arduino写作和阅读

作者: 無口君
发布时间: 2025-02-04 08:12:13 (3天前)
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一生流水 | 2019-08-31 10-32

<div class =“post-text”itemprop =“text”> <P> 您应该将侦听器附加到端口，如下所示： <BR/> <code> SerialPort port = new SerialPort("COM4", 9600); port.DataReceived += new SerialDataReceivedEventHandler(dataReceivedHandler); port.open(); </code> </p> <P> 然后编写你的处理程序，如： </p> <pre> <code> private void dataReceivedHandler(object sender, SerialDataReceivedEventArgs e) { SerialPort sp = (SerialPort)sender; string indata = sp.ReadExisting(); Dispatcher.Invoke( delegate { textbox1.Text = indata; }); } </code> </pre> <P> 您的按钮单击也可以是这样的： </p> <pre> <code> private void button1_click(object sender, RoutedEventArgs e) { try { port.Write("A"); } catch (Exception ex) { textbox.Text = " Send Failed !"; } } </code> </pre> </DIV>

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苞米地里的蒙面妖 | 2019-08-31 10-32

<div class =“post-text”itemprop =“text”> <P> 试试这个： </p> <P> 功能： </p> <UL> <LI> 计算机：单击开/关按钮 </LI> <LI> Arduino：打开/关闭LED </LI> </UL> <P> Arduino代码： </p> <pre> <code> const int LedPin = 13; int ledState = 0; void setup() { pinMode(LedPin, OUTPUT); Serial.begin(9600); } void loop() { char receiveVal; if(Serial.available() > 0) { receiveVal = Serial.read(); if(receiveVal == '1') ledState = 1; else ledState = 0; } digitalWrite(LedPin, ledState); delay(50); } </code> </pre> <P> C＃代码： </p> <pre> <code> using System; using System.Windows.Forms; using System.IO.Ports; namespace ledcontrol { public partial class Form1 : Form { SerialPort port; public Form1() { InitializeComponent(); this.FormClosed += new FormClosedEventHandler(Form1_FormClosed); if (port==null) { port = new SerialPort("COM7", 9600);//Set your board COM port.Open(); } } void Form1_FormClosed(object sender,FormClosedEventArgs e) { if(port !=null &&port.IsOpen) { port.Close(); } } private void button1_Click(object sender, EventArgs e) { PortWrite("1"); } private void button2_Click(object sender, EventArgs e) { PortWrite("0"); } private void PortWrite(string message) { port.Write(message); } } } </code> </pre> <P> 你可以在这里看到教程： <a href="http://www.lattepanda.com/topic-f6t1534.html?sid=0aac1b4a519c7a2d970b81059e6e581f" rel="nofollow noreferrer"> http://www.lattepanda.com/topic-f6t1534.html?sid=0aac1b4a519c7a2d970b81059e6e581f </A> </p> </DIV>

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