LASER ALARM DEVICE MODEL

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Introduction: LASER ALARM DEVICE MODEL

Foreword:

As the ultimate anti-theft alarm device in sci-fi movies, laser alarm device has its invisible infrared ray available for experience and utilization, allowing you to catch the thief easily… Actually, it can be also used in this way.

Step 1:

Your pet at home may be disobedient or go to a prohibited place. Why not making a laser anti-theft alarm emitter if you have no time to guard it?

Step 2:

Today, I will introduce a simple laser alarm device model to you.

Principle: A laser emitter sends a light beam and another laser receiver receives the laser beam. When the connection is established, the alarm will be triggered if any object blocks the laser beam.

Component:

DFRduino UNO R3(similar as Arduino UNO R3

Gravity:Digital RED LED Light Module

Gravity: Digital Buzzer For Arduino

Laser Transmitter

Toggle Switches

9V battery

Jumper Wires

Making:

Step 3:

Measure relevant dimensions of laser emitter and receiver with vernier caliper and record such dimensions for using during user modeling.

Step 4:

Support of laser reception terminal

Step 5:

Base of laser reception terminal

Step 6:

Finished installation of reception terminal

Step 7:

Installation of receiver

Step 8:

Support of laser emission terminal

Step 9:

Support base of laser emission terminal

Step 10:

Support and support base

Step 11:

Switch installation

Step 12:

Welding

Step 13:

Insertion of support into the support base

Step 14:

Completion of emitter terminal

Step 15:

Done!

If you think one is not enough, you may make multiple alarm devices!

Step 16:

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looks good ive alwsae wanted to build one of these and 3D printing is a grat way to make it look good