c#程序控制和arduino遥控小车

本文关键字：小车 arduino 程序控制 | 更新日期: 2023-09-27 18:15:38

所以我做了一个c#程序来控制我的RC汽车通过串行端口，当我按下按钮，使汽车向前移动，它继续前进，当我按下按钮。简而言之，我想用方向键控制按钮，当我按下键时，它应该向前走，当我放开它时，它应该停止。提前感谢你的帮助。你可能会觉得我是个新手。

程序图片:https://i.stack.imgur.com/yV8wa.jpg 

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

namespace CSharpEasySerial
{
    public partial class frmSerial : Form
    {
    public static System.IO.Ports.SerialPort serialPort1;
    private delegate void LineReceivedEvent(string line);
    public frmSerial()
    {
        InitializeComponent();
    }
    private void btnConnect_Click(object sender, EventArgs e)
    {
        try
        {
            System.ComponentModel.IContainer components = new System.ComponentModel.Container();
            serialPort1 = new System.IO.Ports.SerialPort(components); // Creating the new object.
            serialPort1.PortName = "COM" + numCom.Value.ToString(); // Setting what port number.
            serialPort1.BaudRate = 9600; // Setting baudrate.
            serialPort1.DtrEnable = true; // Enable the Data Terminal Ready 
            serialPort1.Open(); // Open the port for use.
            btnConnect.Text = "Connected.";
            btnConnect.Enabled = false;
            numCom.Enabled = false;
            serialPort1.Write(new byte[] { 0x08 }, 0, 1);
        }
        catch
        {
            MessageBox.Show("Not Found. Try Again","Error");
        }
    }
    private void btnSend_Click(object sender, EventArgs e)
    {
        // Sends the text as a byte.
        serialPort1.Write(new byte[] { Convert.ToByte(txtDatasend.Text) }, 0, 1);
    }
    private void button1_Click(object sender, EventArgs e)
    {
        serialPort1.Write(new byte[] { 0x00 }, 0, 1);
        serialPort1.Write(new byte[] { 0x02 }, 0, 1);
    }

c#程序控制和arduino遥控小车

您需要一个"Button_Unclick"事件来将停止命令发送到串行端口。

你没有说你的表单技术是什么…然而，在WPF中，这可能采取…
private void button1_OnMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
     // whatever command it is to stop... your the expert here...
     serialPort1.Write(new byte[] { 0x08 }, 0, 1);
}

Update:所以对于键，这里是你需要在你的表单…是winforms吗?WPF吗?这是我测试它的winforms应用程序(因为这是我现在打开的):)

public Form1()
{
    InitializeComponent();
    this.KeyPreview = true;
    this.KeyDown += form_KeyDown;
    this.KeyUp += form_KeyUp;
}
private void form_KeyUp(object sender, KeyEventArgs e)
{
    Console.WriteLine(@"KeyUp:"+ e.KeyValue);
    // user released the key so send whatever you need to stop...
}
private void form_KeyDown(object sender, KeyEventArgs e)
{
    Console.WriteLine(@"KeyDown:"+ e.KeyValue);
    // user pressed the key so send whatever you need to make it go..
}

更新2:这里是WPF的方法/设置

在你的window.xaml…

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525"
        KeyDown="MainWindow_OnKeyDown"
        KeyUp="MainWindow_OnKeyUp"
        >

在你的例子中…

private void MainWindow_OnKeyDown(object sender, KeyEventArgs e)
{
}
private void MainWindow_OnKeyUp(object sender, KeyEventArgs e)
{
}

更新2:下面是检查键值的switch语句。

private void form_KeyDown(object sender, KeyEventArgs e)
{
    switch (e.KeyCode)
    {
        case Keys.Up:
            // do your up arrow thing here...
            break;
        case Keys.Down:
            if (e.Control)
            {
                // get fancy if the control key + down arrow is pressed 
                // at the same time
            }
            else
            {
                // do the normal down arrow stuff
            }
            break;
    }
}
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