#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 20, 4);
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
}

void loop() {
  // put your main code here, to run repeatedly:
  int ldrValue = analogRead(A0);
  //Serial.println(ldrValue);
  delay(200);
  lcd.setCursor(3, 0);
  lcd.print("VALUE: ");
  lcd.print(ldrValue);
  
  if (ldrValue<80){
    analogWrite(3, HIGH);
  }else{
    analogWrite(3, LOW);
  }

  delay(1250);
  lcd.clear();
}