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      1. 專注電子技術學習與研究
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        物聯網之遠程控制家電開關

        作者:小東   來源:轉自小東   點擊數:  更新時間:2014年05月30日   【字體:

           基于Dccduino uno 結合Dcc ethernet W5100擴張在yeelink物聯網平臺控制家電開關的例子,本教程實現的功能通過PC端網頁服務器和手機APP的控制一個LED.   

         

        硬件準備:


             軟件準備:
        1.安裝Arduino開發環境,如果您的電腦上沒有安裝Arduino開發環境,點擊這里學習如何安裝Arduino
        2.成為Yeelink開發者,如果您還沒有注冊,點擊這里注冊。
        3.下載Yeelink移動客戶端APP,點擊這里下載


        在yeelink平臺添加設備和傳感器
        1.進入用戶中心

        2.增加新設備





        3.增加傳感器




        下一步往DCCduino上傳代碼:

        #include
        #include
        #include
        #include

        byte buff[2];

        // for yeelink api
        #define APIKEY         "xxxxxxxxxxxxxxxxxxxx" // 此處替換為你自己的API KEY
        #define DEVICEID       7003 // 此處替換為你的設備編號
        #define SENSORID1       10926 // 此處替換為你的傳感器編號


        // assign a MAC address for the ethernet controller.
        byte mac[] = { 0x00, 0x1D, 0x72, 0x82, 0x35, 0x9D};
        // initialize the library instance:
        EthernetClient client ;
        char server[] = "api.yeelink.net";   // name address for yeelink API

        unsigned long lastConnectionTime = 0;          // last time you connected to the server, in milliseconds
        boolean lastConnected = false;                 // state of the connection last time through the main loop
        const unsigned long postingInterval = 3*1000; // delay between 2 datapoints, 30s
        String returnValue = "";
        boolean ResponseBegin = false;

        void setup() {
          pinMode(5, OUTPUT);
          Wire.begin();
          // start serial port:
         Serial.begin(57600);
         
          // start the Ethernet connection with DHCP:
          if (Ethernet.begin(mac) == 0) {
            Serial.println("Failed to configure Ethernet using DHCP");
            for(;;)
              ;
          }
          else {
            Serial.println("Ethernet configuration OK");
          }
        }

        void loop() {
          // if there's incoming data from the net connection.
          // send it out the serial port.  This is for debugging
          // purposes only:

          if (client.available()) {
            char c = client.read();
           // Serial.print(c);
              if (c == '{')
                ResponseBegin = true;
              else if (c == '}')
                ResponseBegin = false;

              if (ResponseBegin)
                returnValue += c;  
          }
          if (returnValue.length() !=0 && (ResponseBegin == false))
          {
            Serial.println(returnValue);
           
            if (returnValue.charAt(returnValue.length() - 1) == '1') {
              Serial.println("turn on the LED");
              digitalWrite(5, HIGH);
            }
              else if(returnValue.charAt(returnValue.length() - 1) == '0') {
              Serial.println("turn off the LED");
              digitalWrite(5, LOW);
            }
             returnValue = "";
          }
          // if there's no net connection, but there was one last time
          // through the loop, then stop the client:
          if (!client.connected() && lastConnected) {
            Serial.println();
            Serial.println("disconnecting.");
            client.stop();
          }
         
          // if you're not connected, and ten seconds have passed since
          // your last connection, then connect again and send data:
          if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) {
            // read sensor data, replace with your code
            //int sensorReading = readLightSensor();
            Serial.print("yeelink:");
            //get data from server 
            getData();
          }
          // store the state of the connection for next time through
          // the loop:
          lastConnected = client.connected();
        }

         

        // this method makes a HTTP connection to the server and get data back
        void getData(void) {
          // if there's a successful connection:
          if (client.connect(server, 80)) {
            Serial.println("connecting...");
            // send the HTTP GET request:
           
            client.print("GET /v1.0/device/");
            client.print(DEVICEID);
            client.print("/sensor/");
            client.print(SENSORID1);
            client.print("/datapoints");
            client.println(" HTTP/1.1");
            client.println("Host: api.yeelink.net");
            client.print("Accept: *");
            client.print("/");
            client.println("*");
            client.print("U-ApiKey: ");
            client.println(APIKEY);
            client.println("Content-Length: 0");
            client.println("Connection: close");
            client.println();
            Serial.println("print get done.");
           
          }
          else {
            // if you couldn't make a connection:
            Serial.println("connection failed");
            Serial.println();
            Serial.println("disconnecting.");
            client.stop();
          }
           // note the time that the connection was made or attempted:
          lastConnectionTime = millis();
        }



        如上圖接線,前提是保證你的網線是鏈接到路由器上面能上網的,LED的端口鏈接到數字端口5腳,按照設想我們是在PC端或者手機APP遠程控制這個LED,好了,切換
        我們的設備管理器,控制我們的開關:

        可以看到LED是受控了,也就說PC端能控制了。

        再轉化到我們的手機APP,打開yeelink應用,找到你的設備進行操作



        大伙覺得就控制一個led不好玩是吧,看到桌面的小電風扇,直接拿開刀,話不多說,看視頻。

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