#define LED_hijau 3
#define LED_kuning 4
#define LED_merah 5
#define tombol 6
int status = 0;
#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

void setup() {

  pinMode(LED_hijau, OUTPUT);
  pinMode(LED_kuning
, OUTPUT);
  pinMode(LED_merah, OUTPUT);
  pinMode(tombol, INPUT);
  digitalWrite(LED_hijau, LOW);
  digitalWrite(LED_kuning, LOW);
  digitalWrite(LED_merah, LOW);
}

void loop() {
  if(digitalRead(tombol) == HIGH){
    status++;
    delay(100);
  }

  if(status == 1){
    digitalWrite(LED_hijau, HIGH);
    digitalWrite(LED_kuning, LOW);
    digitalWrite(LED_hijau, LOW);
      lcd.begin(16,2 );
  lcd.print("JALAN!!!");
  }
  else if(status == 2){
    digitalWrite(LED_merah, LOW);
    digitalWrite(LED_kuning, HIGH);
    digitalWrite(LED_hijau, LOW);
    lcd.begin(16, 2);
  lcd.print("HATI HATI!!");
  }
  else if(status == 3) {
    digitalWrite(LED_merah, HIGH);
    digitalWrite(LED_kuning, LOW);
    digitalWrite(LED_hijau, LOW);
      lcd.begin(16, 2);
  lcd.print("BERHENTI!!!");
  } 
  else if(status == 4) {
    digitalWrite(LED_merah, HIGH);
    digitalWrite(LED_kuning, LOW);
    digitalWrite(LED_hijau, LOW);
      lcd.begin(16, 2);
  lcd.print("BERHENTI!");
    delay(3000);
    digitalWrite(LED_merah, LOW);
    digitalWrite(LED_kuning, HIGH);
    digitalWrite(LED_hijau, LOW);
    lcd.begin(16, 2);
  lcd.print("HATI HATI!!");
    delay(4000);
    digitalWrite(LED_merah, LOW);
    digitalWrite(LED_kuning, LOW);
    digitalWrite(LED_hijau, HIGH);
    lcd.begin(16, 2);
  lcd.print("JALAN");
    delay(5000);
    digitalWrite(LED_merah, LOW);
    digitalWrite(LED_kuning, HIGH);
    digitalWrite(LED_hijau, LOW);
    lcd.begin(16, 2);
  lcd.print("HATI HATI!!");
    delay(4000);
  }
  else if(status == 5) {
    status = 0;
  }
  else {
    digitalWrite(LED_hijau, LOW);
    digitalWrite(LED_kuning, LOW);
    digitalWrite(LED_merah, LOW);
  }
}