C# SerialPort.Open() COM蓝牙串口阻塞问题
这种问题一般是蓝牙串口的问题,即使设置了SerialPort.TimeOut也是没有用的,需要验证串口名称,跳过该串口SerialPort.Open()步骤
这种有问题的蓝牙串口设备名称中会带有BTHENUM
那么我们就要取到串口名称,C#提供的SerialPort类只能取到串口编号,所以我们需要借助WMI取串口名称
private bool IsBTHENUM(string comName)
{
string query = $"SELECT * FROM Win32_PnPEntity WHERE Caption LIKE '%({comName})%'";
ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
ManagementObjectCollection devices = searcher.Get();
bool result = false;
foreach (ManagementObject device in devices)
{
string deviceID = device["DeviceID"] as string;
if (deviceID.Contains("BTHENUM"))
{
result = true;
break;
}
}
return result;
}