使用 C# 來操作 Arduino

C# 與 Arduino 相互溝通

上半部是 C# 程式，下半部 Arduino 程式

整個概念就是依靠 Serial Port 來溝通，讓電腦端可以控制 Arduino 的 LED 燈

	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;
	using System.IO.Ports;
	namespace App1
	{
	public partial class Form1 : Form
	{
	private SerialPort serialPort1 = new SerialPort();
	public Form1()
	{
	InitializeComponent();
	}
	private void Form1_Load(object sender, EventArgs e)
	{
	serialPort1.BaudRate = 9600;
	serialPort1.Parity = Parity.None;
	serialPort1.DataBits = 8;
	serialPort1.StopBits = StopBits.One;
	btnDisconnect.Enabled = false;
	btnLedOpen.Enabled = false;
	btnLedClose.Enabled = false;
	cbPortNumber.Items.AddRange(SerialPort.GetPortNames());
	label1.Text = "PC狀態：尚未連線";
	}
	private void cbPortNumber_SelectedIndexChanged(object sender, EventArgs e)
	{
	serialPort1.PortName = cbPortNumber.Text;
	}
	private void btnConnect_Click(object sender, EventArgs e)
	{
	serialPort1.Open();
	btnConnect.Enabled = false;
	btnDisconnect.Enabled = true;
	btnLedOpen.Enabled = true;
	btnLedClose.Enabled = true;
	label1.Text = "PC狀態：連線中";
	}
	private void btnDisconnect_Click(object sender, EventArgs e)
	{
	serialPort1.Write("0");
	serialPort1.Close();
	btnConnect.Enabled = true;
	btnDisconnect.Enabled = false;
	btnLedOpen.Enabled = false;
	btnLedClose.Enabled = false;
	label1.Text = "PC狀態：斷線中";
	label2.Text = "Arduino回傳：";
	}
	private void btnLedOpen_Click(object sender, EventArgs e)
	{
	serialPort1.Write("1");
	btnLedClose.Enabled = true;
	btnLedOpen.Enabled = false;
	label1.Text = "送出指令：LED ON";
	label2.Text = "Arduino回傳：" + serialPort1.ReadLine();
	}
	private void btnLedClose_Click(object sender, EventArgs e)
	{
	serialPort1.Write("0");
	btnLedOpen.Enabled = true;
	btnLedClose.Enabled = false;
	label1.Text = "送出指令：LED OFF";
	label2.Text = "Arduino回傳：" + serialPort1.ReadLine();
	}
	}
	}

view raw pc.cs hosted with ❤ by GitHub

	void setup() {
	Serial.begin(9600); // 開啟 Serial port, 通訊速率為 9600 bps
	// 初始化 LED 接腳
	pinMode(13, OUTPUT);
	}
	void loop() {
	// 檢查是否有資料可供讀取
	if (Serial.available() > 0) {
	// 讀取進來的 byte
	char inByte = Serial.read();
	// 根據收到的字元決定要打開或關掉 LED
	switch (inByte) {
	case '0':
	digitalWrite(13, LOW);
	delay(1);
	Serial.println("LED OFF");
	break;
	case '1':
	digitalWrite(13, HIGH);
	delay(1);
	Serial.println("LED ON");
	break;
	default:
	// 關掉所有的 LED
	digitalWrite(13, LOW);
	}
	}
	}

view raw uno.ino hosted with ❤ by GitHub