STM32+ 华为云 IOT 制作酒驾监控系统：上车就监控

MQTT (1883)	a161a58a78.iot-mqtts.cn-north-4.myhuaweicloud.com	

设备ID625cd29cecf9c41c38215ba5_1126626497
设备密钥1126626497    {    "device_id": "625cd29cecf9c41c38215ba5_1126626497",    "secret": "1126626497"}

//订阅主题: 平台下发消息给设备$oc/devices/625cd29cecf9c41c38215ba5_1126626497/sys/messages/down
//设备上报数据$oc/devices/625cd29cecf9c41c38215ba5_1126626497/sys/properties/report
//上报的属性消息 (一次可以上报多个属性,在json里增加就行了){"services": [{"service_id": "MQ3","properties":{"MQ3":50}}]}

#include "stm32f10x.h"#include "led.h"#include "delay.h"#include "key.h"#include "usart.h"#include <string.h>#include "timer.h"#include "oled.h"#include "adc.h"#include <string.h>#include <stdlib.h>#include "font.h"#include "sim800c.h"#include "mqtt.h"
/*硬件连接方式:1. TFT 1.44 寸彩屏接线GND   电源地VCC   接5V或3.3v电源SCL   接PC8（SCL）SDA   接PC9（SDA）RST   接PC10DC    接PB7CS    接PB8BL	  接PB11
2. 蜂鸣器VCC--->3.3VDAT--->PA6GND--->GND
3. 酒精检测传感器MQ3VCC--->3.3VGND--->GNDDAT--->PA1
4. 板载LED灯接线LED1---PA8LED2---PD2
5. 板载按键接线K0---PA0 K1---PC5 K2---PA15
6. SIM800C--GSM模块GND----GNDVCC--->3.3VPA2----SIM800C_RXDPA3----SIM800C_TXD*/
//华为物联网服务器的设备信息#define MQTT_ClientID "62381267575fb713ee164ad2_xl_1_0_0_2022032106"#define MQTT_UserName "62381267575fb713ee164ad2_xl_1"#define MQTT_PassWord "124344feff3e3d96ff6af13cf36af36766619ff1eeee40e99cbae9b7b9739fe4"
//订阅与发布的主题#define SET_TOPIC  "$oc/devices/62381267575fb713ee164ad2_xl_1/sys/messages/down"  //订阅#define POST_TOPIC "$oc/devices/62381267575fb713ee164ad2_xl_1/sys/properties/report"  //发布//设置连接的路由器信息#define CONNECT_WIFI  "Xiaomi_meizi6"   //将要连接的路由器名称 --不要出现中文、空格等特殊字符#define CONNECT_PASS "12170307yu"       //将要连接的路由器密码
#define CONNECT_SERVER_IP "a161a58a78.iot-mqtts.cn-north-4.myhuaweicloud.com"   //服务器IP地址#define CONNECT_SERVER_PORT 1883            //服务器端口
//JTAG模式设置,用于设置JTAG的模式//mode:jtag,swd模式设置;00,全使能;01,使能SWD;10,全关闭;	   #define JTAG_SWD_DISABLE   0X02#define SWD_ENABLE         0X01#define JTAG_SWD_ENABLE    0X00		  void JTAG_Set(u8 mode){	u32 temp;	temp=mode;	temp<<=25;	RCC->APB2ENR|=1<<0;     //开启辅助时钟	   	AFIO->MAPR&=0XF8FFFFFF; //清除MAPR的[26:24]	AFIO->MAPR|=temp;       //设置jtag模式}u16 MQ3_data=0; //酒精浓度float MQ3_data_float=0; //mg/l
char data_buff[100];//酒精超标提示u8 sim800c_buff[100]="Drunk driving reminder";
int main(){    u8 state=0;    u8 key=0;    u32 time_cnt=0;    JTAG_Set(JTAG_SWD_DISABLE); //释放PA15    LED_Init();  //LED灯初始化    BEEP_Init(); //蜂鸣器初始化    KEY_Init();  //按键初始化    USART1_Init(115200); //串口1初始化-打印调试信息    Lcd_Init();    //LCD初始化    Lcd_Clear(0);  //清屏为黑色    LCD_LED_SET;   //通过IO控制背光亮		    AdcInit();     //ADC初始化--检测酒精传感器的值    TIMER2_Init(72,20000);//辅助串口2接收，超时时间为20ms    USART2_Init(115200); //可能的波特率(测试):  57600 、9600、115200    USART3_Init(115200);//串口-WIFI    TIMER3_Init(72,20000); //超时时间20ms        //预热视频    LCD_ShowChineseFont(0,16*3,16,HZ_FONT_16[20],RED,0);    LCD_ShowChineseFont(16,16*3,16,HZ_FONT_16[21],RED,0);    