#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define LDR 13
#define LED_1 7
LiquidCrystal_I2C lcd(0x27,20,4);

void setup() {
  Serial.begin(9600);
  pinMode(LED_1, OUTPUT);// put your setup code here, to run once:
  pinMode(LDR, INPUT);

  lcd.init();
  lcd.backlight();

  lcd.setCursor(0,0);
  lcd.print("Rangkaian LDR");
  lcd.setCursor(0,1);
  lcd.print("Cintia Sari");
  lcd.setCursor(0,2);
  lcd.print("hambatan = ");
  lcd.setCursor(0,3);
  lcd.print("LED_1 = ");
  
}

void loop() {
  int NilaiLDR = digitalRead(LDR);
  Serial.print("Hambatan : ");
  Serial.println(NilaiLDR);
  lcd.setCursor(11,2);
  lcd.print(NilaiLDR);
  delay(500);
  if (NilaiLDR==HIGH){
  digitalWrite(LED_1, HIGH);
  lcd.setCursor(8,3);
  lcd.print("ON ");
}
  
  else{
    digitalWrite(LED_1,LOW);
    lcd.setCursor(8,3);
    lcd.print("OFF");// put your main code here, to run repeatedly:

}
}