Task
The hardware design part mainly includes hardware selection and configuration, mq-2 smoke sensor, temperature and humidity sensor dht11, lcd display screen, infrared pyrosensor, sound alarm.
Main requirements: dht11, infrared sensor, understand its working principle
(2) master the basic library functions of STM32/51 single-chip microcomputer, learn the basic C programming language
(3) design animal body temperature recognition algorithm, can accurately identify the heat source point
(4) can pass The liquid crystal display shows the measured temperature and humidity
(5) the required value can be set by pressing the button
(6) the operation of the system can be controlled by the single-chip microcomputer, and the alarm will be triggered when the smoke sensor and infrared sensor are triggered
(7) design hardware drawings and corresponding Source program
Core technical indicators:
(1) When the temperature does not reach the set value, the motor works
(2) When the humidity does not reach the set value, the motor works
(3) When an animal breaks into another area, the alarm buzzer is triggered
(4 ) When a fire is sounding, the smoke alarm will alarm and trigger the buzzer. The
purpose of this research is to develop a temperature and humidity control system that can display temperature and humidity values in real time and accurately, can alarm animals in the wrong area, and fire alarm indoor zoo. . By collecting temperature and humidity values, the difference between the standard value and the current value can be accurately judged, and the alarm can be reported in time, and a corresponding plan can be adopted through the outside world. The temperature and humidity can be adjusted to the desired state, which can improve the convenience of the system and save energy on the basis of the above-mentioned purposes.
in kind
schematic diagram
source program
Main function main.c
/*******************************************************************************
* 文件名称：STM32温湿度控制体温检测烟雾报警系统
* 实验目的：1.
* 2.
* 程序说明：完整程序Q:2772272579;@: [email protected]
* 日期版本：51，STM32功能可定制。
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @说明 主函数
* @参数 None
* @返回值 None
*/
int main(void)
{
Proc_Init();
LED_Init();
OLED_Init();
LCD_Display();
ADC1_Init();
if(DHT11_Init() == 1)
{
OLED_Showx8_y16(0,3,(unsigned char*)" DHT11 ERROR! ");
}
else
{
OLED_Showx8_y16(0,3,(unsigned char*)" DHT11 SUCCESS! ");
}
BEEP_Init();
BEEP_Control(ON);
LED_Control(ON);
Delay_ms(1000);
BEEP_Control(OFF);
LED_Control(OFF);
KEY_Init();
RELAY_Init();
SMBus_Init();
TIM4_Init();
while(1){
Key_Proc();
if(TIM4_FlagStatus.Flag_200MS == SET){
TIM4_FlagStatus.Flag_200MS = RESET;
