#include <Servo.h>

Servo myservo;  // 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


 // attaches the servo on pin 9 to the servo object

int red = 13;
int yellow = 12;


void setup() {
  pinMode(red, OUTPUT);
    pinMode(yellow, OUTPUT);
    myservo.attach(9);
}


void loop() {
  digitalWrite(red, HIGH);
  delay(200) ;
  digitalWrite(red, LOW);
  delay(200) ;
  digitalWrite(yellow, HIGH);
    delay(200)
     ;digitalWrite(yellow, LOW);
  delay(200);



  for (pos = 0; pos <= 90; pos += 15) { // goes from 0 degrees to 180 degrees
    // in steps of 1 degree
    myservo.write(pos);              // tell servo to go to position in variable 'pos'
    delay(1);
    digitalWrite(red, HIGH);
  delay(200) ;
  digitalWrite(red, LOW);
  delay(200) ;
  digitalWrite(yellow, HIGH);
    delay(200)
     ;digitalWrite(yellow, LOW);
  delay(200);

  }
  for (pos = 90; pos >= 0; pos -= 15) { // goes from 180 degrees to 0 degrees
    myservo.write(pos);              // tell servo to go to position in variable 'pos'
    delay(1);                       // waits 15ms for the servo to reach the position
  }
}