#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
int en = 1450;
int servo_wait = 50;
void setup()
{ Serial.begin(57600);
   pinMode(12, OUTPUT);
  myservo.attach(9);
      //  digitalWrite(12, LOW);
      //  delay(200);
        myservo.write(pos);
        myservo.detach();
}

void loop()
{
  for(pos = 0; pos <= 180; pos += 1)
  {
  myservo.attach(9);
        myservo.write(pos);
myservo.detach();
        delay(en);
  }
  for(pos = 180; pos>=0; pos-=1)
  {
  myservo.attach(9);
        myservo.write(pos);
myservo.detach();
        delay(en);
  }
}