Arduino 制作基于OneNET平台的继电器控制（EDP协议）（二）

╰半夏微凉° 2022-03-27 07:46 459阅读 0赞

## 所需硬件 ##

*  Arduino UNO
 *  ESP8266-01S
 *  继电器模块

## 准备工作 ##

首先在制作前，我们先通过Arduino IDE 烧录一下ESP8266的程序，具体烧录步骤在 [https://blog.csdn.net/m0\_37738838/article/details/83999561][https_blog.csdn.net_m0_37738838_article_details_83999561] 中可以查看，有部分地方需要修改的  
IP地址和端口号修改成OneNET EDP协议的IP地址和端口

> IP: [jjfaedp.hedevice.com][]  
> PORT: 876

烧录完成后，看一下我们在程序中设置连接的WIFI是否连上，如果已连接上就没问题。

## 接线 ##

<table> 
 <thead> 
  <tr> 
   <th>ESP8266</th> 
   <th>Arduino UNO</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>TX</td> 
   <td>RX</td> 
  </tr> 
  <tr> 
   <td>RX</td> 
   <td>TX</td> 
  </tr> 
  <tr> 
   <td>VCC</td> 
   <td>3.3V</td> 
  </tr> 
  <tr> 
   <td>GND</td> 
   <td>GND</td> 
  </tr> 
  <tr> 
   <td>CH_PD</td> 
   <td>3.3V</td> 
  </tr> 
 </tbody> 
</table>

<table> 
 <thead> 
  <tr> 
   <th>继电器</th> 
   <th>Arduino UNO</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>信号脚</td> 
   <td>D9</td> 
  </tr> 
  <tr> 
   <td>VCC</td> 
   <td>5V</td> 
  </tr> 
  <tr> 
   <td>GND</td> 
   <td>GND</td> 
  </tr> 
 </tbody> 
</table>

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70]

## 程序 ##

edp.c程序下载链接： [https://download.csdn.net/download/m0\_37738838/10912961][https_download.csdn.net_download_m0_37738838_10912961]

## 演示效果 ##

[https://v.youku.com/v\_show/id\_XNDA3MjU4MDI3Mg==.html?spm=a2h3j.8428770.3416059.1][https_v.youku.com_v_show_id_XNDA3MjU4MDI3Mg_.html_spm_a2h3j.8428770.3416059.1]

## 流程说明 ##

#include <Wire.h>
    #include<Arduino.h>
    #include<math.h>
    #include<SoftwareSerial.h>
    #include"edp.c"
    #include <Metro.h> 
    
    #define JDQ 7 //设置继电器模块输出引脚为9号引脚
    
    #define KEY  "2lSvvpOO4UBjuMwdQSN7jVVe36A="    //APIkey
    #define ID   "513758691"                          //设备ID  fish_pond
    #define PUSH_ID NULL
    #define tem  "TEM"
    
    //串口
    #define _baudrate 115200 //波特率
    #define _rxpin 2 
    #define _txpin 3
    #define WIFI_UART dbgSerial //数据传送串口
    #define DBG_UART Serial //调试打印串口
    static int time_=3000;
    Metro Write_metro = Metro(time_); 
    SoftwareSerial dbgSerial( _rxpin, _txpin ); // 软串口，调试打印
    edp_pkt *pkt;
    static int edp_connect = 0; //连接标识
    bool read_package = true; //连接标识
    void setup()
    {
      char buf[100] = {0};
      int tmp;
      
      Serial.begin(9600);//设置通讯波特率为9600
      pinMode(JDQ,OUTPUT); //继电器
      
      WIFI_UART.begin( _baudrate );
      DBG_UART.begin( 9600 );
      WIFI_UART.setTimeout(3000);    //设置find超时时间
      delay(3000);
      DBG_UART.println("Hello World!");
      delay(2000);
    }
    
    void loop()
    {
      bool trigger = false;
      edp_pkt rcv_pkt;
      unsigned char pkt_type;
      int i, tmp;
       /*EDP连接*/
      if (!edp_connect) {
        while (WIFI_UART.available()) WIFI_UART.read(); //清空串口接收缓存
        packetSend(packetConnect(ID, KEY)); //发送EDP连接包
        while (!WIFI_UART.available()); //等待EDP连接应答
        /*
        WIFI_UART.readBytes(buffer, length)从串口读字符到一个缓冲区       
        buffer：用来存储字节（char[]或byte[]）的缓冲区
        length：读取的字节数（int）
        */
        if ((tmp = WIFI_UART.readBytes(rcv_pkt.data, sizeof(rcv_pkt.data))) > 0) {  
          rcvDebug(rcv_pkt.data, tmp);//打印onenet下发的数据包
          if (rcv_pkt.data[0] == 0x20 && rcv_pkt.data[2] == 0x00 && rcv_pkt.data[3] == 0x00) {//onenet判断下发的数据包是为0x20 0x02 0x00 0x00 
            edp_connect = 1;
            DBG_UART.println("EDP connected.");//连接成功
          }
          else
            DBG_UART.println("EDP again connected."); //重新连接   
        }
        packetClear(&rcv_pkt);//数据包清理 初始化内存
     }
      
      read_package=true;
    
