#include <Servo.h>
Servo servo;
int count = 0;


void setup() {
  servo.attach(13);

}

void loop() {
  for (count = 500; count <= 2400; count += 10){
    servo.writeMicroseconds(count);
    delay(25);
  }
  delay(200);
  for (count = 2400; count >= 500; count -= 10){
    servo.writeMicroseconds(count);
    delay(25);
  }
  delay(200);

}