Automatic Electromagnetic Uncoupler

// Electromagnetic Uncoupler
const int IR_SENSOR = 2;
const int BUTTON = 3;
const int MAGNET = 9;
const int ACTIVATION_TIME = 2000; // 2 seconds

void setup() {
  pinMode(IR_SENSOR, INPUT);
  pinMode(BUTTON, INPUT_PULLUP);
  pinMode(MAGNET, OUTPUT);
}

void activateMagnet() {
  digitalWrite(MAGNET, HIGH);
  delay(ACTIVATION_TIME);
  digitalWrite(MAGNET, LOW);
}

void loop() {
  if (digitalRead(IR_SENSOR) == LOW || 
      digitalRead(BUTTON) == LOW) {
    activateMagnet();
    delay(1000); // Debounce
  }
}