How to Make a Laser Security System
People keep breaking in. Don't know who? Make a laser system.
Steps
- Set up circuit board by setting in a LM714 chip into a breadboard circuit. Next, set in a voltage regulator, put in a battery clip. Then, hook the regulator to the power, after that plug the resistor into the circuit board, plug in a photocell, then connect the chip to the photocell, then pop in a voltage relay, connect the relay to the chip, then connect the relay to the power.
- Disassemble a camera(check things you need).
- Solder the wires to the terminal.
- Reassemble the camera.
- Position the circuit inside a soap caddy with holes.
- Connect a nine volt battery to the circuit.
- Attach wires to voltage relay.
- Cut and tape coat hangers.
- Position the camera to area.
- Position laser pointer.
- Place little mirrors.
- Then, test the system by breaking the laser beam.
Video
Things You'll Need
- laser pointer
- duct tape
- small mirrors
- LM741 chip
- 220 ohm resistor
- photo cell
- 20 dollar digital camera
- extra small screwdriver
- wire coat hanger.
- thin insulated wire
- bread board circuit board
- 9 volt battery
- 9 volt battery clip
- soldering equipment
- wire cutters
- soap caddy with holes
- voltage relay
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