that open onto swimming pool areas.
Plant rose bushes or other thorny shrubs under blind windows.
Get a nice security door on your front door.
etc etc etc
A motion sensor should be part of your security system, but you should not
depend on it alone.
Personally I would go with an Aleph XP-40 motion sensor over the one you
suggested. It is about the same price and has some adjustability. Also, it
will be consistant. It will always be made by Aleph. Radio Shack motions vary
in configuration and could be made by anybody.
Bob La Londe
The Security Consultant
849 S Ave C
Yuma, Az 85364
ROC 103044, C-12
ROC 103047, L-67
Quote:>I am wondering if anyone knows how to get by or deactivate the
>RadioShack motion detectors.
Works well. Kinda hard to do that though when you are carrying a wide screen
TV out the door.
Just kidding. ;-)
Quote:> I am wondering if anyone knows how to get by or deactivate the
> RadioShack motion detectors.
I bought one of those cheap (5$ cdn) IR receiver module from radio shack
a while ago to use in my robot as obstacle detection/collision
I heard those were "cheaper" or at least different of the sharp one
which have a different passband frequency (40Khz vs 38Khz).
Now, last night I plugged in mine to play around with it and after
connecting the +5V and Ground pins to my protoboard I displayed the Vout
pin on my scope's screen. I was surprised to have a high (~5V) signal by
default, but then I remembered that the IR module asserts low when it
detects incoming IR. Anyways, the problem is that even with no IR (I
used a TV remote control as a test) hitting the module the scope kept
showing glitches (low) randomly (I think?) on the screen!
What have I done wrong? is it possible my module is bad or I have a
noise problem? Or is this normal?
I just though that I might ask you guys before trying to implement
anything with my PIC just to prevent a major headache!
Thanks in advance,
(remove the "TRYME" in my email address to reply)
Atlantis Scientific Inc.
20 Colonnade Rd. Suite 110
tel: (613) 727-1087
fax: (613) 727-5853