[英]Automatically adjust COM serial port in C#
我已經用Arduino Nano控制連接到PC並通過C#控制的直流電動機。 唯一的問題是,此刻它現在可以在我的計算機上運行,如果我將其連接到另一台PC,除非它使用相同的串行端口,否則它將無法工作。 這就是為什么我要COM端口“自行設置”。 有可能嗎? 如果沒有,我想制作另一個表格只是為了輸入COM端口號,但是如果可能的話,我想避免這種情況。 先感謝您。 這是我的代碼:
public partial class Form1 : Form
{
String s = "0";
string brojPorta = "COM5";
int vrijednost = 0;
System.IO.Ports.SerialPort serialPort1;
public Form1()
{
InitializeComponent();
System.ComponentModel.IContainer components =
new System.ComponentModel.Container();
serialPort1 = new System.IO.Ports.SerialPort(components);
serialPort1.PortName = brojPorta;
serialPort1.BaudRate = 9600;
serialPort1.Open();
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (serialPort1.IsOpen) serialPort1.Close();
}
private void Klizac1_Scroll(object sender, ScrollEventArgs e)
{
vrijednost = Klizac1.Value;
s = (vrijednost * 10.24).ToString();
serialPort1.Write(s + '\n');
label1.Text = ((vrijednost-50)*2).ToString()+"%";
}
private void btn_Zaustavi_Click(object sender, EventArgs e)
{
Klizac1.Value = 50;
label1.Text = "0";
s = (Klizac1.Value * 10.24).ToString();
serialPort1.Write(s + '\n');
}
}
這里可能會有一些陷阱,但是此示例似乎有效:
/*Use the WMI to search for the Arduino device on a serial port driver
and assign the serial port to the device*/
ManagementObjectSearcher SerialPortSearcher =
new ManagementObjectSearcher(
"root\\CIMV2",
"SELECT * FROM Win32_SerialPort");
foreach (ManagementObject SerialPortObject in SerialPortSearcher.Get())
{
if (SerialPortObject["Description"].ToString() == "Arduino Mega 2560")
{
SerialPort _serialPort =
new SerialPort(SerialPortObject["DeviceID"].ToString());
break;
}
}
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