#include <LiquidCrystal.h> 
const int ledpin=13;
const int ldrpin=A0;
int threshold=600;
const int rs=12, en=11, d4=4, d5=5, d6=6,d7=7;
LiquidCrystal lcd(rs,en,d4,d5,d6,d7);
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(ledpin, INPUT);
  pinMode(ldrpin, OUTPUT);
  lcd.begin(16,2);
}

void loop() {
  // put your main code here, to run repeatedly:
  int ldrstatus=analogRead(ldrpin);
  if(ldrstatus<=threshold){
    digitalWrite(ledpin, HIGH);
    lcd.setCursor(0,0);
    lcd.print("It's Dark");
  }
  else{
    digitalWrite(ledpin, LOW);
    lcd.print("Its Day");
  }
}