查找 Arduino 连接的端口 [英] Find which port Arduino is connected

问题描述

我知道如何列出可用的串行端口，但是每次连接我的 Arduino 时，我如何才能找到正确的 COM 端口?COM 端口应该像 MessageBox.Show(COMport);

I know how to list the available Serial Ports but whow can I find the right COM port everytime I connect my Arduino? COM Port should be printed like MessageBox.Show(COMport);

我想在 Visual C# 应用程序中读/写 Arduino 数据.

I want to read/write Arduino data in a Visual C# application.

[这个对我不起作用]

推荐答案

打开设备管理器，展开端口(COM & LPT)".插入 Arduino USB 连接，一个新的 COM 端口出现，名称为 Arduino UNO (COMxx).这是在我的机器上，因为我有一个 Arduino UNO.

Open Device manager, expand "Ports (COM & LPT)". Plug in the Arduino USB connection, a new COM port shows up with name Arduino UNO (COMxx). This is on my machine as I have an Arduino UNO.

您可以使用 WMI(Windows 管理规范)找到此字符串.我在一个类中使用下面的方法，并将 COMports 作为公共列表

You can find this string using WMI (Windows Management Instrumentation). I am using the method below in a class, and has COMports as a public List

using System;
using System.Collections.Generic;
using System.Linq;
using System.Management;
using System.Text;
using System.Windows;

 public void getCOMportsValues()
    {
        try
        {
            if (COMports.Count > 0) COMports.Clear(); // COMports is a List<string>

            ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_PnPEntity");

            foreach (ManagementObject queryObj in searcher.Get())
            {
                string s = queryObj["Name"] as string;
                if (s.Contains("(COM"))
                    COMports.Add(s);
            }
        }
        catch (ManagementException e)
        {
            MessageBox.Show("An error occurred while querying WMI data: " + e.Message);
        }
    }

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