const int vibrationMotorPin = 25; // Pin connected to the LED simulating vibration motor

void setup() {
  pinMode(vibrationMotorPin, OUTPUT);
}

void loop() {
  // Simulate vibration motor turning on for 500ms
  digitalWrite(vibrationMotorPin, HIGH);
  delay(500);

  // Simulate vibration motor turning off for 1000ms
  digitalWrite(vibrationMotorPin, LOW);
  delay(1000);
}