protect your house with laser beams

protect your house with laser beams

you can protect your home and every place you want to make sure these places will be safe

and its very simple method and it s cheap method

Here is an easy to make and powerful laser alarm system that can protect your entire home, indoors or out
  

there are some steps follow these ones , but firstly see this video and this will give an over all viewabout this project and after seeing the video

the video

 

 

lets know the seven steps to make it

step 1

  what you need

 

 1.2small project boxes
2. 1 1000uF 35v Capacitor
3. 1 5K Variable Resistor
4. Photocell
5. IC Board
6. 9v battery and clip
7. 1 N3904 Transistor
8. Toggle switch
9. Small mirrors
10. HandiTak
11. 12v DC Piezo Siren - 102dB
12. Aixiz 650nm 5mw 12X30mm laser
13. Aixiz 3.2v AC Adapter

  

 step 2

build the circuit

Build the circuit based on the diagram

I cut my IC board with a dremel to make it 

smaller so there was enough room 

in the box along with the 9 v battery

and there another circuit doing the same  job

this is the  skematic just swap the led for a realy or buzzer

and these photos for variable resistor and to the transistor

npn _transistor

this is the another circuit

 

step 3

install it

 

Install the circuit board and the 9v battery in the hobby box. Line up the photocell at the hole and hot glue everything in place. Also, attach the siren and run the wiring inside the box. Finish your solder connections with the siren

step 4

build the lase rhousing

Install the circuit board and the 9v battery in the hobby box. Line up the photocell at the hole and hot glue everything in place. Also, attach the siren and run the wiring inside the box. Finish your solder connections with the siren

step 5
tweaking

Turn on the laser and point it at the photocell box. You will have to adjust the resistor so the photocell is sensitive to the laser pointing at it during the day. At night, when the laserbeam is broken, the siren will sound

step 6
mount the laser system

Decide where you want your protection, across what doorways and then decide on where you want the laser to plug in and where you want the photocell box to pick up the laser. I used 1" square mirrors (from an arts and crafts store) and HandiTak to mount the mirrors. You could use a more permanent solution for the mirrors. The idea is to angle all the mirrors to the next wall across where you want protection and then have it end up pointing at the photocell

step 7
protection on

Now when it gets dark and the laserbeam is broken, the LOUD 102dB siren will wail

protect your home by laser , laser s application , simple project by using laser 

جهاز لحمايه المنزل باستخدام الليزر , جهاز انذار بالليزر ضد السرقه