#include <Servo.h>

Servo myServo;

void setup() {
  myServo.attach(9); // Attach servo to pin 9
}

void loop() {
  myServo.writeMicroseconds(1500); // Stop the servo
  delay(1000);

  myServo.writeMicroseconds(1700); // Rotate clockwise
  delay(1000);

  myServo.writeMicroseconds(1300); // Rotate counterclockwise
  delay(1000);
}