LED_Control(REVERSE);
Proc_200Ms();
}
Check_Sensior();
LCD_Display();
}
}
processing logic
#include "proc.h"
LCD_ENUM LCD_Menu = LCD_DEFAULT,LCD_Menu_Last = LCD_DEFAULT;
LCD_DEF_MENU LCD_DefShow;
LCD_SET_MENU LCD_SetShow;
#define LCD_BUFFMAX 21
char LCD_Buff[LCD_BUFFMAX];
void LCD_Display(void)
{
if(LCD_Menu_Last != LCD_Menu)
{
LCD_Menu_Last = LCD_Menu;
OLED_CLS();//清屏
}
if(LCD_Menu == LCD_DEFAULT)
{
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 检测界面 ");
OLED_Showx8_y16(0,0,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 温度: %d℃ ",LCD_DefShow.DHT11_Tempe);
OLED_Showx8_y16(0,1,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 湿度: %d%%RH ",LCD_DefShow.DHT11_Humi); // RH就是相对湿度,(Relative Humidity) %转义->%
OLED_Showx8_y16(0,2,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 体温: %3.1f℃ ",LCD_DefShow.GY906_Temp);
OLED_Showx8_y16(0,3,(unsigned char*)LCD_Buff);
}
else if(LCD_Menu == LCD_Tset02)
{
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 检测界面 ");
OLED_Showx8_y16(0,0,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 烟雾: %dPPM ",LCD_DefShow.Yanwu);
OLED_Showx8_y16(0,1,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 火焰: %.2fV ",LCD_DefShow.Adc_Huoyan); //
OLED_Showx8_y16(0,2,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 体温: %3.1f℃ ",LCD_DefShow.GY906_Temp);
OLED_Showx8_y16(0,3,(unsigned char*)LCD_Buff);
}
else if(LCD_Menu == LCD_SETTING)
{
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 设置界面 ");
OLED_Showx8_y16(0,0,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)"温度L: %d℃ ",LCD_SetShow.DHT11_Tempe_Set_L);
OLED_Showx8_y16(1,1,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)"温度H: %d℃ ",LCD_SetShow.DHT11_Tempe_Set_H);
OLED_Showx8_y16(1,2,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)"湿度L: %d%%RH ",LCD_SetShow.DHT11_Humi_Set_L);
OLED_Showx8_y16(1,3,(unsigned char*)LCD_Buff);
if(LCD_SetShow.Now_SetLine > 1)
OLED_Showx8_y16(0,LCD_SetShow.Now_SetLine-1,(unsigned char*)" ");//LCD_SetShow.Now_SetLine
OLED_Showx8_y16(0,LCD_SetShow.Now_SetLine,(unsigned char*)"*");//LCD_SetShow.Now_SetLine
}
else if(LCD_Menu == LCD_SETTING02)
{
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 设置界面 ");
OLED_Showx8_y16(0,0,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)"湿度H: %d%%RH ",LCD_SetShow.DHT11_Humi_Set_H);
OLED_Showx8_y16(1,1,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)"体温L: %3.1f℃ ",LCD_SetShow.GY906_Temp_Set_L);
OLED_Showx8_y16(1,2,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)"体温H: %3.1f℃ ",LCD_SetShow.GY906_Temp_Set_H);
OLED_Showx8_y16(1,3,(unsigned char*)LCD_Buff);
if(LCD_SetShow.Now_SetLine > 1)
