               aux_off();
               radio_on=true;
             }
-            break;
-          case 3: break;
-          case 4: if (radio_freq<=1079) radio_freq++; break;
-          case 5: if (radio_on) radio_freq=Radio.seekUp(); break;
-          case 6: 
+            break;;
+          case 3: if (radio_freq<=1079) radio_freq++; break;
+          case 4: if (radio_on) radio_freq=Radio.seekUp(); break;
+          case 5: 
             radio_freq=radio_station[0]; 
             menue=2; 
             break;
-          case 7: write_station(0); break;
-          case 8: 
+          case 6: write_station(0); break;
+          case 7: 
             radio_freq=radio_station[1]; 
             menue=2;
             break;
-          case 9: write_station(1); break;
-          case 10: 
+          case 8: write_station(1); break;
+          case 9: 
             radio_freq=radio_station[2]; 
             menue=2; 
             break;
-          case 11: write_station(2); break;
+          case 10: write_station(2); break;
         }
         if (radio_on) save=true;
         break;
-      case 2:
-        if (menue<11) menue++;
-        if ((!radio_on) && (menue==3)) menue++;
-        break;
-      case 3:
-        if (menue>0) menue--;
-        if ((!radio_on) && (menue==3)) menue--;
-        break;
+      case 2: if (menue<10) menue++; break;
+      case 3: if (menue>0) menue--;  break;
     } 
   }
   if (save2)

  radio_station[station]=radio_freq; // Write station 1
  write_EEPROM(22+station*2,radio_station[station]%10);
  write_EEPROM(21+station*2,(radio_station[station]-(radio_station[station]%10))/10);
  lcd.setCursor(1,1);
  lcd.print(F("speichern...      "));
  Radio.newdelay(1000);
}


 * The main loop controls the timing events and gets interrupted by the read_button()-funtion.
 * Otherwise NOKO falls asleep with powerdown_delay() for 120ms. This saves a lot of power.
 * 
 * Flash-Usage: 27.266 (1.8.2 | AVR Core 1.6.18 | Linux x86_64, Windows 10 |Compiler options)
 * 
 * Optional:
 * Compiler Options:   -funsafe-math-optimizations -mcall-prologues -maccumulate-args
