void setup() 
{
  Serial.begin(9600);
  pinMode(9,OUTPUT);
  // put your setup code here, to run once
}

void loop() 
{
  int P;
  for(P = 0;P<= 255;P = P+1)
   {
     Serial.print(P);
     analogWrite(9,P);
     delay(50);
   } // put your main code here, to run repeatedly:
  analogWrite(9,0);
  delay(1000);
}