#include <Servo.h>

Servo servo;  // Create a Servo object

int servoPin = 9;  // Define the digital pin for the servo

void setup() {
  servo.attach(servoPin);  // Attaches the servo on pin 9
}

void loop() {
  // Rotate the servo to 0 degrees
  servo.write(0);
  delay(1000); // Wait for 1 second

  // Rotate the servo to 90 degrees
  servo.write(90);
  delay(1000); // Wait for 1 second

  // Rotate the servo to 180 degrees
  servo.write(180);
  delay(1000); // Wait for 1 second
}