         switch (r) {
             case '?':
               printHelp();
+              break;
           
             case '1':
                 digitalWrite(X_ENABLE_PIN, LOW);

                digitalWrite(X_ENABLE_PIN, HIGH);
                digitalWrite(Y_ENABLE_PIN, HIGH);
                break;
    
            case 'u':
                Serial.print("U  ");
                Serial.println(stepsize);
                stepX(stepsize, 1);
                break;
            case 'n':
                Serial.print("N  ");
                Serial.println(stepsize);
                stepX(stepsize, 0);
                break;
            case 't':
                Serial.println("T  5000");
                stepX(5000, 0);
                break;
    
            case 'b':
                Serial.println("B -5000");
                stepX(5000, 1);
                break;
    
            case 'o':
                Serial.println("O 100 ");
                stepX(1000, 0);
                break;
    
            case 'l':
                Serial.println("L -100 ");
                stepX(1000, 1);
                break;
    
    
            case 'i':
              Serial.println("I 10 ");
              stepX(50, 0);
              break;
        
            case 'k':
              Serial.println("K -10 ");
              stepX(50, 1);
              break;

            case '2':
                Serial.println("delay = 20");
                varDelay = 20;
                break;
            case '3':
                Serial.println("delay = 30");
                varDelay = 30;
                break;
            case '4':
                Serial.println("delay = 40");
                varDelay = 40;
                break;
            case '5':
                Serial.println("delay  =  50");
                varDelay = 50;
                break;
            case '6':
                Serial.println("delay  =  60");
                varDelay = 60;
                break;
            case '7':
                Serial.println("delay  =  70");
                varDelay = 70;
                break;
            case '8':
                Serial.println("delay  =  80");
                varDelay = 80;
                break;
            case '9':
                Serial.println("delay  =  90");
                varDelay = 90;
                break;

            default:

      Serial.println("1 Enable Motors ");
      Serial.println("0 Disable Motors ");
      Serial.println("");
      Serial.println("2  - 9 stepsize from 1 to 1000");
      Serial.println("w up");
      Serial.println("s down");
      Serial.println("a left");
      Serial.println("d right");
}

void loop() {
