項目成品圖片：

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項目簡介

1.功能詳解

STM32智能家居(機智云)升級版

功能如下：

檢測功能：監測環境溫濕度、煙霧濃度、一氧化碳、空氣質量、光照強度、大氣壓強

顯示功能：將檢測到的數據顯示在OLED上

控制功能：系統可以控制LED燈、步進電機（窗戶）

手動模式：機智云APP遠程控制LED燈和步進電機。

自動模式：系統檢測到煙霧濃度/一氧化碳/空氣質量超出閾值時、蜂鳴報警并開窗通風；光線低于閾值時，自動開啟LED燈

閾值調節：按鍵調節系統閾值

手機APP：通過ESP8266 WIFI模塊連接網絡，接入機智云服務器，實現數據上報和控制下發

2.材料清單

STM32F103C8T6單片機

OLED 屏幕

DHT11溫濕度傳感器

光敏電阻

MQ-2煙霧傳感器

MQ-7一氧化碳傳感器

MQ-135空氣質量傳感器

ESP8266-01S(WIFI模塊)

步進電機

有源蜂鳴器

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原理圖設計

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PCB硬件設計

PCB圖

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程序設計

#include"stm32f10x.h" // Device header#include"oled.h"#include"adcx.h"#include"bmp280.h"#include"sensormodules.h"#include"dht11.h"#include"key.h"#include"tim2.h"#include"tim3.h"#include"flash.h"#include"motor.h"#include"led.h"#include"usart.h"#include"iwdg.h"
SensorModules sensorData;//聲明傳感器模塊的結構體變量SensorThresholdValue Sensorthreshold;//聲明傳感器閾值結構體變量
#defineKEY_Long111
#defineKEY_11#defineKEY_22#defineKEY_33#defineKEY_44
#defineFLASH_START_ADDR0x0801f000//寫入的起始地址
uint8_tmotorFlag =0;uint8_toledPages =1;//系統顯示頁面uint8_tmodel;//系統模式
typedefenum{DISPLAY_PAGE1 =1,DISPLAY_PAGE2,SETTINGS_PAGE} OLED_PAGES;
/** * @brief 顯示菜單1的固定內容 * @param 無 * @retval 無 */voidOLED_Menu1(void){//顯示“溫度： C”OLED_ShowChinese(1,1,48);OLED_ShowChinese(1,2,49);OLED_ShowChar(1,5,':');OLED_ShowChar(1,8,'C');
//顯示“濕度: %”OLED_ShowChinese(1,5,50);OLED_ShowChinese(1,6,51);OLED_ShowChar(1,13,':');OLED_ShowChar(1,16,'%');
//顯示”光照強度： Lux“OLED_ShowChinese(2,1,8);OLED_ShowChinese(2,2,9);OLED_ShowChinese(2,3,10);OLED_ShowChinese(2,4,11);OLED_ShowChar(2,9,':');OLED_ShowString(2,14,"Lux");
//顯示“大氣壓強： ”OLED_ShowChinese(3,1,12);OLED_ShowChinese(3,2,13);OLED_ShowChinese(3,3,14);OLED_ShowChinese(3,4,15);OLED_ShowChar(3,9,':');OLED_ShowString(3,14,"hPa");
//顯示“系統模式：”OLED_ShowChinese(4,1,28);OLED_ShowChinese(4,2,29);OLED_ShowChinese(4,3,30);OLED_ShowChinese(4,4,31);OLED_ShowChar(4,9,':');}
/** * @brief 顯示菜單2的固定內容 * @param 無 * @retval 無 */voidOLED_Menu2(void){//顯示“煙霧濃度： ppm”OLED_ShowChinese(1,1,20);OLED_ShowChinese(1,2,21);OLED_ShowChinese(1,3,22);OLED_ShowChinese(1,4,23);OLED_ShowChar(1,9,':');OLED_ShowString(1,13,"ppm");
//顯示“一氧化碳： ppm”OLED_ShowChinese(2,1,16);OLED_ShowChinese(2,2,17);OLED_ShowChinese(2,3,18);OLED_ShowChinese(2,4,19);OLED_ShowChar(2,9,':');OLED_ShowString(2,13,"ppm");
//顯示“空氣質量： ppm”OLED_ShowChinese(3,1,24);OLED_ShowChinese(3,2,25);OLED_ShowChinese(3,3,26);OLED_ShowChinese(3,4,27);OLED_ShowChar(3,9,':');OLED_ShowString(3,13,"ppm");}
/** * @brief 顯示菜單1的傳感器數據 * @param 無 * @retval 無 */voidSensorDataDisplay1(void){//顯示溫度數據OLED_ShowNum(1,6, sensorData.temp,2);
//顯示濕度數據OLED_ShowNum(1,14, sensorData.humi,2);
//顯示光照強度數據OLED_ShowNum(2,10, sensorData.lux,4);
//顯示大氣壓強數據OLED_ShowNum(3,10,1020,4);

