Project - 3 :- Light Detector By Using Arduino

                                    PROJECT – LIGHT DETECTOR

In this tutorial we will learn how to use a LDR Sensor with Arduino and making a Light Detector to detect the Light.

                                                     STEP – 1: Components

Components Required:-

1.    Arduino Uno

2.    Breadboard

3.    LDR

4.    Wires.

                                        STEP – 2: Circuit

The connections are pretty easy, see the image above with the breadboard circuit schematic.

                                         STEP – 3 : Code

const int ledPin = 13;

const int ldrPin = A0;

void setup() {

Serial.begin(9600);

pinMode(ledPin, OUTPUT);

pinMode(ldrPin, INPUT);

}

void loop() {

int ldrStatus = analogRead(ldrPin);

if (ldrStatus <= 200) {

digitalWrite(ledPin, HIGH);

Serial.print("Its DARK, Turn on the LED : ");

Serial.println(ldrStatus);

} else {

digitalWrite(ledPin, LOW);

Serial.print("Its BRIGHT, Turn off the LED : ");

Serial.println(ldrStatus);

}

}

       /* Copy above Code and Paste in Your Arduino Sketch */

Step 4: Well Done!

You have successfully completed one Arduino Project and you learned how to use an LDR Sensor with Arduino.

                  THANKYOU!

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