OLED_Showx8_y16(0,LCD_SetShow.Now_SetLine-1,(unsigned char*)" ");//LCD_SetShow.Now_SetLine
OLED_Showx8_y16(0,LCD_SetShow.Now_SetLine,(unsigned char*)"*");//LCD_SetShow.Now_SetLine
}
else if(LCD_Menu == LCD_SETTING03)
{
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)" 设置界面 ");
OLED_Showx8_y16(0,0,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)"烟雾: %dPPM ",LCD_SetShow.Yanwu_Set);
OLED_Showx8_y16(1,2,(unsigned char*)LCD_Buff);
memset(LCD_Buff,'0',LCD_BUFFMAX);
sprintf(LCD_Buff,(char *)"火焰: %.2fV ",LCD_SetShow.Huoyan_Set); //
OLED_Showx8_y16(1,3,(unsigned char*)LCD_Buff);
if(LCD_SetShow.Now_SetLine > 2)
OLED_Showx8_y16(0,LCD_SetShow.Now_SetLine-1,(unsigned char*)" ");//LCD_SetShow.Now_SetLine
OLED_Showx8_y16(0,LCD_SetShow.Now_SetLine,(unsigned char*)"*");//LCD_SetShow.Now_SetLine
}
}
STRUCT_NVICPriority NVICPriority_Structure;
void Proc_Init(void)
{
NVICPriority_Structure.Tim4 = 4;
LCD_SetShow.DHT11_Tempe_Set_L=15;
LCD_SetShow.DHT11_Tempe_Set_H=23;
LCD_SetShow.DHT11_Humi_Set_L = 60;
LCD_SetShow.DHT11_Humi_Set_H = 80;
LCD_SetShow.GY906_Temp_Set_L = 20;
LCD_SetShow.GY906_Temp_Set_H = 30;
LCD_SetShow.Huoyan_Set = 1.0;
LCD_SetShow.Yanwu_Set = 200;
}
extern STRUCT_DHT11 DHT11_Structure;
extern __IO uint16_t ADCConvertedValue[ADC_BUFFMAX];
void Proc_200Ms(void)
{
if(DHT11_Read_Data() != 0)
{
LCD_DefShow.DHT11_Humi = (u8)DHT11_Structure.Humi;
LCD_DefShow.DHT11_Tempe = (u8)DHT11_Structure.Tempe;
}
LCD_DefShow.GY906_Temp=SMBus_ReadTemp();
LCD_DefShow.Adc_Yanwu = (float)(ADCConvertedValue[0] * 3.3 / 0xfff);
LCD_DefShow.Adc_Yanwu-=0.138; //自减初值
if(LCD_DefShow.Adc_Yanwu <0)
LCD_DefShow.Adc_Yanwu=0;
LCD_DefShow.Yanwu = (u16)((LCD_DefShow.Adc_Yanwu*100) * 36.36); //0.14 - 0.7 ；0-2000PPM 均分比列
LCD_DefShow.Adc_Huoyan = (float)(ADCConvertedValue[1] * 3.3 / 0xfff);
}
void RELAY_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* GPIOx clock enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7; //LED_RED
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_SetBits(GPIOB,GPIO_Pin_6);
GPIO_SetBits(GPIOB,GPIO_Pin_7);
}
void RELAY_Control(u8 choice,ENUM_STATE NewState)
{
if(NewState == ON)
{
if(choice == 1)
GPIO_ResetBits(GPIOB,GPIO_Pin_6);
else
GPIO_ResetBits(GPIOB,GPIO_Pin_7);
}
else if(NewState == OFF)
{
if(choice == 1)
GPIO_SetBits(GPIOB,GPIO_Pin_6);
else
GPIO_SetBits(GPIOB,GPIO_Pin_7);
}
}
void BEEP_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* GPIOx clock enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //LED_RED
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_15; //BEEP
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_SetBits(GPIOA,GPIO_Pin_12);
GPIO_SetBits(GPIOB,GPIO_Pin_9);
}
uint8_t BEEP_BUFF = 0x01;
