/*
 * Doorbell
 * By: Luis Alejandro Domínguez Bueno
 * On: 2024/02/19
 */

#define PIN_BUZZER 13
#define PIN_BUTTON 4

void setup() {
  pinMode(PIN_BUZZER, OUTPUT);
  pinMode(PIN_BUTTON, INPUT);
}

void loop() {
  if (digitalRead(PIN_BUTTON) == LOW) {
    digitalWrite(PIN_BUZZER, HIGH);
    delay(500);
    digitalWrite(PIN_BUZZER, LOW);
    delay(500);
    digitalWrite(PIN_BUZZER, HIGH);
    delay(500);
  } else {
    digitalWrite(PIN_BUZZER, LOW);
  }
}