Arduino - LDR

In this Project, we will see about how to interface LDR with Arduino and can control an LED.

Circuit Diagram:

Arduino Code:

ldr_code.ino

//This Code is Developed by Sdev
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#define ldrpin A0
#define ledpin 13

int ldrvalue;

void setup() {
  Serial.begin(9600);
  pinMode(ledpin,OUTPUT);
}

void loop() {
  ldrvalue = analogRead(ldrpin);
  Serial.println(ldrvalue);
  if(ldrvalue<900){
    digitalWrite(ledpin,HIGH);
  }else{
    digitalWrite(ledpin,LOW);
  }
  delay(100);
}

Youtube Video Tutorial:

https://youtu.be/teHiVBqBQao

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You can get the all the required files (like Circuit Diagram, Arduino.ino file, Libraries Used, and others) for the project  in ZIP format and much more...