LED "pulse" instead of "blink"

Projects Programming
24

Me more happy, 'cause "tick" and "tock" outs works now properly :

const int tick = 2;
const int tock = 3;
const int trigger_length = 7;
byte tickState = LOW;
byte tockState = LOW;
unsigned long currentMillis = 0;
unsigned long previousMillis = 0;

void setup() {
  Serial.begin(9600);
  pinMode(tick, OUTPUT);
  pinMode(tock, OUTPUT);
}

void loop() {
  currentMillis = millis(); 
  update_tick();
}

void update_tick() {
  if (tickState == LOW) {
    int clockspeed = map(analogRead(0), 0, 1024, 1000, 7); 
    if ((unsigned long) currentMillis - previousMillis >= clockspeed) { 
      tickState = HIGH;
      digitalWrite(tick, tickState);
      previousMillis += clockspeed;
      int comparator = random (0,100);
      int density = map(analogRead(1), 0, 1024, 10, 101);
      if (comparator <= density) {
        tockState = HIGH;
        digitalWrite(tock, tockState);
      } else {
        tockState = LOW;
        digitalWrite(tock, tockState);
      }
    }
  }
  else {
    if ((unsigned long) currentMillis - previousMillis >= trigger_length) {
      tickState = LOW;
      tockState = LOW;
      digitalWrite(tick, tickState);
      digitalWrite(tock, tockState);
      previousMillis += trigger_length;
    }
  }
}