BUILD LASER LIGHT BARRIER DETECTION USING ARDUINO AND NODEMCU
Laser light barrier detection Introduction Hardware - Software Little more about tutorial Coding - Sketch Execution INTRODUCTION In this tutorial, it is shown how to build a laser light barrier detector. It will demonstrate and show that if anything comes in-between laser light sender and receiver it will turn on LED and Buzzer will turn on. This tutorial explains the basic use of laser module and photoresistor along with how to trigger on Buzzer and LED on a specific event. HARDWARE NodeMCU Male-Female Jumper Wires BUZZER LED Laser Module Photo Resistor Resistor SOFTWARE Arduino IDE LITTLE MORE ABOUT TUTORIAL The sketch(code) written in C programming language Laser module emits the laser light The resistance of a photoresistor decreases with increase in incident light intensity. Place laser and photoresistor face towards each other. In this example we will continuously emit laser light towards photoresistor. The photoresistor will ...