如何在 Powershell 中通过 USB 端口列出 COM？

Question

我在互联网上找到了这个命令：

PS C:\> Get-CimInstance Win32_SerialPort | Select Name, Description, DeviceID

Name                                               Description                                 DeviceID
----                                               -----------                                 --------
Standard Serial over Bluetooth link (COM4)         Standard Serial over Bluetooth link         COM4
Standard Serial over Bluetooth link (COM5)         Standard Serial over Bluetooth link         COM5
Intel(R) Active Management Technology - SOL (COM3) Intel(R) Active Management Technology - SOL COM3


PS C:\>

但它没有向我显示任何 USB COM 端口。

Answer 1

您可以在 PowerShell 中列出串行端口，如下所示：

[System.IO.Ports.SerialPort]::GetPortNames()

您也可以以类似的方式与他们互动。下面从端口读取一行，例如：

function Read-SerialPort {
    param(
        [Parameter(Mandatory=$true)]
        [string]$PortName,
        [int]$BaudRate = 9600,
        [System.IO.Ports.Parity]$Parity = [System.IO.Ports.Parity]::None,
        [int]$DataBits = 8,
        [System.IO.Ports.StopBits]$StopBits = [System.IO.Ports.StopBits]::One
    )

    try {
        $port = [System.IO.Ports.SerialPort]::new($PortName, $BaudRate, $Parity, $DataBits, $StopBits)
        $port.Open()
        $data = $port.ReadLine()
        return $data
    }
    catch {
        Write-Error "Error reading from port: $_"
    }
    finally {
        if ($port -and $port.IsOpen) {
            $port.Close()
            $port.Dispose()
        }
    }
}

Read-SerialPort -PortName COM5