How To Build a Laser Security System
Posted on May 9th, 2010 by admin
Watch this video for a demonstration of “How To Build a Laser Security System”. To complete the task, you will need:
A laser pointer
Get started with the first step: Build the circuit. Center the microchip on the circuit board. Pop in the voltage regulator. Connect the battery clip leads to the regulator. Run 2 more leads out from the regulator. Pop in the resistor and the photo cell. Link the chip to the photo cell. Pop in the relay. Link the chip to it as well. Link the other side of the relay to “power.”
For the complete guide, go to http://www.howcast.com/videos/2947-How-To-Build-a-Laser-Security-System
Also check out Howcast for other do it yourself videos from cognitivefilms and more videos in the Science & Technology Projects category.
How can you contribute? Create your own DIY guide at http://www.howcast.com/videos/new or apply to the Howcast Emerging Filmmakers Program at http://www.howcast.com/filmmakers/apply
Duration : 0:4:4
[youtube zQK1kTh57Fk]
May 9th, 2010 at 10:13 pm
i can think of a …
i can think of a million ways this can fail and wouldnt the “ususpecting person” see all that crap around the object theyre stealing
May 9th, 2010 at 10:13 pm
Nice u got a …
Nice u got a picture of a fkin hand
May 9th, 2010 at 10:13 pm
I’m just gonna go …
I’m just gonna go to Walmart and buy all that stuff
May 9th, 2010 at 10:13 pm
this is like some …
this is like some McGuyver shit!
love this. plus.. i’m glad i got a old digi cam i don’t use.
May 9th, 2010 at 10:13 pm
i got better idea, …
i got better idea, let them trip on a wire thats attached to a gun trigger. im just sayin.
May 9th, 2010 at 10:13 pm
I spent 6 weeks to …
I spent 6 weeks to make 4 of these
May 9th, 2010 at 10:13 pm
is your stupid ” …
is your stupid “stuff” worth the time for this pain-in-the-as$ project, no f’in way!!
May 9th, 2010 at 10:13 pm
wow I’m 14 and I …
wow I’m 14 and I know what all of thes parts do if you do make it just make your own PCB. insted of a breadboard nice vid
May 9th, 2010 at 10:13 pm
@mahirtuli You …
@mahirtuli You can’t,noobs don’t know how to make it.
May 9th, 2010 at 10:13 pm
It’s called getting …
It’s called getting a lock……
May 9th, 2010 at 10:13 pm
woah dude how much …
woah dude how much items do u need? =D
May 9th, 2010 at 10:13 pm
once you hear that …
once you hear that you need that “LM741 chip” you know he’s with you.
May 9th, 2010 at 10:13 pm
why the dont u …
why the dont u just buy 1?????????
May 9th, 2010 at 10:13 pm
AGHHH TOOO MANY …
AGHHH TOOO MANY MATERIALS!!!!
May 9th, 2010 at 10:13 pm
FIrst, kipkay’s …
FIrst, kipkay’s video is so much simpler and that is a bread board not a printed circut board.
May 9th, 2010 at 10:13 pm
watch kipkay’s …
watch kipkay’s videos. way easier than this. just search “kipkay” at the top.
May 9th, 2010 at 10:13 pm
impossible, and to …
impossible, and to many materials
May 9th, 2010 at 10:13 pm
how r we suposed 2 …
how r we suposed 2 know wat a “lm741 chip” is
May 9th, 2010 at 10:13 pm
Why not just get a …
Why not just get a cheap webcam, and use the supplied motion detection software to initiate recording…
May 9th, 2010 at 10:13 pm
Where i can get a …
Where i can get a Photocell and 220 ohm resistor and the LM741 chip ?
May 9th, 2010 at 10:13 pm
NOTE!!! He is not …
NOTE!!! He is not using a circuit board, but a bread board. Just a heads up before one of you tries this and buys the wrong thing.
May 9th, 2010 at 10:13 pm
materials: …
materials: everything
ps: peanutbutter and jelly sandwich makes a great snack after wasting a day on looking for all our materials
pss: but realy peanutbutter will be needed…
May 9th, 2010 at 10:13 pm
@slico5 LOL!!!!!!!!
@slico5 LOL!!!!!!!!
May 9th, 2010 at 10:13 pm
Yeah we just have a …
Yeah we just have a lm741 chip and a 220 ohm resistor. I keep mine next to my bed
May 9th, 2010 at 10:13 pm
@MultiRcmaniac dude …
@MultiRcmaniac dude ur right!!!