#include <Servo.h>

Servo Servo1;
//Servo Servo2;  // create servo object to control a servo
// twelve servo objects can be created on most boards

int pos = 0;    // variable to store the servo position

void setup() {
  Servo1.attach(3);
  //Servo2.attach(6);  // attaches the servo on pin 9 to the servo object
}

void loop() {
  for (pos = 60; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
    // in steps of 1 degree
    Servo1.write(pos);              // tell servo to go to position in variable 'pos'
    // Servo2.write(pos);
    delay(30);                       // waits 15ms for the servo to reach the position
  }
  for (pos = 180; pos >= 60; pos -= 1) { // goes from 180 degrees to 0 degrees
    Servo1.write(pos);              // tell servo to go to position in variable 'pos'
    //Servo2.write(pos); 
    delay(30); 
 }
                          // waits 15ms for the servo to reach the position


}