const int ledpin=11;
 int val=255;  

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

void loop() {
  // put your main code here, to run repeatedly:   
for (val=0;val<=255;val++){
  analogWrite(ledpin,val);
  Serial.println(val);
  delay(10);
}

}