#include <Servo.h>

struct myServo {
  Servo servo;
  int pos = 0;

  void attach(int pin) {
    servo.attach(pin, 500, 2500);
  }

  void swipe() {
    for (pos = 0; pos <= 180; pos += 1) {
      servo.write(pos);
      delay(15);
    }
    for (pos = 180; pos >= 0; pos -= 1) {
      servo.write(pos);
      delay(15);
    }
  }

  void angle(int angle) {
    servo.write(angle);
  }
};

struct myServo servo1;

void setup()
{
  servo1.attach(9);
}

void loop()
{
  servo1.swipe();

  servo1.angle(50);
  delay(1000);
}