int ldr=5;
int led=10;
void setup() {
 pinMode(ldr, INPUT);
 pinMode(led, OUTPUT);

}

void loop() {
int i=digitalRead(ldr);

  if(i==HIGH)
  {
   digitalWrite(led, HIGH);

  }
  else
  {
    
     digitalWrite(led, LOW);
  }
}
//Sidharth PRN