// Program 3 menghilangkan delay . ganti dgn millis() , multitasking mode
#define Sw1 3
#define Sw2 5
#define Pb1 2
#define Led1 10
unsigned char Status_Pb1, Status_Sw1, Status_Sw2;
unsigned char LedState;
unsigned long PreviousMillis;
unsigned int Interval = 1000;                // lamanya led on off      
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(Sw1, INPUT_PULLUP);
  pinMode(Sw2, INPUT_PULLUP);
  pinMode(Pb1, INPUT_PULLUP);
  pinMode(Led1, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  Status_Pb1 = digitalRead(Pb1);
  Status_Sw1 = digitalRead(Sw1);
  Status_Sw2 = digitalRead(Sw2);
  
  if ((Status_Sw1 == LOW) && (Status_Sw2 == HIGH) )
  {
    Serial.println("Siaga 2");
  }
  
  if ((Status_Sw1 == LOW) && (Status_Sw2 == LOW) )
  {
    Serial.println("Siaga 1");
  }
  //==================================================
  if (Status_Pb1 == LOW)
  {
      Serial.println("alarm");
      while (Status_Pb1 == LOW)
      {
          Status_Pb1 = digitalRead(Pb1);
          delay(100);
      }
      
  }
  //===============================================
  unsigned long CurrentMillis = millis();
  if (CurrentMillis - PreviousMillis > Interval)  // siklus per 1000 ms = 1detik
  {
      PreviousMillis = CurrentMillis;
      if (LedState == LOW) {LedState = HIGH;}
      else                 {LedState = LOW; }  
      digitalWrite(Led1, LedState);
  }


}