Hello Everybody,

Today am going to Show you “Arduino Based Laser Sensor”. I hope you all Enjoy this.. 🙂 🙂 😀


  • Arduino Board– I used the Arduino Uno
  • Some Wires
  • A breadboard
  • A LDR sensor
  • At least 1 LED light – I used “13” LED.
  • Resistors – 10 k
  • Buzzer


IMG_4524 IMG_4510

Circuit Diagram:

Block Diagram Laser

For code: Click Here

We Have finished!

Now Start some music and see the awesome lights blink with the beat of the sound!

Here is a Video How it work !

If you have any questions feel free to ask me by using the Facebook  or by commenting below.