#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);
const int led1 = 1;
const int led2 = 2;
const int led3 = 3;
int button1 = 4;
int button2 = 5;
int button3 = 6;
int statusPB1 = 0;
int statusPB2 = 0;
int statusPB3 = 0;

void setup() {
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(button1, INPUT);
  pinMode(button2, INPUT);
  pinMode(button3, INPUT);
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);

}

void loop() {
  statusPB1 = digitalRead(button1);
  statusPB2 = digitalRead(button2);
  statusPB3 = digitalRead(button3);
  if(statusPB1 == 1){
    digitalWrite(led1, HIGH);
    lcd.setCursor(0, 0);
    lcd.print("LED MERAH ON ");
  } else {
    digitalWrite(led1, LOW);
    lcd.setCursor(0, 0);
    lcd.print("LED MERAH OFF ");
  }
  if(statusPB2 == 1){
    digitalWrite(led2, HIGH);
    lcd.setCursor(0, 1);
    lcd.print("LED HIJAU ON ");
  } else {
    digitalWrite(led2, LOW);
    lcd.setCursor(0, 1);
    lcd.print("LED HIJAU OFF ");
  }
  if(statusPB3 == 1){
    digitalWrite(led3, HIGH);
    lcd.setCursor(0, 2);
    lcd.print("LED KUNING ON ");
  } else {
    digitalWrite(led3, LOW);
    lcd.setCursor(0, 2);
    lcd.print("LED KUNING OFF ");
  }
  delay(500);
}