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Posted by Gunner Asch on June 17, 2008, 1:22 am
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On Mon, 16 Jun 2008 20:52:34 -0700, Larry Jaques
>On Mon, 16 Jun 2008 11:55:31 -0700, with neither quill nor qualm,
>
>>On Mon, 16 Jun 2008 17:19:00 GMT, _
>>
>>>On Mon, 16 Jun 2008 12:08:42 -0500, Randy wrote:
>>>
>>>> My shop has no windows so on nice days I like to keep the overhead
>>>> door open. Well some kid watched me welding for awhile then decided
>>>> it was safe - snuck in and stole my laptop computer that was connected
>>>> to my CNC mill.
>>>>
>>>> Got him on video, filed a police report.
>>>>
>>>> I need some kind of photocell and beam across the doorway to alert me
>>>> if anyone walks in. Can garage door safety beams be used? I have a
>>>> couple of friends that can wire up or build me a circuit to make them
>>>> work, I just don't know how the work, is there a NO or NC output on
>>>> those? I was told you cannot just jumper them out, so I'm thinking
>>>> it's more like a signal output rather than a switch closure output.
>>>>
>>>
>>>Large dog.
>>
>>which reminds me...Ill be having another group of pups available in
>>the next 4 months...seems I didnt catch mommy dog going into heat soon
>>enough to put her in the kennel.
>
>Not AGAIN!?! That's irresponsible, mon. 50 demerits.
sigh..yes indeed. I didnt get home for 3 weeks..and the ex is a
ditz.
shrug
at yoyodyne they were all veterans of the psychic wars
exiled from the eighth dimension where the winds of limbo roar"
mariposa rand mair theal
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Posted by Robert Swinney on June 16, 2008, 2:09 pm
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My shop has no windows so on nice days I like to keep the overhead
door open. Well some kid watched me welding for awhile then decided
it was safe - snuck in and stole my laptop computer that was connected
to my CNC mill.
Got him on video, filed a police report.
I need some kind of photocell and beam across the doorway to alert me
if anyone walks in. Can garage door safety beams be used? I have a
couple of friends that can wire up or build me a circuit to make them
work, I just don't know how the work, is there a NO or NC output on
those? I was told you cannot just jumper them out, so I'm thinking
it's more like a signal output rather than a switch closure output.
Thank You,
Randy
Remove 333 from email address to reply.
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Posted by Lloyd E. Sponenburgh on June 17, 2008, 7:21 am
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> I need some kind of photocell and beam across the doorway to alert me
> if anyone walks in. Can garage door safety beams be used? I have a
> couple of friends that can wire up or build me a circuit to make them
> work, I just don't know how the work, is there a NO or NC output on
> those? I was told you cannot just jumper them out, so I'm thinking
> it's more like a signal output rather than a switch closure output.
Since most are two-wire affairs, it might not be easy to interface to the
sensor circuit directly, but ...
Most of the garage door safety beams have an LED on the receiver that is
ON when the beam is on, and blinks when the beam is interrupted.
So -- just pick up the LED signal, and process that.
LLoyd
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Posted by ED on June 16, 2008, 3:10 pm
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>My shop has no windows so on nice days I like to keep the overhead
>door open. Well some kid watched me welding for awhile then decided
>it was safe - snuck in and stole my laptop computer that was connected
>to my CNC mill.
>
>Got him on video, filed a police report.
>
>I need some kind of photocell and beam across the doorway to alert me
>if anyone walks in. Can garage door safety beams be used? I have a
>couple of friends that can wire up or build me a circuit to make them
>work, I just don't know how the work, is there a NO or NC output on
>those? I was told you cannot just jumper them out, so I'm thinking
>it's more like a signal output rather than a switch closure output.
>
>Thank You,
>Randy
>
>Remove 333 from email address to reply.
The video sounds interesting care to share some
details?
I have one of these: http://www.drivewayalert.com/
and one of these: :http://www.gtoinc.com/
and a couple of dogs in an electric fenced yard.
The fence doubles as a inductive loop security system.
The fence keeps the dogs in and unwanted visitors out
The owner is known to be armed.. ED
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Posted by Randy on June 17, 2008, 9:32 am
Please log in for more thread options wrote:
>
>>My shop has no windows so on nice days I like to keep the overhead
>>door open. Well some kid watched me welding for awhile then decided
>>it was safe - snuck in and stole my laptop computer that was connected
>>to my CNC mill.
>>
>>Got him on video, filed a police report.
>>
>>I need some kind of photocell and beam across the doorway to alert me
>>if anyone walks in. Can garage door safety beams be used? I have a
>>couple of friends that can wire up or build me a circuit to make them
>>work, I just don't know how the work, is there a NO or NC output on
>>those? I was told you cannot just jumper them out, so I'm thinking
>>it's more like a signal output rather than a switch closure output.
>>
>>Thank You,
>>Randy
>>
>>Remove 333 from email address to reply.
>
>
> The video sounds interesting care to share some
>details?
>
About 6 min long, 65 meg file. Don't know about the legal
ramifications of putting it on youtube. Guy goes form watching me to
checking out the pickup truck several times. I guess when he fiqures
I'm busy welding he comes in sees the laptop and takes off with it,
does spend enough time to take the power adaptor too.
Pawn shops I checked at said they would not even buy something that
old. I need old because I need a serial port.
Thank You,
Randy
Remove 333 from email address to reply.
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