const int pirPin = 2;    
const int ledPin = 3;    
const int buzzerPin = 4; 
const int buttonPin = 5;

int buttonState = 0;     // variable for reading the pushbutton status
unsigned long buttonPressTime = 0; // variable to store the time the button was 

void setup() {
  pinMode(pirPin, INPUT);
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);
}

void loop() {
  buttonState = digitalRead(buttonPin);

  // If the button is pressed (LOW)
  if (buttonState == LOW && digitalRead(pirPin) != LOW) {
    // Record the time the button was pressed
    buttonPressTime = millis();
    // Wait for 5 seconds while keeping the button low
    while (millis() - buttonPressTime < 5000) {
      // Keep the button low
      deactivateAlarm();
    }
    
    digitalWrite(buttonPin, HIGH);
  }
  // Check PIR sensor and button status
  if (digitalRead(pirPin) == HIGH && buttonState == HIGH) {
    activateAlarm();
  }
}

void activateAlarm() {
  digitalWrite(ledPin, HIGH);
  digitalWrite(buzzerPin, HIGH);
}

void deactivateAlarm() {
  digitalWrite(ledPin, LOW);
  digitalWrite(buzzerPin, LOW);
}