//顯示系統狀態數據if(!model){OLED_ShowChinese(4,6,36);OLED_ShowChinese(4,7,37);}else{OLED_ShowChinese(4,6,32);OLED_ShowChinese(4,7,33);}}
/** * @brief 顯示菜單2的傳感器數據 * @param 無 * @retval 無 */voidSensorDataDisplay2(void){
//顯示煙霧濃度數據OLED_ShowNum(1,10, sensorData.smoke,3);
//顯示一氧化碳數據OLED_ShowNum(2,10, sensorData.CO,3);
//顯示空氣質量數據OLED_ShowNum(3,10, sensorData.AQI,3);}
/** * @brief 顯示系統閾值設置界面1 * @param 無 * @retval 無 */voidOLED_SetInterfacevoid(void){//顯示“光照閾值”OLED_ShowChinese(1,2,8);OLED_ShowChinese(1,3,9);OLED_ShowChinese(1,4,42);OLED_ShowChinese(1,5,43);OLED_ShowChar(1,11,':');
//顯示“煙霧閾值”OLED_ShowChinese(2,2,20);OLED_ShowChinese(2,3,21);OLED_ShowChinese(2,4,42);OLED_ShowChinese(2,5,43);OLED_ShowChar(2,11,':');
//顯示“一氧化碳閾值”OLED_ShowString(3,3,"CO");OLED_ShowChinese(3,4,42);OLED_ShowChinese(3,5,43);OLED_ShowChar(3,11,':');
//顯示“空氣質量閾值”OLED_ShowString(4,3,"AQI");OLED_ShowChinese(4,4,42);OLED_ShowChinese(4,5,43);OLED_ShowChar(4,11,':');
//顯示光照閾值數值OLED_ShowNum(1,12, Sensorthreshold.luxValue,4);
//顯示煙霧閾值數值OLED_ShowNum(2,12, Sensorthreshold.smokeValue,3);
//顯示一氧化碳閾值數值OLED_ShowNum(3,12, Sensorthreshold.COValue,3);
//顯示空氣質量閾值數值OLED_ShowNum(4,12, Sensorthreshold.AQIValue,3);}
/** * @brief 記錄閾值界面下按KEY1的次數 * @param 無 * @retval 返回次數 */uint8_tSetSelection(void){staticuint8_tcount =1;if(KeyNum == KEY_1){KeyNum =0;count++;if(count >4){count =1;}}returncount;}
/** * @brief 顯示閾值界面的選擇符號 * @param num 為顯示的位置 * @retval 無 */voidOLED_Option(uint8_tnum){switch(num){case1:OLED_ShowChar(1,1,'>');OLED_ShowChar(2,1,' ');OLED_ShowChar(3,1,' ');OLED_ShowChar(4,1,' ');break;case2:OLED_ShowChar(1,1,' ');OLED_ShowChar(2,1,'>');OLED_ShowChar(3,1,' ');OLED_ShowChar(4,1,' ');break;case3:OLED_ShowChar(1,1,' ');OLED_ShowChar(2,1,' ');OLED_ShowChar(3,1,'>');OLED_ShowChar(4,1,' ');break;case4:OLED_ShowChar(1,1,' ');OLED_ShowChar(2,1,' ');OLED_ShowChar(3,1,' ');OLED_ShowChar(4,1,'>');break;default:break;}}
/** * @brief 對閾值界面的傳感器閾值進行修改 * @param num 為當前用戶需要更改的傳感器閾值位置 * @retval 無 */voidThresholdModification(uint8_tnum){switch(num){case1:if(KeyNum == KEY_3){KeyNum =0;Sensorthreshold.luxValue +=10;if(Sensorthreshold.luxValue >2000){Sensorthreshold.luxValue =0;}}elseif(KeyNum == KEY_4){KeyNum =0;Sensorthreshold.luxValue -=10;if(Sensorthreshold.luxValue >2000){Sensorthreshold.luxValue =2000;}}break;
case2:if(KeyNum == KEY_3){KeyNum =0;Sensorthreshold.smokeValue +=10;if(Sensorthreshold.smokeValue >500){Sensorthreshold.smokeValue =0;}}elseif(KeyNum == KEY_4){KeyNum =0;Sensorthreshold.smokeValue -=10;if(Sensorthreshold.smokeValue >500){Sensorthreshold.smokeValue =500;}}break;case3:if(KeyNum == KEY_3){KeyNum =0;Sensorthreshold.COValue +=10;if(Sensorthreshold.COValue >500){Sensorthreshold.COValue =0;}}elseif(KeyNum == KEY_4){KeyNum =0;Sensorthreshold.COValue -=10;if(Sensorthreshold.COValue >500){Sensorthreshold.COValue =500;}}break;case4:if(KeyNum == KEY_3){KeyNum =0;Sensorthreshold.AQIValue +=10;if(Sensorthreshold.AQIValue >500){Sensorthreshold.AQIValue =0;}}elseif(KeyNum == KEY_4){KeyNum =0;Sensorthreshold.AQIValue -=10;if(Sensorthreshold.AQIValue >500){Sensorthreshold.AQIValue =500;}}break;default:break;}}
/** * @brief 根據標志位控制步進電機的運行 * @param 無 * @retval 無 */voidMotorOperation(void){if(motorFlag ==1){MOTOR_Direction_Angle(1,0,90,1);MOTOR_STOP();motorFlag =0;}elseif(motorFlag ==2){MOTOR_Direction_Angle(0,0,90,1);MOTOR_STOP();motorFlag =0;}
}
/** * @brief 傳感器數據掃描 * @param 無 * @retval 無 */voidSensorScan(void){DHT11_Read_Data(&sensorData.humi, &sensorData.temp);Get_Average_LDR_LUX(&sensorData.lux);Get_Average_MQ2_PPM(&sensorData.smoke);Get_Average_MQ7_PPM(&sensorData.CO);Get_Average_MQ135_PPM(&sensorData.AQI);sensorData.hPa = (uint32_t)BMP280_Get_Pressure();}

