Question

我在这里有一个小问题。我正在制作一个小型气象站，我试图在visual studio中读取数据。

在arduino中它看起来像这样

http://oi59.tinypic.com/2uzbknm.jpg

但是当我尝试在Visual Studio中阅读时，我得到了这个

http://i59.tinypic.com/2rykccn.jpg

这是我的代码，我已经考虑过问题所在，但我不知道如何解决它..

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO.Ports;

namespace WeatherStation
{
public partial class Form1 : Form
{
    public delegate void PrintString(String data);
    public PrintString printDelegate;
    private SerialPort port;
    private char[] data;
    private int index;
    public Form1()
    {
        InitializeComponent();
        data = new char[128];
        index = 0;
        printDelegate = new PrintString(PrintData);

    }

    private void btnStart_Click(object sender, EventArgs e)
    {
        try
        {
            port = new SerialPort("COM3", 9600, Parity.None, 8);
            port.DataReceived += DataReceivedHandler;
            port.Open();

        }

        catch (Exception exc)
        {
            MessageBox.Show(exc.Message);
        }

    }
    private void PrintData(String data)
    {
        txtBoxData.AppendText(" " + data + Environment.NewLine);
    }
    private void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)
    {
        try
        {
            data[index] = (char)port.ReadByte();
            if (data[index] == '\n' )
            {
                if (this.InvokeRequired)
                {
                    this.Invoke(printDelegate, new object[] { new String(data) });
                }

                index = 0;
            }

            else
            {
                index++;
            }
        }

        catch (Exception exc) //!!
        {
            MessageBox.Show(exc.Message);
        }
    }

    private void btnStop_Click(object sender, EventArgs e)
    {
        port.Close();
    }
  }
}

我认为这个问题出现在＆＃39; \ n＆＃39;但正如我之前所说，我不知道如何解决它。

            data[index] = (char)port.ReadByte();
            if (data[index] == '\n' )

提前感谢您的帮助。

串行COM端口输出

0 个答案: