基于arduino制作农业大棚监控系统（采集）

淩亂°似流年 2022-02-17 09:44 351阅读 0赞

## 所需硬件： ##

*  arduino uno
 *  esp8266-01s x2
 *  dh11温湿度传感器
 *  光敏传感器
 *  土壤湿度传感器
 *  继电器
 *  灯泡
 *  5伏电源

## 环境 ##

*  Arduino IDE
 *  一个esp8266烧录程序，作为环境采集单元WiFi，参照下面链接
 *  [https://blog.csdn.net/m0\_37738838/article/details/83999561][https_blog.csdn.net_m0_37738838_article_details_83999561]
 *  esp8266实现远程继电器控制参照下面链接
 *  [https://blog.csdn.net/m0\_37738838/article/details/89396244][https_blog.csdn.net_m0_37738838_article_details_89396244]

## 接线 ##

<table> 
 <thead> 
  <tr> 
   <th>arduino</th> 
   <th>传感器</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>A2</td> 
   <td>光敏信号引脚</td> 
  </tr> 
  <tr> 
   <td>A3</td> 
   <td>土壤湿度信号引脚</td> 
  </tr> 
  <tr> 
   <td>9</td> 
   <td>dh11信号引脚</td> 
  </tr> 
 </tbody> 
</table>

## 实物及视频演示 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70]  
视频链接：  
[https://v.youku.com/v\_show/id\_XNDE0MzYyODczMg==.html?spm=a2h3j.8428770.3416059.1][https_v.youku.com_v_show_id_XNDE0MzYyODczMg_.html_spm_a2h3j.8428770.3416059.1]

网页链接：  
[https://open.iot.10086.cn/iotbox/appsquare/appview?openid=1a00abf555d05daba8241432f806b256][https_open.iot.10086.cn_iotbox_appsquare_appview_openid_1a00abf555d05daba8241432f806b256]

## 程序（采集） ##

#include <dht11.h>              //引用dht11库文件
    #include <Metro.h>
    #define DHT11PIN 9              //定义温湿度针脚号为9号引脚
    #define SOILPIN A3  //土壤湿度传感器引脚为A2
    #define LIGHTPIN A2  //光线传感器
    
    dht11 DHT11; 
    Metro metro_post=Metro(1500);
    int tem,hum,light,soil;
    int tem_value,hum_value,light_value,soil_value;//过滤后的值
    
    
    void setup() {
      Serial.begin(115200);           //设置波特率参数
      pinMode(DHT11PIN,INPUT);  //设置引脚为输入模式
      pinMode(SOILPIN,INPUT); 
      pinMode(LIGHTPIN,INPUT); 
      pinMode(RELAYPIN,OUTPUT);
    //  Serial.println(F("reading Dh11 begin. \n"));
    // mySerial.begin(115200);           //设置波特率参数
    }
    
    void loop() {
      static unsigned long sensortStamp = 0;
      if(millis()-sensortStamp>1000){
        sensortStamp=millis();
        int chk = DHT11.read(DHT11PIN);                 //将读取到的值赋给chk
        tem=(int)DHT11.temperature;               //将温度值赋值给tem
        hum=(int)DHT11.humidity;                   //将湿度值赋给hum
        soil=analogRead(SOILPIN);
        light=analogRead(LIGHTPIN)/10;
        light>99?99:light;
        tem_value=Filter(tem);
        hum_value=Filter(hum);
        light_value=Filter(light);
        soil_value=Filter(soil);
        
        if(metro_post.check()){
          post_onenet(tem_value,hum_value,light_value,soil_value);
        }
    //    Serial.print(F("Real Time tem: "));  
    //    Serial.println(tem);  
    //    Serial.print(F("Real Time hum: "));  
    //    Serial.println(hum);  
    //    Serial.print("Soil:");
    //    Serial.println(soil);
    //    Serial.print("LIGHT:");
    //    Serial.println(light);
      }
    
    }
    
    
    
    void post_onenet(int tem,int hum,int light,int soil){
        Serial.println("POST http://api.heclouds.com/devices/522974357/datapoints?type=3 HTTP/1.1");     //打印出http协议post命令
        Serial.println("api-key: =A8iSVYS8dlMGU0nz7=ibOtlsnM= "); //apikey OneNet提供的key
        Serial.println("Host:api.heclouds.com");                //主机
        Serial.println("Connection:close");                     //断开连接  
        Serial.println("Content-Length:38");                    //传送的字节
     
        Serial.print("\r\n{\"TEM\":");                          //换行 传送格式{"TEM":tem,"HUM":hum}
        Serial.print(tem);                                //打印温度数据
        Serial.print(",\"HUM\":");                              //传送格式
        Serial.print(hum);                                //打印湿度数据
        Serial.print(",\"LIG\":");                              //传送格式
        Serial.print(light);                                //打印温度数据
        Serial.print(",\"SOI\":");                              //传送格式
        Serial.print(soil);                                //打印湿度数据
        Serial.print("}");                                      //打印出}
        Serial.println();
        
      }
     
      // 中位值平均滤波法（又称防脉冲干扰平均滤波法）（算法1）
    #define FILTER_N 6
    int Filter(int GetData2) {
      int i, j;
      int filter_temp, filter_sum = 0;
      int filter_buf[FILTER_N];
      for(i = 0; i < FILTER_N; i++) {
        filter_buf[i] = GetData2;
        delay(1);
      }
      // 采样值从小到大排列（冒泡法）
      for(j = 0; j < FILTER_N - 1; j++) {
        for(i = 0; i < FILTER_N - 1 - j; i++) {
          if(filter_buf[i] > filter_buf[i + 1]) {
            filter_temp = filter_buf[i];
            filter_buf[i] = filter_buf[i + 1];
            filter_buf[i + 1] = filter_temp;
          }
        }
      }
      // 去除最大最小极值后求平均
      for(i = 1; i < FILTER_N - 1; i++) filter_sum += filter_buf[i];
      return filter_sum / (FILTER_N - 2);
    }

[https_blog.csdn.net_m0_37738838_article_details_83999561]: https://blog.csdn.net/m0_37738838/article/details/83999561
[https_blog.csdn.net_m0_37738838_article_details_89396244]: https://blog.csdn.net/m0_37738838/article/details/89396244
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3NzM4ODM4_size_16_color_FFFFFF_t_70]: /images/20220217/f9ddc586590c489fb5254ad548723272.png
[https_v.youku.com_v_show_id_XNDE0MzYyODczMg_.html_spm_a2h3j.8428770.3416059.1]: https://v.youku.com/v_show/id_XNDE0MzYyODczMg==.html?spm=a2h3j.8428770.3416059.1
[https_open.iot.10086.cn_iotbox_appsquare_appview_openid_1a00abf555d05daba8241432f806b256]: https://open.iot.10086.cn/iotbox/appsquare/appview?openid=1a00abf555d05daba8241432f806b256