LCD_ShowChineseFont(16*2,16*3,16,HZ_FONT_16[22],RED,0);    LCD_ShowChineseFont(16*3,16*3,16,HZ_FONT_16[23],RED,0);    LCD_ShowChineseFont(16*4,16*3,16,HZ_FONT_16[24],RED,0);    LCD_ShowChineseFont(16*5,16*3,16,HZ_FONT_16[25],RED,0);    LCD_ShowChineseFont(16*6,16*3,16,HZ_FONT_16[26],RED,0);    LCD_ShowChineseFont(16*7,16*3,16,HZ_FONT_16[27],RED,0);    //delay_ms(30000); //初始化时间30秒    delay_ms(5000); //初始化时间5秒    Lcd_Clear(0);  //清屏为黑色       //采集数据的真实数据   LCD_ShowChineseFont(0,16*2,16,HZ_FONT_16[0],RED,0);   LCD_ShowChineseFont(16,16*2,16,HZ_FONT_16[1],RED,0);   LCD_ShowChineseFont(16*2,16*2,16,HZ_FONT_16[2],RED,0);   LCD_ShowChineseFont(16*3,16*2,16,HZ_FONT_16[3],RED,0);      //酒精含量计算结果   LCD_ShowChineseFont(0,16*3,16,HZ_FONT_16[4],RED,0);   LCD_ShowChineseFont(16,16*3,16,HZ_FONT_16[5],RED,0);   LCD_ShowChineseFont(16*2,16*3,16,HZ_FONT_16[6],RED,0);   LCD_ShowChineseFont(16*3,16*3,16,HZ_FONT_16[7],RED,0);
    //酒精超标显示    Gui_DrawFont_GBK16(0,16*4,RED,0,(u8*)"        ");    LCD_ShowChineseFont(0,16*4,16,HZ_FONT_16[16],RED,0);    LCD_ShowChineseFont(16,16*4,16,HZ_FONT_16[17],RED,0);    LCD_ShowChineseFont(16*2,16*4,16,HZ_FONT_16[18],RED,0);    LCD_ShowChineseFont(16*3,16*4,16,HZ_FONT_16[19],RED,0);
    //初始化SIM800C    state=SIM800C_InitCheck();    printf("SIM800C初始化状态:%d\r\n",state);    DelayMs(1000);        //设置文本模式    state=SIM800C_SetNoteTextMode();    printf("设置文本模式状态:%d\r\n",state);    DelayMs(1000);        //          printf("正在初始化WIFI请稍等.\r\n");        for(i=0;i<5;i++)    {        if(ESP8266_Init()==0)        {            esp8266_state=1;            break;        }        else        {            esp8266_state=0;            printf("ESP8266硬件检测错误.\n");          }    }     if(esp8266_state)   {       printf("准备连接服务器....\r\n");        //非加密端口        printf("WIFI:%d\n",ESP8266_STA_TCP_Client_Mode(CONNECT_WIFI,CONNECT_PASS,CONNECT_SERVER_IP,CONNECT_SERVER_PORT,1));                 //2. MQTT协议初始化	        MQTT_Init(); 
        //3. 连接服务器          for(i=0;i<5;i++)        {            if(MQTT_Connect(MQTT_ClientID,MQTT_UserName,MQTT_PassWord)==0)            {                esp8266_state=1;                break;            }            esp8266_state=0;            printf("服务器连接失败,正在重试...\n");            delay_ms(500);        }        printf("服务器连接成功.\n");
        //3. 订阅主题        if(MQTT_SubscribeTopic(SET_TOPIC,0,1))        {           printf("主题订阅失败.\n");        }        else        {           printf("主题订阅成功.\n");        }    }       while(1)   {        key=KEY_Scan();        if(key)        {            printf("key=%d\r\n",key);        }               //控制LED灯        if(key==2)        {            LED2=!LED2;        }                    //手动控制蜂鸣器测试        //手动发送短信测试        if(key==1)        {            BEEP=1;            delay_ms(100);            BEEP=0;
