【发布时间】：2017-03-16 07:00:58
【问题描述】：
我想使用 C# IDE Visual Studio 将串行数据从 Arduino 发送到应用程序。我将以 9600 波特率发送 40 个字符。 C#中的Arduino之间的连接很好，问题是当我使用ReadLine命令将数据发送到C#时。我没有得到全部数据，而且总是有一些第一次数据丢失，例如，如果我在 C# 中发送 123456789，它读取的只是 456789 或 89 或 3456789。
#define TC1 A0
#define TC2 A1
#define TC3 A2
#define TC4 A3
#define TC5 A4
#define TC6 A5
#define TC7 A6
#define TC8 A7
//#define TC9 A8
//#define TC10 A9
float K1 = 1;
float K2 = 1;
float K3 = 1;
float K4 = 1;
float K5 = 1;
float K6 = 1;
float K7 = 1;
float K8 = 1;
float K9 = 1;
float K10 = 1;
int n = 10;
int temp[10];
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
}
void loop() {
// put your main code here, to run repeatedly:
int x = 100;
temp[0]=analogRead(TC1)*K1*x*5/1023;
temp[1]=analogRead(TC2)*K2*x*5/1023;
temp[2]=analogRead(TC3)*K3*x*5/1023;
temp[3]=analogRead(TC4)*K4*x*5/1023;
temp[4]=analogRead(TC5)*K5*x*5/1023;
temp[5]=analogRead(TC6)*K6*x*5/1023;
temp[6]=analogRead(TC7)*K7*x*5/1023;
temp[7]=analogRead(TC8)*K8*x*5/1023;
temp[8]=analogRead(TC8)/5*200*K9;
temp[9]=analogRead(TC8)/5*200*K10;
// temp[0] = 1101;
// temp[1] = 2327;
// temp[2] = 114;
// temp[3] = 6753;
// temp[4] = 50;
// temp[5] = 1;
// temp[6] = 24;
// temp[7] = 123;
// temp[8] = 1269;
// temp[9] = 3;
for (int i = 0; i <= n - 1; i++) {
char buff[] = {'0', '0', '0', '0'};
int length_temp = String(temp[i]).length();
for (int j = length_temp - 1; j >= 0; j--) {
buff[j] = String(temp[i])[length_temp - j - 1];
}
for (int j = 0; j <= 3; j++) {
Serial.write(buff[3 - j]);
}
}
Serial.write('\n');
}
这是我的 Arduino 代码，这里是我的整个 C# 代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.IO.Ports;
using System.Windows.Forms;
namespace Display_data
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void start_Click(object sender, EventArgs e)
{
}
private void stop_Click(object sender, EventArgs e)
{
//myport.Close();
//textbox.Text = "Koneksi diputus!";
}
private void makefile_Click(object sender, EventArgs e)
{
//String simpan = @"C:\"; //Alamat penyimpanan
//string nama_file = "Data.txt";
//System.IO.File.WriteAllText(simpan + nama_file, (ch1.Text+','+ ch2.Text + ',' + ch3.Text + ',' + ch4.Text + ',' + ch5.Text + ',' + ch6.Text + ',' + ch7.Text + ',' + ch8.Text + ',' + ch9.Text + ',' + ch10.Text ));
//MessageBox.Show("Data telah tersimpan di " + simpan + nama_file);
//string nama_gambar = "Data.png";
//this.grafik.SaveImage(simpan + nama_gambar, System.Windows.Forms.DataVisualization.Charting.ChartImageFormat.Png);
//MessageBox.Show("Gambar telah tersimpan di " + simpan + nama_gambar);
}
private void richTextBox1_TextChanged(object sender, EventArgs e)
{
}
private void Port_SelectedIndexChanged(object sender, EventArgs e)
{
}
private void connect_Click(object sender, EventArgs e)
{
myport = new SerialPort();
myport.BaudRate = 9600;
myport.PortName = Port.Text;
myport.DataReceived += receive;
try
{
myport.Open();
textbox.Text = "Connected";
}
catch (Exception)
{
textbox.Text = "Connection Failed!";
}
}
int j;
void receive(object sender, SerialDataReceivedEventArgs e)
{
string data = myport.ReadLine();
int CHa;
int CHb;
int CHc;
int CHd;
int CHe;
int CHf;
int CHg;
int CHh;
int CHi;
int CHj;
j++;
int delay = 500;
CHa = Int32.Parse(data.Substring(0, 4));
CHb = Int32.Parse(data.Substring(4, 4));
CHc = Int32.Parse(data.Substring(8, 4));
CHd = Int32.Parse(data.Substring(12, 4));
CHe = Int32.Parse(data.Substring(16, 4));
CHf = Int32.Parse(data.Substring(20, 4));
CHg = Int32.Parse(data.Substring(24, 4));
CHh = Int32.Parse(data.Substring(28, 4));
CHi = Int32.Parse(data.Substring(32, 4));
CHj = Int32.Parse(data.Substring(36, 4));
//ch1.Text = data.Substring(0, 4);
//ch2.Text = data.Substring(4, 4);
//ch3.Text = data.Substring(8, 4);
//ch4.Text = data.Substring(12, 4);
//ch5.Text = data.Substring(16, 4);
//ch6.Text = data.Substring(20, 4);
//ch7.Text = data.Substring(24, 4);
//ch8.Text = data.Substring(28, 4);
//ch9.Text = data.Substring(32, 4);
//ch10.Text = data.Substring(36, 4);
ch1.Text = CHa.ToString();
ch2.Text = CHb.ToString();
ch3.Text = CHc.ToString();
ch4.Text = CHd.ToString();
ch5.Text = CHe.ToString();
ch6.Text = CHf.ToString();
ch7.Text = CHg.ToString();
ch8.Text = CHh.ToString();
ch9.Text = CHi.ToString();
ch10.Text = CHj.ToString();
this.grafik.Series["Ch 1"].Points.AddXY(j * delay, CHa);
this.grafik.Series["Ch 2"].Points.AddXY(j * delay, CHb);
this.grafik.Series["Ch 3"].Points.AddXY(j * delay, CHc);
this.grafik.Series["Ch 4"].Points.AddXY(j * delay, CHd);
this.grafik.Series["Ch 5"].Points.AddXY(j * delay, CHe);
this.grafik.Series["Ch 6"].Points.AddXY(j * delay, CHf);
this.grafik.Series["Ch 7"].Points.AddXY(j * delay, CHg);
this.grafik.Series["Ch 8"].Points.AddXY(j * delay, CHh);
this.grafik.Series["Ch 9"].Points.AddXY(j * delay, CHi);
this.grafik.Series["Ch 10"].Points.AddXY(j * delay, CHj);
}
private void label1_Click(object sender, EventArgs e)
{
}
private void label11_Click(object sender, EventArgs e)
{
}
}
}
那么问题是什么？是否需要锁定开放端口命令？
【问题讨论】：
标签： c# arduino serial-port