实例介绍
【实例截图】
【核心代码】
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.IO.Ports; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO; namespace SerialCommunication { public partial class frmMain : Form { public string gb; public frmMain() { InitializeComponent(); System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false;//关闭跨线程检测 } private void frmMain_Load(object sender, EventArgs e) { this.cmbSerials.Items.AddRange(SerialPort.GetPortNames()); this.cmbSerials.SelectedIndex = this.cmbSerials.Items.Count - 1;//Arduino一般在最后一个串口 this.baud.SelectedIndex = 9; this.btnStartRead.Enabled = true; this.btnStopRead.Enabled = false; this.btnDataReader.Enabled = this.btnDataClean.Enabled = this.BntDrawLine.Enabled = false; serialPort.DataReceived = new System.IO.Ports.SerialDataReceivedEventHandler(Port_DataReceived);//串口接收触发 } private void Port_DataReceived(object sender, SerialDataReceivedEventArgs e) {//串口接收代码 int bufferlen = serialPort.BytesToRead; byte[] bytes = new byte[bufferlen]; serialPort.Read(bytes, 0, bufferlen); gb = System.Text.Encoding.Default.GetString(bytes); //gb = serialPort.ReadLine(); txtInfo.AppendText(gb); while (this.btnDataClean.Enabled == false) { this.AutoDrawLine(); break; } } //------------------------------------------------ private void btnStartRead_Click(object sender, EventArgs e) {//打开串口 // this.InitialSerialPort(); try { serialPort.PortName = this.cmbSerials.SelectedItem.ToString(); serialPort.BaudRate = Convert.ToInt32(this.baud.SelectedItem); serialPort.Open(); this.btnStartRead.Enabled = false; this.btnStopRead.Enabled = true; this.btnDataReader.Enabled = true; } catch (Exception ex) { MessageBox.Show("初始化串口发生错误:" ex.Message, "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information); } } private void btnStopRead_Click(object sender, EventArgs e) {//关闭串口 this.DisposeSerialPort(); this.btnStopRead.Enabled = false; this.btnDataReader.Enabled = this.btnDataClean.Enabled = false; this.btnStartRead.Enabled = true; } private void btnReader_Click(object sender, EventArgs e) {//读取模式 this.btnDataReader.Enabled = this.BntDrawLine.Enabled = this.btnDataClean.Enabled = true; serialPort.WriteLine("R"); } private void btnDataClean_Click(object sender, EventArgs e) {//删除数据文件 this.btnDataReader.Enabled = true; this.btnDataClean.Enabled = true; serialPort.WriteLine("D"); } private void btnCleanTextBox_Click(object sender, EventArgs e) {//清空文本区 this.txtInfo.Text = ""; } private void frmMain_FormClosing(object sender, FormClosingEventArgs e) { this.DisposeSerialPort(); } private void DisposeSerialPort() { if (serialPort != null) { try { if (serialPort.IsOpen) { serialPort.Close(); } serialPort.Dispose(); } catch (Exception ex) { MessageBox.Show("关闭串口发生错误:" ex.Message, "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information); } } } private void AutoDrawLine() {//绘制曲线 string data = gb; data = data.Replace("\r\n", ","); string[] XYZ = data.Split(','); int time = Convert.ToInt32(XYZ[0]); int dataX = Convert.ToInt32(XYZ[1]); int dataY = Convert.ToInt32(XYZ[2]); this.chartXY.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line; this.chartXY.Series[0].Points.AddXY(dataX, time); this.chartXY.Series[1].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line; this.chartXY.Series[1].Points.AddXY(dataY, time); this.chartX.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line; this.chartX.Series[0].Points.AddXY(dataX, time); this.chartY.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line; this.chartY.Series[0].Points.AddXY(dataY, time); } private void DrawLine() {//绘制曲线 string data = this.txtInfo.Text; data = data.Replace("\r\n", ","); string[] XYZ = data.Split(','); int L = XYZ.Length - 1; int k = L / 3; for (int i = 0; i < k; i ) { try { int time = Convert.ToInt32(XYZ[i * 3]); int dataX = Convert.ToInt32(XYZ[i * 3 1]); int dataY = Convert.ToInt32(XYZ[i * 3 2]); this.chartXY.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line; this.chartXY.Series[0].Points.AddXY(dataX, time); this.chartXY.Series[1].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line; this.chartXY.Series[1].Points.AddXY(dataY, time); this.chartX.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line; this.chartX.Series[0].Points.AddXY(dataX, time); this.chartY.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line; this.chartY.Series[0].Points.AddXY(dataY, time); } catch { MessageBox.Show("数据异常,请修正后重绘!"); } } } private void BntDrawLine_Click(object sender, EventArgs e) {//绘图按钮 this.chartX.Series[0].Points.Clear(); this.chartY.Series[0].Points.Clear(); this.chartXY.Series[0].Points.Clear(); this.chartXY.Series[1].Points.Clear(); this.DrawLine(); } private void reloadSP_Click(object sender, EventArgs e) { this.cmbSerials.Items.Clear(); this.cmbSerials.Items.AddRange(SerialPort.GetPortNames()); this.cmbSerials.SelectedIndex = this.cmbSerials.Items.Count - 1;//Arduino一般在最后一个串口 } private void BtnSaveText_Click(object sender, EventArgs e) { string oriStr = this.txtInfo.Text; SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Filter = "文本文件(*.txt)|*.txt"; if (saveFileDialog.ShowDialog() == DialogResult.OK) { //使用“另存为”对话框中输入的文件名实例化StreamWriter对象 StreamWriter sw = new StreamWriter(saveFileDialog.FileName, true); //向创建的文件中写入内容 sw.Write(oriStr); //关闭当前文件写入流 sw.Close(); } } private void BtnSaveLine_Click(object sender, EventArgs e) { this.chart1.Series[0].Points.Clear(); this.chart1.Series[1].Points.Clear(); ChartToImage(); SaveFileDialog sfd = new SaveFileDialog(); sfd.Filter = "JPEG文件|*.jpg"; if (sfd.ShowDialog() == DialogResult.OK) { chart1.SaveImage(sfd.FileName, System.Drawing.Imaging.ImageFormat.Jpeg); } } private void ChartToImage() {//绘制曲线 string data = this.txtInfo.Text; data = data.Replace("\r\n", ","); string[] XYZ = data.Split(','); int L = XYZ.Length - 1; int k = L / 3; chart1.Width = 600; chart1.Height = k*2; for (int i = 0; i < k; i ) { try { int time = Convert.ToInt32(XYZ[i * 3]); int dataX = Convert.ToInt32(XYZ[i * 3 1]); int dataY = Convert.ToInt32(XYZ[i * 3 2]); this.chart1.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line; this.chart1.Series[0].Points.AddXY(dataX, time); this.chart1.Series[1].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line; this.chart1.Series[1].Points.AddXY(dataY, time); } catch { MessageBox.Show("数据异常,请修正后重绘!"); } } } } }
标签: C# 串口 SerialCommunication 工具
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