#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2); // alamat I2C LCD

#define PB1 5
#define PB2 6
#define PB3 7
#define LED_RED 2
#define LED_GREEN 3

void setup()
{
  pinMode(PB1, INPUT_PULLUP);
  pinMode(PB2, INPUT_PULLUP);
  pinMode(PB3, INPUT_PULLUP);
  pinMode(LED_RED, OUTPUT);
  pinMode(LED_GREEN, OUTPUT);

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

void loop()
{
  if (digitalRead(PB1) == LOW)
  {
    lcd.clear ();
    digitalWrite(LED_RED, HIGH);
    lcd.setCursor(0, 0);
    lcd.print("LED MERAH ON     ");
  }
  else if (digitalRead(PB2) == LOW)
  {

    digitalWrite(LED_GREEN, HIGH);
    lcd.setCursor(0, 1);
    lcd.print("LED HIJAU ON     ");
  }
  else if (digitalRead(PB3) == LOW)
  {
    lcd.clear();
    digitalWrite(LED_RED, LOW);
    digitalWrite(LED_GREEN, LOW);
    lcd.setCursor(0, 0);
    lcd.print("LED OFF          ");
  }
  
}