Maker Pro
Maker Pro

007 style

I'd like to set up a walk-in sensor. Something like the things you see
in all those 007 movies. When someone walks through the door,
interrupts a laser-light at foot level.

The thing is, I don't want to spend a lot of money on it.
I was wondering if it's possible to do it with some Japanese-made-key-
chain-laser.
As I'm new at this, I don't know the name of the "light-sensor"
nether.

Well, If someone could give me a hand, I'd really appreciate.
It doesn't have to bee a big hand. Component's names would be great =)

Thx, Jc
 
J

John Popelish

Jan 1, 1970
0
I'd like to set up a walk-in sensor. Something like the things you see
in all those 007 movies. When someone walks through the door,
interrupts a laser-light at foot level.

The thing is, I don't want to spend a lot of money on it.
I was wondering if it's possible to do it with some Japanese-made-key-
chain-laser.
As I'm new at this, I don't know the name of the "light-sensor"
nether.

Well, If someone could give me a hand, I'd really appreciate.
It doesn't have to bee a big hand. Component's names would be great =)

I think this link shows the general thing you are talking
about, and you can peel enough key words from it to look
further:
http://web6.automationdirect.com/ad...-z-FARS_Series)/Through_Beam_(SS-z-FA_Series)
 
L

Lord Garth

Jan 1, 1970
0
I'd like to set up a walk-in sensor. Something like the things you see
in all those 007 movies. When someone walks through the door,
interrupts a laser-light at foot level.

The thing is, I don't want to spend a lot of money on it.
I was wondering if it's possible to do it with some Japanese-made-key-
chain-laser.
As I'm new at this, I don't know the name of the "light-sensor"
nether.

Well, If someone could give me a hand, I'd really appreciate.
It doesn't have to bee a big hand. Component's names would be great =)


Use google and look for "laser trip wire"....
http://www.fatbraintoys.com/toy_companies/wild_planet/lazer_trip_wire.cfm
cheap! They use IR diodes rather than a laser however.

or build your own

http://www.hiviz.com/tools/triggers/makeown.htm
http://www.youtube.com/results?search_query=tripwire
http://imakeprojects.com/projects/movie-style-laser-tripwire/
http://www.repairfaq.org/sam/laserclp.htm
 
H

Homer J Simpson

Jan 1, 1970
0
I'd like to set up a walk-in sensor. Something like the things you see
in all those 007 movies. When someone walks through the door,
interrupts a laser-light at foot level.

The thing is, I don't want to spend a lot of money on it.
I was wondering if it's possible to do it with some Japanese-made-key-
chain-laser.
As I'm new at this, I don't know the name of the "light-sensor"
nether.

Radio Shack sells these - eBay too. Look for Door Minder.
 
H

Homer J Simpson

Jan 1, 1970
0
Of course, in some movies the lasers aren't just covering the doors,
they create a full pattern in the room, so movement is nearly impossible,
especially if the lasers are infrared so they can't be seen normally.

And in some movies the 'lasers' are just an excuse for Catherine Zeta-Jones
to wriggle around in skin tight clothes!


--
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..
..
..
..
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..
..



--
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..
..
..
..
..
..
..
 
H

Homer J Simpson

Jan 1, 1970
0
Not that that's a BAD thing, mind you....

I'm fine with it too. Halle Berry has made a lot of bad movies wearing very
little - I wish we could have just the good parts of those!
 
B

Bob Myers

Jan 1, 1970
0
And in some movies the 'lasers' are just an excuse for Catherine
Zeta-Jones
to wriggle around in skin tight clothes!

Not that that's a BAD thing, mind you....

Bob M.
 
I'd like to set up a walk-in sensor. Something like the things you see
in all those 007 movies. When someone walks through the door,
interrupts a laser-light at foot level.

The thing is, I don't want to spend a lot of money on it.
I was wondering if it's possible to do it with some Japanese-made-key-
chain-laser.
As I'm new at this, I don't know the name of the "light-sensor"
nether.

Well, If someone could give me a hand, I'd really appreciate.
It doesn't have to bee a big hand. Component's names would be great =)

Thx, Jc

An ORP12 light dependant resistor in a potential divider circuit and a
dc amp of some kind with perhaps a relay output stage to switch
whatever you need to switch would do the trick.
My website has a system for working out all kinds of simple circuits,
which is intended for beginners, and your cicuit can easily be
assembled from these kits.
Visit www.geocities.com/sirkituk

Ed
 
J

jasen

Jan 1, 1970
0
I'd like to set up a walk-in sensor. Something like the things you see
in all those 007 movies. When someone walks through the door,
interrupts a laser-light at foot level.

The thing is, I don't want to spend a lot of money on it.
I was wondering if it's possible to do it with some Japanese-made-key-
chain-laser.
As I'm new at this, I don't know the name of the "light-sensor"
nether.

photocell, phototransistor, light dependant resistor,
Well, If someone could give me a hand, I'd really appreciate.
It doesn't haveto bee a big hand. Component's names would be great =)

try google-ing these phrases

light beam sensor schematic

photointerruptor schematic

phototransistor datasheet

investigate the first 10 hits on each.


Bye.
Jasen
 
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