public MainWindowViewModel()
{
ConnectCommand = new DelegateCommand(conn);
RCommand = new DelegateCommand(() => SelectedDevice.TxUsb(Encoding.ASCII.GetBytes("r")));
GCommand = new DelegateCommand(() => SelectedDevice.TxQueue.Enqueue(Encoding.ASCII.GetBytes("g")));
YCommand = new DelegateCommand(() => SelectedDevice.TxQueue.Enqueue(Encoding.ASCII.GetBytes("y")));
}