#include <Servo.h> 
Servo myservo;  // create servo object to control a servo 
void setup() { 
  myservo.attach(9); // attach the servo object on to pin 9 
  myservo.write(90); // tell servo to rotate by 90 degrees
  delay(1000);
  myservo.write(45);
  delay(1000);
  myservo.detach();
}  
void loop() {
}