wall-e controller arduino

#include <Servo.h>

Servo myservo;  // create servo object to control a servo

void setup()
{
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
  Serial.begin(9600);
}


void loop()
{
  if(Serial.available()>0){
    byte angel=Serial.read();
    Serial.println(angel);
    myservo.write(angel);
  }
  delay(1);
}