#include <Servo.h>  
Servo myservo;  // create servo object to control a servo 
                // a maximum of eight servo objects can be created 
                 // variable to store the servo position 
 float angle = 0;
 int inbyte = 0;
// String inputString = "";         // a string to hold incoming data
 boolean stringComplete = false;  // whether the string is complete
 
void setup() 
{ Serial.begin(9600);
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object 
  myservo.write(angle);
  //pinMode(A0,INPUT);
  Serial.print("enter angle \n");
  //angle.reserve(4);
  establishContact();
} 
void loop() 
{ 
  if(stringComplete)
   {
     Serial.println(angle); 
     //angle = int(angle);
    myservo.write(angle);
    //Serial.print(angle);
    delay(1000);
  angle = 0;
    stringComplete = false;
 }
}

void establishContact() {
  while (Serial.available() <= 0) {
   Serial.println("0,0,0");   // send an initial string
    delay(500);
  }
}
void serialEvent() {
  while (Serial.available()) {
    // get the new byte:
    double inChar = Serial.read()  ; 
    // add it to the inputString:
  //  inputString += inChar;
   if (inChar != '\n')
   { Serial.print("inchar =");
    Serial.println(inChar);
    inChar = inChar - '0';
    angle = angle*10 + (inChar);
    Serial.print("angle =");
    Serial.println(angle);
     stringComplete = false;
    // if the incoming character is a newline, set a flag
    // so the main loop can do something about it:
   }
    else   
    {
      stringComplete = true;
    } 
  }
}