Copy the code below:

void setup() {
// put your setup code here, to run once:
pinMode(11, OUTPUT);
}

void loop() {
// put your main code here, to run repeatedly:
analogWrite(11, 255);
delay(1000);
analogWrite(11, 120);
delay(300);
analogWrite(11, 80);
delay(80);
analogWrite(11, 200);
delay(90);
analogWrite(11, 255);
delay(100);
analogWrite(11, 95);
delay(300);
analogWrite(11, 160);
delay(400);
analogWrite(11, 255);
delay(200);
analogWrite(11, 150);
delay(500);
analogWrite(11, 124);
delay(100);
analogWrite(11, 195);
delay(600);
analogWrite(11, 255);
delay(200);
analogWrite(11, 42);
delay(40);
analogWrite(11, 76);
delay(120);
}