#include <Servo.h>

Servo myservo;  // create servo object

void setup() {
  myservo.attach(9);  // attach to a PWM pin
}

void loop() {
myservo.write(0); //position angle
delay(1000);  
myservo.write(30); //position angle
delay(1000);     
myservo.write(180); //position angle
delay(1000);
myservo.write(75); //position angle
delay(1000);  
myservo.write(120); //position angle
delay(1000);  
}