void setup() {
pinMode(9, OUTPUT);
}

void loop() {
analogWrite(9, 255);
delay(500);
analogWrite(9, 200);
delay(500);
analogWrite(9, 150);
delay(500);
analogWrite(9, 100);
delay(500);
analogWrite(9, 50);
delay(500);
analogWrite(9, 0);
delay(500);




}