/* Conecte el servomotor al pin 9 del Arduino
*/

#include <Servo.h>

Servo myservo;

int pos = 0;
int del = 49;

void setup() {
  myservo.attach(9);
}

void loop() {
  for (pos = 73; pos <= 106; pos += 1) {
    myservo.write(pos);
    delay(del);
  }
  for (pos = 105; pos >= 74; pos -= 1) {
    myservo.write(pos);
    delay(del);
  }
}