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BUILD LASER LIGHT BARRIER DETECTION USING ARDUINO AND NODEMCU

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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 ...
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IOT - Introduction

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IoT - Internet of Things Introduction Use cases and scenarios Advantages Technology stakes and Components Challenges INTRODUCTION •   It’s a system of interrelated computing devices, mechanical and digital     machines, objects, animals or people that are provided with the ability to     transfer data over a network without requiring human-to-human or human-to-     computer interaction. •   These things can be wide variety of devices such as Automobiles with     sensors, electric devices with sensor, mechanical or any object with the device     that capable of sending/receiving data to the internet. •   There’s a lot of noise at the moment about the internet of Things(or IoT) and     it’s impact on everything from the way we travel and do our shopping, the     way manufacturers keep track of inventory. •   In very short distant future, hundreds of ...
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