#include <Servo.h>
Servo myservo1;
int pos = 0;

void setup() {
  myservo1.attach(5);
}

void loop (){

  for (pos = 0; pos <= 180; pos +=1)
  {
    myservo1.write(pos);
    delay(5);
  }

  for (pos = 180; pos>= 0; pos -= 1)
  {
     myservo1.write(pos);
    delay(5);
  }


}