    //解析平台下发数据，这里只关心edp控制命令
      while (WIFI_UART.available())
      {
       
        readEdpPkt(&rcv_pkt);
        if (isEdpPkt(&rcv_pkt))//判断是否为完整edp包
        {
          if(rcv_pkt.data[0] == 0x40){//断开连接后，edp_connect归零，重新连接
            edp_connect = 0;
            DBG_UART.println("waahaha");
          }
          read_package=false;
          pkt_type = rcv_pkt.data[0];
          switch (pkt_type)
          {
            case CMDREQ:
              char edp_command[50];
              char edp_cmd_id[40];
              long id_len, cmd_len, rm_len;
              memset(edp_command, 0, sizeof(edp_command));//EDP命令接收缓存数组
              memset(edp_cmd_id, 0, sizeof(edp_cmd_id));//EDP命令ID接收缓存数组
              edpCommandReqParse(&rcv_pkt,edp_cmd_id,edp_command,&rm_len,&id_len,&cmd_len);//解析edp命令
              DBG_UART.print("rm_len: ");
              DBG_UART.println(rm_len, DEC);
              delay(10);
              DBG_UART.print("id_len: ");
              DBG_UART.println(id_len, DEC);
              delay(10);
              DBG_UART.print("cmd_len: ");
              DBG_UART.println(cmd_len, DEC);
              delay(10);
              DBG_UART.print("id: ");
              DBG_UART.println(edp_cmd_id);
              delay(10);
              DBG_UART.print("cmd: ");
              DBG_UART.println(edp_command);
              delay(50);       
              if (atoi(edp_command) == 1)   //LED开关
              {
                digitalWrite(JDQ, LOW);
              }
              if (atoi(edp_command) == 0){
                digitalWrite(JDQ, HIGH);  
              }
               
              break;
            default:
              DBG_UART.print("unknown type: ");
              DBG_UART.println(pkt_type, HEX);
              break;
          }
        }
      }
     /*
      if(edp_connect==1){//判断是否连接
        if(Write_metro.check()&&read_package)
        packetSend(packetDataSaveTrans(ID, tem,"25")); //将温度的数据打包发送至onenet平台
     }*/
     
      if (rcv_pkt.len > 0)
        packetClear(&rcv_pkt);
        delay(150);
    }
    
    
    /*
     * readEdpPkt
     * 从串口缓存中读数据到接收缓存
     */
    bool readEdpPkt(edp_pkt *p)
    {
      int tmp;
      if ((tmp = WIFI_UART.readBytes(p->data + p->len, sizeof(p->data))) > 0 )
      {
        rcvDebug(p->data + p->len, tmp);
        p->len += tmp;
      }
      return true;
    }
    /*
       packetSend
       将待发数据发送至串口，并释放到动态分配的内存
    */
    void packetSend(edp_pkt* pkt)
    {
      if (pkt != NULL)
      {
        WIFI_UART.write(pkt->data, pkt->len);    //串口发送
        WIFI_UART.flush();
        free(pkt);              //回收内存
      }
    }
    
    void rcvDebug(unsigned char *rcv, int len)
    {
      int i;
      DBG_UART.print("rcv len: ");
      DBG_UART.println(len, DEC);
      for (i = 0; i < len; i++)
      {
        DBG_UART.print(rcv[i], HEX);
        DBG_UART.print(" ");
      }
      DBG_UART.println("");
    }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70 1]

![重新连接][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70 2]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70 3]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70 4]

[https_blog.csdn.net_m0_37738838_article_details_83999561]: https://blog.csdn.net/m0_37738838/article/details/83999561
[jjfaedp.hedevice.com]: http://jjfaedp.hedevice.com
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70]: /images/20220327/858d09413dc748ac84e5e4f639fdcff3.png
[https_download.csdn.net_download_m0_37738838_10912961]: https://download.csdn.net/download/m0_37738838/10912961
[https_v.youku.com_v_show_id_XNDA3MjU4MDI3Mg_.html_spm_a2h3j.8428770.3416059.1]: https://v.youku.com/v_show/id_XNDA3MjU4MDI3Mg==.html?spm=a2h3j.8428770.3416059.1
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70 1]: /images/20220327/2039650ff1704b4baa61c822fc4c96ec.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70 2]: /images/20220327/6eb5d466092a416382f64538447616f2.png
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70 4]: /images/20220327/228a5d34fed24fe9bc3b4b2e20d17fac.png