void BEEP_Control(ENUM_STATE NewState)
{
if(NewState == ON)
{
BEEP_BUFF = 0x00;
GPIO_ResetBits(GPIOA,GPIO_Pin_12);
GPIO_ResetBits(GPIOB,GPIO_Pin_9);
}
else if(NewState == OFF)
{
BEEP_BUFF = 0x01;
GPIO_SetBits(GPIOA,GPIO_Pin_12);
GPIO_SetBits(GPIOB,GPIO_Pin_9);
}
else //reverse
{
if(BEEP_BUFF == 0x01) // currunt bit status is 1?--off
{
BEEP_BUFF = 0x00;
GPIO_ResetBits(GPIOA,GPIO_Pin_12);
GPIO_ResetBits(GPIOB,GPIO_Pin_9);
}
else
{
BEEP_BUFF = 0x01;
GPIO_SetBits(GPIOA,GPIO_Pin_12);
GPIO_SetBits(GPIOB,GPIO_Pin_9);
}
}
}
extern STRUCT_KEY KEY_Structure;
void Key_Proc(void)
{
if(KEY_Structure.TouchKey != 0xff)
{
switch(KEY_Structure.TouchKey)
{
case 1:
if(KEY_Structure.IS_ShortTouch == TRUE){
if(LCD_Menu == LCD_DEFAULT)
{
LCD_Menu = LCD_Tset02;
}
else
{
LCD_Menu = LCD_DEFAULT;
LCD_SetShow.Now_SetLine = 0;
}
}
break;
case 2:
if(KEY_Structure.IS_ShortTouch == TRUE){
if(LCD_Menu != LCD_SETTING && LCD_Menu != LCD_SETTING02 && LCD_Menu != LCD_SETTING03)
LCD_Menu = LCD_SETTING;
if(LCD_Menu == LCD_SETTING)
{
LCD_SetShow.Now_SetLine++; //u8 LCD_SetShow.Now_SetLine=0;
if(LCD_SetShow.Now_SetLine > 3)
{
LCD_SetShow.Now_SetLine = 0;
LCD_Menu = LCD_SETTING02;
}
}
if(LCD_Menu==LCD_SETTING02)
{
LCD_SetShow.Now_SetLine++; //u8 LCD_SetShow.Now_SetLine=0;
if(LCD_SetShow.Now_SetLine > 3)
{
LCD_SetShow.Now_SetLine = 1;
LCD_Menu = LCD_SETTING03;
}
}
if(LCD_Menu==LCD_SETTING03)
{
LCD_SetShow.Now_SetLine++; //u8 LCD_SetShow.Now_SetLine=0;
if(LCD_SetShow.Now_SetLine > 3)
{
LCD_SetShow.Now_SetLine = 0;
LCD_Menu = LCD_DEFAULT;
}
}
}
break;
case 3:
if(LCD_Menu == LCD_SETTING)
{
switch(LCD_SetShow.Now_SetLine)
{
case 1: //DHT11温度L
LCD_SetShow.DHT11_Tempe_Set_L++;
if(LCD_SetShow.DHT11_Tempe_Set_L>=LCD_SetShow.DHT11_Humi_Set_H)
LCD_SetShow.DHT11_Tempe_Set_L=LCD_SetShow.DHT11_Humi_Set_H-1;
break;
case 2: //DHT11温度H
LCD_SetShow.DHT11_Tempe_Set_H++;
if(LCD_SetShow.DHT11_Tempe_Set_H>99)
LCD_SetShow.DHT11_Tempe_Set_H=99;
break;
case 3: //DHT11湿度L
LCD_SetShow.DHT11_Humi_Set_L++;
if(LCD_SetShow.DHT11_Humi_Set_L>=LCD_SetShow.DHT11_Humi_Set_H)
LCD_SetShow.DHT11_Humi_Set_L=LCD_SetShow.DHT11_Humi_Set_L-1;
break;
default:break;
}
}
if(LCD_Menu == LCD_SETTING02)
{
switch(LCD_SetShow.Now_SetLine)
{
case 1: //DHT11湿度H
LCD_SetShow.DHT11_Humi_Set_H++;
if(LCD_SetShow.DHT11_Humi_Set_H>99)
LCD_SetShow.DHT11_Humi_Set_H=99;
break;
case 2: //GY906 L
LCD_SetShow.GY906_Temp_Set_L+=0.1;
if(LCD_SetShow.GY906_Temp_Set_L>=LCD_SetShow.GY906_Temp_Set_H)
LCD_SetShow.GY906_Temp_Set_L=LCD_SetShow.GY906_Temp_Set_H-0.1;
break;
case 3: //GY906 H
LCD_SetShow.GY906_Temp_Set_H+=0.1;
if(LCD_SetShow.GY906_Temp_Set_H>99.9)
LCD_SetShow.GY906_Temp_Set_H=99.9;
break;
default:break;
}
}
