#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd (0x27, 16, 2);
void setup() {
lcd.init();
lcd.begin(16,2);
lcd.backlight();
  pinMode(27, OUTPUT);
  pinMode(26, OUTPUT);
  pinMode(5, INPUT);
  pinMode(18, INPUT);
  pinMode(19, INPUT);
  pinMode(23, OUTPUT);
  digitalWrite(23, HIGH);
  }

  void loop() {

  if (digitalRead(5)==0){ 
    digitalWrite(26, LOW);
    digitalWrite(27, HIGH);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Relay 1 On");
}

  if (digitalRead(18)==0){ 
    digitalWrite(26, HIGH);
    digitalWrite(27, LOW);
    lcd.clear();
    lcd.setCursor(0, 1);
    lcd.print("Relay 2 On");
  }
  if (digitalRead(19)==0){
    digitalWrite(26, LOW);
    digitalWrite(27, LOW);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("relay 1 dan 2 Off");
  }
  }