【机器视觉】C# 串口通讯

zhihuishuxia__

已于 2024-05-20 11:48:32 修改

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文章标签： c# 开发语言

于 2024-05-20 10:14:44 首次发布

本文链接：https://blog.youkuaiyun.com/zhihuishuxia__/article/details/138674943

版权

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;

namespace 串口通讯
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //运行组件
            serialPort1.Open();
        }
        //数据接收事件
        private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
            //获取字节大小
            int size = serialPort1.BytesToRead;
            byte[] data = new byte[size];
            serialPort1.Read(data, 0, size);
            string msg = Encoding.Default.GetString(data);
            textBox1.BeginInvoke(new Action<string>(str =>
            {
                textBox1.Text += str;
            }),msg);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //判断是否打开
            if (serialPort1.IsOpen)
            {
                //直接调用输出
                serialPort1.Write(textBox2.Text);
            }
        }
    }
}