void setup() {
 pinMode(9, OUTPUT); // put your setup code here, to run once:

}

void loop() hendrekEEnKjekkeKar() {
    int blinks = 10;
    int numberOfWrites = 255 / 8;
    int delayMs = 50;

    int i;
    int j;

    for (i = 0; i < blinks; i++) {
        for (j = 0; j < numberOfWrites; j++) {
            analogWrite(9, j);
            delay(delayMs);
        }

        for (j = numberOfWrites - 1; j >= 0; j--) {
            analogWrite(9, j);
            delay(delayMs);
        }
    }
}

}