#include <Servo.h>


Servo myservo;

int pos=0;











void setup() {
  // put your setup code here, to run once:
  myservo.attach(11);

}

void loop() {
  // put your main code here, to run repeatedly:
  for(pos=0;pos<=180;pos++){
    myservo.write(pos);
    delay(15);
  }
  for(pos=180;pos>=0;pos--){
    myservo.write(pos);
    delay(15);
  }

}