Using 'blink method' and 'blink without delay method' to make tones.

Projects General Guidance
4

AWOL:

void withoutDelay(int interval){ 

unsigned long currentMillis = millis();
  if(currentMillis - previousMillis > (interval / 2)) {
    previousMillis = millis();
    if(pinState == LOW) pinState = HIGH;
    else pinState = LOW;
    digitalWrite(outPin, pinState);
  }

}



And now?

Still the same..