if(LCD_Menu == LCD_SETTING03)
{
switch(LCD_SetShow.Now_SetLine)
{
case 2: //烟雾
LCD_SetShow.Yanwu_Set++;
if(LCD_SetShow.Yanwu_Set>2000)
LCD_SetShow.Yanwu_Set=2000;
break;
case 3: //火焰
LCD_SetShow.Huoyan_Set+=0.1;
if(LCD_SetShow.Huoyan_Set>3.3)
LCD_SetShow.Huoyan_Set=3.3;
break;
default:break;
}
}
break;
case 4:
if(LCD_Menu == LCD_SETTING)
{
switch(LCD_SetShow.Now_SetLine)
{
case 1: //DHT11温度L
LCD_SetShow.DHT11_Tempe_Set_L--;
if(LCD_SetShow.DHT11_Tempe_Set_L<1)
LCD_SetShow.DHT11_Tempe_Set_L=1;
break;
case 2: //DHT11温度H
LCD_SetShow.DHT11_Tempe_Set_H--;
if(LCD_SetShow.DHT11_Tempe_Set_H<=LCD_SetShow.DHT11_Tempe_Set_L)
LCD_SetShow.DHT11_Tempe_Set_H=LCD_SetShow.DHT11_Tempe_Set_L+1;
break;
case 3: //DHT11湿度L
LCD_SetShow.DHT11_Humi_Set_L--;
if(LCD_SetShow.DHT11_Humi_Set_L<1)
LCD_SetShow.DHT11_Humi_Set_L=1;
break;
default:break;
}
}
if(LCD_Menu == LCD_SETTING02)
{
switch(LCD_SetShow.Now_SetLine)
{
case 1: //DHT11湿度H
LCD_SetShow.DHT11_Humi_Set_H--;
if(LCD_SetShow.DHT11_Humi_Set_H<=LCD_SetShow.DHT11_Humi_Set_L)
LCD_SetShow.DHT11_Humi_Set_H=LCD_SetShow.DHT11_Humi_Set_L-1;
break;
case 2: //GY906 L
LCD_SetShow.GY906_Temp_Set_L-=0.1;
if(LCD_SetShow.GY906_Temp_Set_L<=0.1)
LCD_SetShow.GY906_Temp_Set_L=0.1;
break;
case 3: //GY906 H
LCD_SetShow.GY906_Temp_Set_H-=0.1;
if(LCD_SetShow.GY906_Temp_Set_H<=LCD_SetShow.GY906_Temp_Set_L)
LCD_SetShow.GY906_Temp_Set_H=LCD_SetShow.GY906_Temp_Set_L-0.1;
break;
default:break;
}
}
if(LCD_Menu == LCD_SETTING03)
{
switch(LCD_SetShow.Now_SetLine)
{
case 2: //烟雾
LCD_SetShow.Yanwu_Set--;
if(LCD_SetShow.Yanwu_Set<1)
LCD_SetShow.Yanwu_Set=1;
break;
case 3: //火焰
LCD_SetShow.Huoyan_Set-=0.1;
if(LCD_SetShow.Huoyan_Set<0.1)
LCD_SetShow.Huoyan_Set=0.1;
break;
default:break;
}
}
break;
default:break;
}
KEY_Structure.TouchKey = 0xff;
KEY_Structure.IS_ShortTouch = FALSE;
}
}
u8 Flag_Gy906=0,Flag_Yanwu=0,Flag_Huoyan=0;
void Check_Sensior(void)
{
if(LCD_DefShow.DHT11_Tempe <LCD_SetShow.DHT11_Tempe_Set_L || LCD_DefShow.DHT11_Tempe >LCD_SetShow.DHT11_Tempe_Set_H)
{
RELAY_Control(1,ON);
}
else
{
RELAY_Control(1,OFF);
}
if(LCD_DefShow.DHT11_Humi <LCD_SetShow.DHT11_Humi_Set_L || LCD_DefShow.DHT11_Humi >LCD_SetShow.DHT11_Humi_Set_H)
{
RELAY_Control(2,ON);
}
else
{
RELAY_Control(2,OFF);
}
if(LCD_DefShow.GY906_Temp < LCD_SetShow.GY906_Temp_Set_L || LCD_DefShow.GY906_Temp > LCD_SetShow.GY906_Temp_Set_H)
{
Flag_Gy906 = 1;
}
else
{
Flag_Gy906 = 0;
}
if(LCD_DefShow.Yanwu >LCD_SetShow.Yanwu_Set)
{
Flag_Yanwu = 1;
}
else
{
Flag_Yanwu = 0;
}
if(LCD_DefShow.Adc_Huoyan <LCD_SetShow.Huoyan_Set)
{
Flag_Huoyan = 1;
}
else
{
Flag_Huoyan = 0;
}
if(Flag_Gy906 | Flag_Yanwu | Flag_Huoyan)
{
BEEP_Control(ON);
}
else
{
BEEP_Control(OFF);
}
}