COM端口无法打开Unity

Question

我正在使用arduino板将串行数据传送到Unity.我使用了电路板附带的读取模拟电压样本,并在调试日志中愉快地显示了输出.

但是,现在当我运行Unity时,我收到以下错误:

IOException:端口"COM11"不存在.

我已将我的COM端口更改为各种数字,但它们都返回相同的错误.

我的串口读取代码是这样的:

SerialPort stream = null;
string data = "Ready";


private float DataTimer = 2.0f;
private float TimeToCheckStream = 0.1f; // check data every second
public string COMPort = "";
public int baudRate = 9600;



void Awake ()
{       

    stream = new SerialPort(COMPort,baudRate); //originally 9600
    Debug.Log ("Initialized stream");

    LogWriter writer = LogWriter.Instance;
    writer.WriteToLog( COMPort);
}



void Start ()
{
//  LogWriter writer = LogWriter.Instance;
//  writer.WriteToLog("Testing test");

        if ( stream != null )
        {
            if ( stream.IsOpen ) // close if already open
            {
                stream.Close();
                Debug.Log ("Closed stream");
            }

            stream.Open();
            Debug.Log ("Opened stream");
        }

        else
        {
            Debug.Log ("ERROR: Uninitialized stream");
        }

}


void Update ()
{

    if(DataTimer < TimeToCheckStream) 
    {
        DataTimer += Time.deltaTime;
    } 
    else
    {
        DataTimer = 0.0f;

        if ( stream != null )
        {
            if ( stream.IsOpen )
            {
                // if stream is open do things in here
                stream.ReadLine();
                Debug.Log(stream.ReadLine().ToString());
            }
        }

        else
        {
            Debug.Log ("NULL stream");
        }
    }
}



void OnGUI ()
{
    GUI.Label ( new Rect(500,10,300,100), data );
}



void OnApplicationQuit ()
{       

    if ( stream != null )
    {
        stream.Close();
    }
}

有什么理由为什么我的COM端口突然决定关闭自己？

Answer 1

您可以使用COM11替换它来访问\\.\COM11 您必须写:

myPort= new SerialPort("\\\\.\\COM11",9600);

看看微软的网站