[Coco] OT request

Stephen Castello zootzoot at cfl.rr.com
Sun May 23 15:58:07 EDT 2004

On Sat, 22 May 2004 19:25:19 -0500, Dave Kelly
<daveekelly at earthlink.net> tortured a bunch of electrons for some
unknown reason:

>This is the only group of electronic people I know so this is where I 
>ask this kind of question.
>I want to hook my trailer into the panic alarm on my car. What I would 
>like to happen is;
>The door lock button on my key ring would activate the alarm device.
>The door unlock button would deactivate the alarm device.
>The alarm device would be attach to the trailer. When I lock the doors 
>of the car to go fishing, the alarm device is turned on.
>Someone comes along and starts fooling with the trailer. A mercury 
>switch causes a signal to be sent to the panic alarm on the car cause it 
>to go bonkers.
>I return to the car, push the red panic button on my key ring and the 
>panic alarm goes off, push the door unlock button the the alarm device 
>is deactivated.
>Noone bothers the trailer and I return and push the door unlock and go home.
>So I need:
>Circuitry, match box size.
>Water proofable.
>Anyone know is something like this is available or schematics to build one.

It would be easier to put a separate alarm system in the trailer.  If
it has ac power available, something like this would work:


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