intmain(void){ADCX_Init(); Timer2_Init(9,14398);Uart2_Init(9600);Uart1_Init(115200);IWDG_Init();
OLED_Init();Bmp_Init();DHT11_Init();Key_Init();MOTOR_Init();LED_Init();Buzzer_Init();
Sensorthreshold.luxValue =FLASH_R(FLASH_START_ADDR);//從指定頁的地址讀FLASHSensorthreshold.smokeValue =FLASH_R(FLASH_START_ADDR+2);//從指定頁的地址讀FLASHSensorthreshold.COValue =FLASH_R(FLASH_START_ADDR+4);//從指定頁的地址讀FLASHSensorthreshold.AQIValue =FLASH_R(FLASH_START_ADDR+6);//從指定頁的地址讀FLASH
GENERAL_TIM_Init();userInit();//完成機智云初始賦值gizwitsInit();//開辟一個環形緩沖區while(1){
IWDG_ReloadCounter();//使能重裝載寄存器計數SensorScan();//獲取傳感器數據

switch(oledPages){caseDISPLAY_PAGE1:OLED_Menu1();//顯示主頁面1固定信息SensorDataDisplay1();//顯示傳感器1數據MotorOperation();
/*按鍵按下時進入主頁面2*/if(KeyNum == KEY_2){KeyNum =0;oledPages = DISPLAY_PAGE2;OLED_Clear();}
/*按鍵按下時切換模式*/if(KeyNum == KEY_1){KeyNum =0;
model = !model;if(!model){LED_OFF();Buzzer_OFF();}}
/*按鍵按下時進入閾值設計界面*/if(KeyNum == KEY_Long1){KeyNum =0;oledPages = SETTINGS_PAGE;OLED_Clear();}break;
caseDISPLAY_PAGE2:OLED_Menu2();SensorDataDisplay2();MotorOperation();
/*按鍵按下時進入主頁面2*/if(KeyNum == KEY_2){KeyNum =0;oledPages = DISPLAY_PAGE1;OLED_Clear();}break;
caseSETTINGS_PAGE:OLED_SetInterfacevoid();//顯示閾值設置界面的固定內容OLED_Option(SetSelection());//實現閾值設置頁面的選擇功能ThresholdModification(SetSelection());//實現閾值調節功能
//判斷是否退出閾值設置界面if(KeyNum == KEY_2){KeyNum =0;oledPages = DISPLAY_PAGE1;//跳轉到主界面OLED_Clear();//清屏
//存儲修改的傳感器閾值至flash內FLASH_W(FLASH_START_ADDR, Sensorthreshold.luxValue, Sensorthreshold.smokeValue,Sensorthreshold.COValue, Sensorthreshold.AQIValue);}break;default:break;}
userHandle();//更新機智云數據點變量存儲的值gizwitsHandle((dataPoint_t *)¤tDataPoint);//數據上傳至機智云}}

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實驗效果