#include <Servo.h>
Servo myservo;  // create servo object to control a servo
int pos = 0;   // variable to store the servo position
void setup() {
  myservo.attach(0);  // attaches the servo on pin 9 to the servo object
  pinMode(1, OUTPUT);
  pinMode(3, OUTPUT);
}
void loop() {
  for (pos = 0; pos <= 180; pos += 1) {  // goes from 0 degrees to 180 degrees
    myservo.write(pos);    // tell servo to go to position in variable 'pos'
    delay(15);            // time delay of 15 ms
  }
  digitalWrite(1, HIGH);   // turn the LED on 
  delay(15);              // time delay of 15 ms
  digitalWrite(2, LOW);     // turn the LED on 
 for (pos = 180; pos >= 0; pos -= 1) {       // goes from 180 degrees to 0 degrees
    myservo.write(pos);                     // tell servo to go to position in variable 'pos'
    delay(15);                             // time delay of 15 ms
  }
  digitalWrite(2, HIGH);      // turn the LED on 
  delay(15);                       //  time delay of 15 ms
  digitalWrite(1, LOW);      // turn the LED on 
}