Introduction: Cheap DIY LASER ALARM - Multi Functional!

Picture of Cheap DIY LASER ALARM - Multi Functional!

Hello peepz, I created a little laser alarm from a laser Emitter and a Laser receiver.

I used the ky-008 laser and the laser receiver i used is called ky-008-2 on my website.

Officially it is not called ky-008-2 but any receiver will do.

This device is multi functional, i left some ideas in the code.

Check the next step for the schematic and code.

The code is just a basic code but from here you can build many cool stuff.

So with the code you got the basics.

Step 1: The Schematic, Parts List and Code.

Picture of The Schematic, Parts List and Code.

Just wire it up like the schematic and it should work after uploading the code.

Parts list:

  1. Arduino Uno, (I used a copy which has 7 analog pins, a quality new model from 2016 called RobotDyn Uno.)
  2. 1 Channel relay ky-019
  3. Laser Sender ky-008
  4. Laser receiver ky-008-2 (i used ky-008-2 on my website as product code, i dont know the official code)
  5. buzzer
  6. 7 color led ky-034
  7. A set of Jumper wires. MM / FF / FM
  8. A power cable and a lamp fitting + lamp connected to the relay (optional)


Create something cool and show me in the comments!


About This Instructable




Bio: Hello world! I make simple & Advanced projects for people who want to learn programming and electronics. Most of my Instructables are about arduino and the ... More »
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