Unity串口通信 16进制 SerialPorts 设置COM口

最新推荐文章于 2025-10-31 11:36:29 发布

原创最新推荐文章于 2025-10-31 11:36:29 发布 · 3.8k 阅读

11 ·

CC 4.0 BY-SA版权

文章标签：

#串口通信 #Unity3D #外部读取 #16进制

通信类专栏收录该内容

2 篇文章

订阅专栏

简介：串口通信，实时传输，设置COM口，打包程序可设置COM口

1. 新建Unity工程，在场景中建立两个GameObject,分别命名：SerialPorts;DataCtl（直接拖拽或查找DataCtl,代码中可自行修改）

2.新建两个C#脚本，分别命名：SerialPortScript；DataCtlScript,并分别挂载到上述两个游戏物体

3.在Assets文件夹中新建文件夹命名：streamingAssets；在streamingAssets文件夹中新建Text文件命名：PortNameConfig；

在PortNameConfig.txt中写入串口名字，例COM7

4.SerialPortScript:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.IO.Ports;
using System.Threading;
using System.IO;
using UnityEngine.Video;
using System;
using System.Text;

public class PortTestScript : MonoBehaviour
{
   public string portName = " ";
   public int baudrate = 9600;
   public Parity parite = Parity.None;
   public int dataBits = 8;
   public StopBits stopbits = StopBits.One;
   SerialPort port;
   Thread portRev, portDeal;
   Queue <string> dataQueue;
   string outStr = string.Empty;

   void Start ()
   {
       //本地路径
       string fileAddress = System.IO.Path.Combine (Application.streamingAssetsPath, "PortNameConfig.txt");


       FileInfo fInfo0 = new FileInfo (fileAddress);
       string s = "";

       if (fInfo0.Exists) {
           StreamReader r = new StreamReader (fileAddress);
           s = r.ReadToEnd ();
           portName = s;
           dataQueue = new Queue<string> ();
           port = new SerialPort (portName, baudrate, parite, dataBits, stopbits);
           port.ReadTimeout = 400;
           try {
               port.Open ();
               Debug.Log ("串口打开成功！");
               portRev = new Thread (PortReceivedThread);
               portRev.IsBackground = true;
               portRev.Start ();
               portDeal = new Thread (DealData);
               portDeal.Start ();
           } catch (System.Exception ex) {
               Debug.Log (ex.Message);
           }
       }

   }

//接收数据
void PortReceivedThread ()
   {
       try {
           byte[] buf = new byte[1];
           string resStr = string.Empty;
           if (port.IsOpen) {
               port.Read (buf, 0, 1);
           }
           if (buf.Length == 0) {
               return;
           }
           if (buf != null) {
               for (int i = 0; i < buf.Length; i++) {
                   //                   resStr += ASCIIEncoding.UTF8.GetString (buf);
                   resStr += buf [i].ToString ("X2") + " ";

                   //                   resStr += Encoding.UTF8.GetString (buf);
                   dataQueue.Enqueue (resStr);
                   resStr += resStr;
                   //                   print (resStr);

               }
           }
       } catch (System.Exception ex) {
//           Debug.Log (ex.Message);
       }
   }

   string message = " ";
//处理
   void DealData ()
   {
       while (dataQueue.Count != 0) {
           for (int i = 0; i < dataQueue.Count; i++) {
               outStr += dataQueue.Dequeue ();

               if (outStr.Length == 24) {

                   Debug.Log (outStr);
                   message = outStr;
                   outStr = string.Empty;
               }
           }
       }
   }

   public GameObject _shotctl;

/// <summary>
/// 传参数
/// </summary>
/// <param name="message"></param>
void GetTheMessage (string message)
   {
//传参数给 _shotctl这个游戏物体
       _shotctl.SendMessage ("GetShotMessage", message);

   }

   void SendData (byte[]msg)
   {
       //这里要检测一下msg
       if (port.IsOpen) {
           port.Write (msg, 0, msg.Length);
       }
   }

   string Info = " ";
   // Update is called once per frame
   void Update ()
   {
       if (port.IsOpen) {


           if (!portRev.IsAlive) {
               portRev = new Thread (PortReceivedThread);
               portRev.IsBackground = true;
               portRev.Start ();

           }
           if (!portDeal.IsAlive) {
               portDeal = new Thread (DealData);
               portDeal.Start ();
           }
       }
       if (Info != message) {
           GetTheMessage (message);
           Info = message = " ";
       }
   }

   void OnApplicationQuit ()
   {
       Debug.Log ("退出！");
       if (port.IsOpen) {
           if (portRev.IsAlive) {
               portRev.Abort ();
           }
           if (portDeal.IsAlive) {
               portDeal.Abort ();
           }
       }

       port.Close ();
   }

}

5.DataCtlScript:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ctlScript : MonoBehaviour
{
   // Use this for initialization
   void Start ()
   {


   }
   // Update is called once per frame
   void Update ()
   {

   }
   public void GetShotMessage (string shotmessage)
   {
//打印 shotmessage
print(shotmessage);

   }

}