#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display

#define ldrPin 34
#define ledPin 4

void setup()
{
  pinMode(ldrPin,INPUT);
  pinMode(ledPin,OUTPUT);
  lcd.init();                      // initialize the lcd 
  // Print a message to the LCD.
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("Hello, world!");
  lcd.setCursor(0,1);
  lcd.print("Skagata IOT");
  delay(3000);
}


void loop()
{
  int ADC = analogRead(ldrPin);
  if(ADC < 2000){
    digitalWrite(ledPin,LOW);
  }
  else{
    digitalWrite(ledPin,HIGH);
  }

  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("ADC= ");
  lcd.print(ADC);
  delay(500);
}