#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);
  pinMode(LDR, INPUT);

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

  lcd.setCursor(0,0);
  lcd.print("Rangkaian LDR");
  lcd.setCursor(0,1);
  lcd.print("Ais NP");
  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.print(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");
  
  }
}