Introduction: Security Alarm Laser Detector or Sensor for Arduino Beginner

Hi, guys today me and u all are going to make a laser detector work with a Arduino and piezo.

So how does it work. when the laser is blocked from the head of the module the piezo will

alarm up.

so lets start. :):):):):):):):):):):):):):):):):):):):):)!!!!!!!!!!!!!

Step 1: Gather Your Body Parts

1. Laser Detector (1)

2. Piezo (1)

3. Laser (1)

4. Arduino (1)

Step 2: Connect It to Your Body

The laser detector pins are:

VCC to 5V


OUT to pin 11

the laser pins are:

red wire or positive to pin12

blue wire or negative to GND

The piezo wires are:

positive to pin 13

negative to GND

Step 3: Give a Messge to Your Brain to Work

the code is:

Step 4: You Can Work by Your Self (body Functioning)


enjoy your sleep at night. :):):):):):):):):):)!!!!!!!!!!


isenkaya (author)2017-08-02

do you have laser detectors datasheet ?

時通訂 (author)2017-04-25

hello ~
may i ask? where u got that Laser Detector from?
brand? manufactory ? model No. ? price?

Thank you very much .

commander574 (author)2016-02-25

great idea!