C＃串口通信Arduino

Question

我有一个项目，我需要通过串口与Arduino进行通信。我面对的问题是，我无法连续打印从RichTextBox上的多行上的串行监视器接收到的数据。当我按下“Reveice”按钮时，我只收到一个值，然后再次按下接收按钮将覆盖此线。

我正在努力解决这个问题，但这是我第一次使用C＃编程，所以我在寻求你的帮助。

代码：最终应用的

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 aplicatie_comanda_v1 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
      getAvilablePorts(); 


     } 

     private void textBox1_TextChanged(object sender, EventArgs e) 
     { 

     } 

     private void Form1_Load(object sender, EventArgs e) 
     { 

     } 

     private void button2_Click(object sender, EventArgs e) 
     { 

      serialPort1.Close(); 
      progressBar1.Value = 0; 
      button3.Enabled = true; 
      button1.Enabled = false; 
      receive.Enabled = false; 
      richTextBox1.Clear(); 

     } 

     private void label1_Click(object sender, EventArgs e) 
     { 

     } 
     void getAvilablePorts() 
     { 
      string[] ports = SerialPort.GetPortNames(); 
      comboBox1.Items.AddRange(ports); 
     } 

     private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) 
     { 


     } 

     private void button3_Click(object sender, EventArgs e) 
     { 
      try 
      { 
       if (comboBox1.Text == "" || comboBox2.Text == "" && serialPort1 != null && serialPort1.IsOpen) 
       { 
        richTextBox1.Text = "Select COM port and BAUD rate !"; 
        serialPort1.Close(); 
       } 
       else 
       { 
        string cmd = Convert.ToString(comboBox1.Text); 
        int baud = Convert.ToInt32(comboBox2.Text); 
        serialPort1.PortName = cmd; 
        serialPort1.BaudRate = baud; 
        serialPort1.DtrEnable = true; 
        serialPort1.RtsEnable = true; 
        serialPort1.Open(); 
        progressBar1.Value = 100; 
        button1.Enabled = true; 
        button2.Enabled = true; 
        textBox1.Enabled = true; 
        button3.Enabled = false; 

       } 
      } 
      catch (UnauthorizedAccessException) 
      { 
       richTextBox1.Text = "Unauthorized !"; 
      } 
     } 

     private void textBox2_TextChanged(object sender, EventArgs e) 
     { 

     } 

     private void button1_Click(object sender, EventArgs e) 
     { 

      string text = textBox1.Text; 
      serialPort1.Write(text); 

     } 

     private void receive_Click(object sender, EventArgs e) 
     { 
      try 
      { 
       richTextBox1.Text = serialPort1.ReadLine() + "\n"; 

      } 
      catch (TimeoutException) 
      { 
       richTextBox1.Text = "Timeout !"; 
      } 
     } 

     private void button4_Click(object sender, EventArgs e) 
     { 

      serialPort1.Write("w"); 
     } 

     private void button5_Click(object sender, EventArgs e) 
     { 
      serialPort1.Write("s"); 
     } 

     private void trackBar1_Scroll(object sender, EventArgs e) 
     { 

     } 

     private void button6_Click(object sender, EventArgs e) 
     { 
      serialPort1.Write("a"); 
     } 

     private void button7_Click(object sender, EventArgs e) 
     { 
      serialPort1.Write("d"); 
     } 

     private void button12_Click(object sender, EventArgs e) 
     { 
      serialPort1.Write("b"); 
     } 

     private void button13_Click(object sender, EventArgs e) 
     { 
      string cmd = Convert.ToString(trackBar1.Value); 
      serialPort1.Write(cmd); 
     } 

     private void button8_Click(object sender, EventArgs e) 
     { 
      serialPort1.Write("q"); 
     } 

     private void button11_Click(object sender, EventArgs e) 
     { 
      serialPort1.Write("e"); 
     } 

     private void button9_Click(object sender, EventArgs e) 
     { 
      serialPort1.Write("z"); 
     } 

     private void button10_Click(object sender, EventArgs e) 
     { 
      serialPort1.Write("c"); 
     } 

     private void richTextBox1_TextChanged(object sender, EventArgs e) 
     { 


     } 

     private void checkBox1_CheckedChanged(object sender, EventArgs e) 
     { 
      while (serialPort1.IsOpen) 
      { 
       try 
       { 
        string date = serialPort1.ReadLine(); 
        richTextBox1.Text = date + "\n"; 

       } 
       catch (TimeoutException) 
       { 
        richTextBox1.Text = "Timeout !"; 
       } 
      } 
     } 
    } 
} 

打印屏幕：http://i.imgur.com/5f8EOly.png

谢谢！

Answer 1

我还没有在C＃中编写任何串行应用程序，但已经做了一些涉及Java < - > Arduino通信的项目。 我的第一个猜测是你用接收的行覆盖现有的行。

richTextBox1.Text = serialPort1.ReadLine() + "\n"; 

，而不是你会想：

richTextBox1.Text += serialPort1.ReadLine() + "\n"; 

你也应该看看这篇文章在MSDN上： https://msdn.microsoft.com/en-us/library/system.io.ports.serialport.datareceived(v=vs.110).aspx

这说明了如何使用活动从连续接收文本Arduino的。