boolean StartButtonPressed(){
    if (digitalRead(START_BTN) != HIGH || buttonsBlock){
        startButtonState = 0;
        return false;
    }

    if (millis() - previousMillis > 50){
        previousMillis = millis();
        startButtonState++;
    }

    if(startButtonState >=3){
        return true;
    }

    return false;
}