iOS Question iExternalAccessory ReadData

Sub objEA_ReadData3(DecReceived() As String)
  
    Dim strDec As String
    For a = 0 To DecReceived.Length-1
       strDec = DecReceived(a)
        LogColor("strDec=" & strDec,Colors.Blue)
    Next

End Sub

Sub objEA_onEAScan
    Log("[objEA_onEAScan]")
End Sub

-(void)EAScan {
  
  if(_DebugMode) NSLog(@"%s", __FUNCTION__);
  
  mgr = [EAAccessoryManager sharedAccessoryManager];
  
  NSOutputStream *os = session.outputStream;
  
  if(_DebugMode) NSLog(@"connectedAccessories:%lu",(unsigned long)[mgr.connectedAccessories count]);
  
  if ([mgr.connectedAccessories count])
  {
  
  if (os.hasSpaceAvailable)
  {
  if(_DebugMode) NSLog(@"hasSpaceAvailable");
  
  [B4IObjectWrapper raiseEventFromDifferentThread:self :@"_oneascan:" :@[@"Device are already connected"]];
  /*
  UIAlertView *alert = [[UIAlertView alloc]
  initWithTitle: @"Warning !!!"
  message: @"Device are already connected"
  delegate: nil
  cancelButtonTitle:@"OK"
  otherButtonTitles:nil]; [alert show];
  
  [alert show];*/
  }
  else
  {
  [B4IObjectWrapper raiseEventFromDifferentThread:self :@"_oneascan:" :@[@"OK"]];
  /*[self connectBT];*/
  
  
  }
  }
  else
  {
  if(_DebugMode) NSLog(@"showBluetoothAccessoryPickerWithNameFilter");
  [mgr showBluetoothAccessoryPickerWithNameFilter:nil completion:^(NSError *error){ NSLog(@"%@", [error localizedDescription]);}];
  }
  
}