Servo motor

/*
 * Manvi Mittal
 * Servo program
 */

#include <Servo.h>

Servo miServito;

const int PotPin = A0;
int PotVal;
int angle;

void setup()
{
  // put your setup code here, to run once:
  pinMode (PotPin, INPUT);
  miServito.attach (9);
  Serial.begin (9600);
}

void loop()
{
  // put your main code here, to run repeatedly:
  PotVal = analogRead (PotPin);
  angle = map (PotVal, 0, 1023, 0, 360);
  angle = constrain (angle, 0, 179);
  miServito.write (angle);
  Serial.println (PotPin);

  miServito.write (90);
  delay (300);
  miServito.write (180);
  delay (300);
}