#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

#define pinLed_Kuning 19
#define pinLed_Hijau  18
#define PB_Kuning     14
#define PB_Hijau      12
#define pinBuzzer      5
unsigned char Status_PB_Kuning, Status_PB_Hijau;
unsigned char Counter;
unsigned long PrevMillis, Interval = 500;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(pinLed_Kuning, OUTPUT);
  pinMode(pinLed_Hijau, OUTPUT);
  pinMode(PB_Kuning, INPUT);
  pinMode(PB_Hijau, INPUT);
  lcd.init();
  lcd.backlight();
  //Setup Awal Ketika Running
  lcd.setCursor(3,0);
  lcd.print("TOLI 3A");
  lcd.setCursor(0,1);
  lcd.print("Count:");

}
void loop() {
  Status_PB_Kuning = digitalRead(PB_Kuning);
  Status_PB_Hijau  = digitalRead(PB_Hijau);
  if (Status_PB_Kuning == 1){
      Counter++;
      lcd.setCursor(6,1);
      lcd.print(Counter);
      while (Status_PB_Kuning == 1){
        Status_PB_Kuning = digitalRead(PB_Kuning);
        Serial.println("Blocking...");
        delay(100);
      }
  }
  //==== program count down ===

  //==== indikator mikon on off ==================
  if (millis() - PrevMillis >= Interval){
    PrevMillis= millis();
    digitalWrite(pinLed_Hijau, !digitalRead(pinLed_Hijau));
  }
  //---------------------------------------------
  if (Counter == 10){
    for (i=0;i<10;i++){
      tone(pinBuzzer, 100);
      delay(200);
      noTone(pinBuzzer);
    }
  }
  
  //-----------------------------------------------
  delay(100); // this speeds up the simulation
}