issues with a prodject

Projects General Guidance
4

I am not sure what it is you're asking for. Are you wanting to know if the code does what it's supposed to or whether it is a valid programming flow? To test we would need a schematic.

You might want to simplify the code some as well but that's up to you.

void toggleSrsPrll(int modeSrs, int modePrll, int delayTime) {
   digitalWrite (srs, modeSrs);
   digitalWrite (prll, modePrll);
   delay(delayTime);
}

void loop() {
   btnst = digitalRead (btn);

   while (btn == HIGH) {        //while the button is pressed turun 
       digitalWrite (srs, LOW);   //the other circuits off
       digitalWrite (prll, LOW);
   }
   do {
       if (cnt >= 15)
         cnt = 0;
       else {
           if (cnt < 3) {
               Serial.println ("a");
               toggleSrsPrll(HIGH, LOW, bk);
               toggleSrsPrll(LOW, HIGH, bk);
               cnt++;
           }
           else if (cnt < 6) {
               Serial.println ("b");
               toggleSrsPrll(HIGH, LOW, bk / 2);
               toggleSrsPrll(LOW, HIGH, bk / 2);
               cnt++;
           }
           else if (cnt < 9) {
               Serial.println ("c");
               toggleSrsPrll(HIGH, LOW, bk / 4);
               toggleSrsPrll(LOW, HIGH, bk / 4);
               cnt++;
           }
           else if (cnt < 15) {
               Serial.println ("d");
               toggleSrsPrll(HIGH, LOW, bk / 8);
               toggleSrsPrll(LOW, HIGH, bk / 8);
               cnt++;
           }
       }
       Serial.println("e");
   } while (btn == LOW);         // while button is off
}