            sprintf((char*)sim800c_buff,"Drunk driving reminder:%d",MQ3_data);            //发送短信            if(SIM800C_SendNote((u8*)"13800138000",sim800c_buff,strlen((char*)sim800c_buff))==0)            printf("短信发送成功\r\n");            else            printf("短信发送失败\r\n");        }                //轮询时间到达        if(time_cnt>300)        {            time_cnt=0;            LED1=!LED1;            //获取空气质量            MQ3_data=GetAdcCHxDATA(1);            printf("采集MQ3数据:%d\r\n",MQ3_data);                       //上报数据            sprintf(data_buff,"{\"services\": [{\"service_id\":\"STM32\",\"properties\":{\"MQ3\":%d}]}",            MQ3_data);                        MQTT_PublishData(POST_TOPIC,data_buff,0);                           //上报数据            sprintf(data_buff,"{\"services\": [{\"service_id\":\"STM32\",\"properties\":{\"MQ3\":%d}]}",            MQ3_data);                        MQTT_PublishData(POST_TOPIC,data_buff,0);                        //LCD屏实时显示酒精浓度                 //采集数据            sprintf(data_buff,"%d",MQ3_data);            Gui_DrawFont_GBK16(72,16*2,RED,0,(u8*)"       ");            Gui_DrawFont_GBK16(72,16*2,RED,0,(u8*)data_buff);                        //酒精含量            //MQ3_data_float=((float)MQ3_data*(5.0/4096))*0.36-1.08;            MQ3_data_float=((float)MQ3_data*(5.0/4096))*0.36;            sprintf(data_buff,"%0.2f mg/L",MQ3_data_float);            printf("计算酒精浓度:%s\r\n",data_buff);            Gui_DrawFont_GBK16(72,16*3,RED,0,(u8*)"        ");            Gui_DrawFont_GBK16(72,16*3,RED,0,(u8*)data_buff);                           //判断酒精浓度是否超标，设置阀值            if(MQ3_data>2000)            {                sprintf((char*)sim800c_buff," :%d",MQ3_data);                //发送短信                if(SIM800C_SendNote((u8*)"18171571217",sim800c_buff,strlen((char*)sim800c_buff))==0)                printf("短信发送成功\r\n");                else                printf("短信发送失败\r\n");            }                        //采集的值越小，表明酒精浓度越高。反之越大。            //根据阀值显示不同的文字提示            if(MQ3_data>2000)            {                 //你已酒驾                Gui_DrawFont_GBK16(0,16*4,RED,0,(u8*)"        ");                LCD_ShowChineseFont(0,16*4,16,HZ_FONT_16[8],RED,0);                LCD_ShowChineseFont(16,16*4,16,HZ_FONT_16[9],RED,0);                LCD_ShowChineseFont(16*2,16*4,16,HZ_FONT_16[10],RED,0);                LCD_ShowChineseFont(16*3,16*4,16,HZ_FONT_16[11],RED,0);            }            //正常稳定范围采集的值是500左右            else            {                //安全范围                Gui_DrawFont_GBK16(0,16*4,RED,0,(u8*)"        ");                LCD_ShowChineseFont(0,16*4,16,HZ_FONT_16[16],RED,0);                LCD_ShowChineseFont(16,16*4,16,HZ_FONT_16[17],RED,0);                LCD_ShowChineseFont(16*2,16*4,16,HZ_FONT_16[18],RED,0);                LCD_ShowChineseFont(16*3,16*4,16,HZ_FONT_16[19],RED,0);            }        }                DelayMs(10);        time_cnt++;	 }}