               #ifdef LOG_SERIAL
                 Serial.println(inSerial);
               #endif
-              
+              LED_show_activity();
               inSerial[i]='\0'; MyFuncMouseMove(inSerial);i = 0;
             }     //MM:L,U,3,1,end (mouse movement)}
         }


String operating_system;

void setup()                                    // setup function is a part of every Arduino sketch, it gets called once at the begining
{
  App.begin(MODULE_BAUDRATE);                  // begin communication with the bluetooth module
  //Keyboard.begin();                           // begin emulating keyboard
  Keyboard.begin();

  */

  Alt_Tab_Release_Routine();
}

void LED_control(){
  if(digitalRead(LED_BUILTIN)){
    if(last_led_activity - millis() > LED_SHOW_ACTIVITY_TIME){
      digitalWrite(LED_BUILTIN, LOW);
    } 
  }
}

void LED_show_activity(){
  digitalWrite(LED_BUILTIN, HIGH);
  last_led_activity = millis();
}

void Alt_Tab_Release_Routine(){
  if(last_alt_tab_time > 0){
