LED "pulse" instead of "blink"

Ok, found an example, where the blink time and the interval are separated :

const int tick = 2;
const int trigger_length = 7;
byte tickState = LOW;
unsigned long currentMillis = 0;
unsigned long previousMillis = 0;

void setup() {
  Serial.begin(9600);
  pinMode(tick, OUTPUT);
}
void loop() {
  currentMillis = millis(); 
  update_tick();
}
void update_tick() {
  if (tickState == LOW) {
    Serial.println("LOW");
    int clockspeed = map(analogRead(0), 0, 1024, 1000, 7); 
    if ((unsigned long) currentMillis - previousMillis >= clockspeed) { 
      tickState = HIGH;
      digitalWrite(tick, tickState);
      previousMillis += clockspeed;
    }
  }
  else {
    Serial.println("HIGH");
    if ((unsigned long) currentMillis - previousMillis >= trigger_length) {
      tickState = LOW;
      digitalWrite(tick, tickState);
      previousMillis += trigger_length;
    }
  }
}

Me happy :D:D:D