#include <LiquidCrystal.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd (0x27 , 20,4);

int LED1 = 1;
int LED2 = 2;
int LED3 = 3;
int button1 = 11;
int button2 = 12;
int button3 = 13;
int statusbutton1 = 0;
int statusbutton2 = 0;
int statusbutton3 = 0;



void setup() {
pinMode(LED1, OUTPUT);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
pinMode(button1 , INPUT);
pinMode(button2, INPUT);
pinMode(button3, INPUT);
lcd.backlight();
lcd.init();
}


void loop() {
 statusbutton1=digitalRead(button1);
 statusbutton2=digitalRead(button2);
 statusbutton3=digitalRead(button3);

 if (statusbutton1==HIGH){
  digitalWrite(LED1, HIGH);
  digitalWrite(LED2, LOW);
  digitalWrite(LED3, LOW);
  lcd.setCursor(0,0);
  lcd.print("LED MERAH ON");
  delay(500);
  lcd.setCursor(0,1);
  lcd.print("LED HIJAU OFF");
  delay(500);
  lcd.setCursor(0,2);
  lcd.print("LED KUNING OFF");
  }


  else if(statusbutton2==HIGH){
  digitalWrite(LED1, LOW);
  digitalWrite(LED2, HIGH);
  digitalWrite(LED3, LOW);
  lcd.setCursor(0,0);
  lcd.print("LED MERAH OFF");
  delay(500);
  lcd.setCursor(0,1);
  lcd.print("LED HIJAU ON");
  delay(500);
  lcd.setCursor(0,2);
  lcd.print("LED KUNING OFF");
 }

 else if(statusbutton3==HIGH){
  digitalWrite(LED1, LOW);
  digitalWrite(LED2, LOW);
  digitalWrite(LED3, HIGH);
  lcd.setCursor(0,0);
  lcd.print("LED MERAH OFF");
  delay(500);
  lcd.setCursor(0,1);
  lcd.print("LED HIJAU OFF");
  delay(500);
  lcd.setCursor(0,2);
  lcd.print("LED KUNING ON");
 }
 
}