功能說明

功能如下:

1、用stm32控制ds18b20采集溫度

2、然后按鍵可以設(shè)置上下限溫度

3、采集的溫度低于下限溫度時(shí)候打開加熱片開始加熱

4、加熱到上限溫度關(guān)閉加熱片停止加熱

5、采集的溫度可以在oled顯示

6、然后弄個(gè)按鍵控制一個(gè)紫外線燈模塊，按一下打開紫外線燈一段時(shí)間，30s后自動(dòng)關(guān)閉

7、將采集的溫度上傳到物聯(lián)網(wǎng)平臺(tái)onenet

系統(tǒng)框圖

原理圖

程序源代碼-部分

int main(void)
{  


  unsigned char *dataPtr = NULL;


  unsigned short timeCount = 0;  //發(fā)送間隔變量


  delay_init();         //延時(shí)函數(shù)初始化    
  NVIC_Configuration();    //設(shè)置NVIC中斷分組2:2位搶占優(yōu)先級，2位響應(yīng)優(yōu)先級
   LED_Init();           //LED端口初始化
  KEY_Init();           //初始化與按鍵連接的硬件接口
  uart2_init(115200);//串口2初始化
  YHGUI_Config();  //OLED初始化
  YHGUI_DispString(0,0,"正在初始化>>>>>>",16,1);  //OLED顯示初始化
   YHGUI_DispString(0,32,"正在連接onenet",16,1);  
  ESP8266_Init();          //初始化ESP8266


  printf("8266_INIT_END
");
  RELAY=1;
  LED0=1;
   while(DS18B20_Init())//溫度初始化
    {


    }
    DS18B20_Get_Temp();//溫度初始化
  while(OneNet_DevLink())      //接入OneNET
  YHGUI_DispString(0,32,"連接onenet成功  ",16,1);  
  delay_ms(500);
  printf("接入onenet成功");
  YHGUI_DispString(0,32,"                ",16,1);
  YHGUI_DispString(0,0,"                ",16,1);
  while(1) 
  {    
     keyscan();




    temperature = DS18B20_Get_Temp();//獲取溫度
          temperature=temperature/10;
            if(temperature<0)
            {
              temperature=-temperature;          //轉(zhuǎn)為正數(shù)    
            }
            if(set_flag==0){
              if(time_miao==1)


              sprintf(dis1," 恒溫外賣柜 %02ds ",add_miao);
              else


              sprintf(dis1," 恒溫外賣柜       ");


            YHGUI_DispString(0,0,dis1,16,1);}
            else if(set_flag==1)YHGUI_DispString(0,0,"  溫度上限設(shè)置   ",16,1);
            else if(set_flag==2)YHGUI_DispString(0,0,"  溫度下限設(shè)置   ",16,1);
            sprintf(dis1," 當(dāng)前溫度:%02d℃  ",temperature);
            YHGUI_DispString(0,16,dis1,16,1);    //顯示  
            sprintf(dis1," 溫度上限:%02d℃  ",temp_high);
            YHGUI_DispString(0,32,dis1,16,1);    //顯示  
            sprintf(dis1," 溫度下限:%02d℃  ",temp_low);
            YHGUI_DispString(0,48,dis1,16,1);    //顯示  
             if(temperaturetemp_high)RELAY=0;
    if(++timeCount >= 5)    //時(shí)間間隔1s
    {
      if(time_miao==1){add_miao++;LED0=1;}else LED0=0;
      if(add_miao>30){add_miao=0;time_miao=0;}






        delay_ms(100);




        humidityH=11;    
        humidityL=22;   
        temperatureH=temperature;   //溫度整數(shù)部分


        temperatureL=0;   //溫度小數(shù)部分
        printf("hum temp=%d .%d %d .%d
",humidityH,humidityL,temperatureH,temperatureL);


      printf( "OneNet_SendData
");//通過串口1發(fā)送提示信息（要開始發(fā)送數(shù)據(jù)了）


        OneNet_SendData();//發(fā)送數(shù)據(jù)給onenet


        printf("send_data_end
");
        timeCount = 0;


        ESP8266_Clear();
    }


    dataPtr = ESP8266_GetIPD(0);//獲取平臺(tái)返回的數(shù)據(jù)
    if(dataPtr != NULL)//如果返回?cái)?shù)據(jù)不為空
      OneNet_RevPro(dataPtr);//平臺(tái)返回?cái)?shù)據(jù)檢測


    delay_ms(10);


}


}

審核編輯：湯梓紅