【发布时间】：2016-12-18 12:43:54
【问题描述】：
我有一个项目需要通过串行端口与 Arduino 进行通信。我面临的问题是我无法连续打印从串行监视器接收到的数据在富文本框的多行上。当我按下“Reveice”按钮时，我只收到一个值，之后，再次按下“接收”按钮将覆盖该行。
我试图解决这个问题几天，但这是我第一次用 c# 编程，所以我请求你的帮助。
代码：
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 !";
}
}
}
}
}
最终应用的打印屏幕：http://i.imgur.com/5f8EOly.png
谢谢！
【问题讨论】：
标签： c# arduino serial-port