[嵌入式]基于51单片机的智能窗户烟雾浓度雨滴检测无线wifi控制系统proteus仿真原理图PCB

功能介绍：
0.本系统采用STC89C52作为单片机
1.LCD1602实时显示当前环境温湿度，烟雾浓度，室外是否下雨
2.按键可设定烟雾浓度，环境温湿度阈值，雨滴检测阈值
3.当环境适宜时，打开窗户，当外面下雨时，关闭窗户
4.当室内烟雾浓度超过设定阈值时，无论如何都将打开窗户
5.可手动控制窗户开关状态
6.可通过WIFI控制窗户开关状态
*1O# 表示打开窗户
*1C# 表示关闭窗户
WIFI控制窗户后，进入手动模式
*1A# 表示可恢复自动模式
*1M# 表示可进入手动模式

原理图：

PCB：

主程序：

#include <reg52.h>
#include <intrins.h>
#include <stdio.h>
#include "delay.h"
#include "dht11.h"
#include "lcd1602.h"
#include "tlc0832.h"
#include "28BYJ48.h"

sbit KEY_SWITCH = P3^5;                   //确认按键
sbit KEY_SET = P3^3;                      //设置按键
sbit KEY_ADD = P3^4;                      //加按键
sbit KEY_SUB = P3^6;                      //减按键

#define ON 0
#define OFF 1

enum {NORMAL=1, SET_TEMP, SET_HM, SET_SMOG} DispMode;

unsigned char dis0[18];       //数组暂存
unsigned char R_buf[4];

bit refreshFlag = 0;

bit setFlag = 0; //设置标志
bit setIndex = 0;
bit autoFlag = 1;
bit openFlag = 0;
bit rainFlag = 0;
int temp = 0;
int humidity = 0;
int smogConc = 0;
int minTemp = 20;
int maxTemp = 35;
int minEvHm = 35;
int maxEvHm = 85;
int maxSmogConc = 30;
int water = 0;
unsigned char motorDir = 0;


void Timer0_Init(); //函数声明
void UART_Init();
void UART_SendByte(unsigned char dat);
void UART_SendStr(unsigned char *s, unsigned char length);
void DispNormal(void);
void DispSetTemp(setFlag, setIndex);
void DispSetHm(setFlag, setIndex);
void DispSetSmog(setFlag, setIndex);
void WindowCtrl(void);
void MotorCtrl(void);
void KeyScan(void);

void main()
{

	Timer0_Init(); //定时器0初始化
    LCD_Init(); //LCD初始化
    LCD_Clear();

    LCD_DispStr(4, 0, "Welcome!");
	DelayS(1); //等待WIFI启动
    UART_Init(); //串口初始化
    
    UART_SendStr("AT+CIPMUX=1\r\n", 13); //打开多连接
	DelayS(1);
	UART_SendStr("AT+CIPSERVER=1,8080\r\n", 21); //建立服务 端口号为8080
	DelayS(1);
    DispMode = NORMAL;
	while (1) //主循环
	{
		if (refreshFlag == 1) //刷新数据标志
		{
            static unsigned char cnt = 0;
            
			refreshFlag = 0;

            //检测数据
            TR0 = 0; //关总中断
            if (cnt % 5 == 0)
            {
                DHT11_ReadData(); //检测温湿度
                temp = U8T_data_H;
                humidity = U8RH_data_H;
            }

            smogConc = 100 * ReadADC(AIN1_GND) / 255; //检测烟雾浓度
            
            if (smogConc < 0)
            {
                smogConc = 0;
            }
            else if (smogConc > 99)
            {
                smogConc = 99;
            }
            
            water = 100 - 100 * ReadADC(AIN0_GND) / 255; //检测雨滴
            
            if (water >= 10)
            {
                rainFlag = 1;
            }
            else
            {
                rainFlag = 0;
            }

            WindowCtrl();

            if (DispMode == NORMAL)
            {
                DispNormal();
            }
            else if (DispMode == SET_TEMP)
            {
                DispSetTemp(setFlag, setIndex);
            }
            else if (DispMode == SET_HM)
            {
                DispSetHm(setFlag, setIndex);
            }
            else if (DispMode == SET_SMOG)
            {
                DispSetSmog(setFlag, setIndex);
            }
            
            TR0 = 1; //开总中断

            if (cnt >= 10) // 5秒发送一次
            {
                cnt = 0;
                // WIFI发送数据
                UART_SendStr("AT+CIPSEND=0,35\r\n", 17); //发送AT命令
                DelayMs(100);
                sprintf(dis0, "Temp:%02d'C Hm:%02d%% \r\n", temp, humidity);
                UART_SendStr(dis0, 19); //发送内容
                if (autoFlag == 1)      //自动模式
                {
                    sprintf(dis0, "Smog:%3d%% A ", smogConc);
                }
                else
                {
                    sprintf(dis0, "Smog:%3d%% M ", smogConc);
                }

                UART_SendStr(dis0, 12); //发送内容

                if (openFlag == 1)
                {
                    UART_SendStr("O ", 2); //发送内容
                }
                else
                {
                    UART_SendStr("C ", 2); //发送内容
                }
                
                if (rainFlag == 1)
                {
                    UART_SendStr("YY\r\n", 3); //发送内容
                }
                else
                {
                    UART_SendStr("WY\r\n", 3); //发送内容
                }
            }
            else
            {
                cnt++;
            }
        }
        EA = 0;
        MotorCtrl();
        EA = 1;
        KeyScan();
	}
}

void WindowCtrl(void)
{
    static bit Flag1 = 0;
    static bit Flag2 = 0;
    static bit Flag3 = 0;
    static bit openFlagBuf = 0;

    if (autoFlag == 1)
    {
        if (smogConc >= maxSmogConc) //烟雾浓度过高
        {
            Flag1 = 1; //打开窗户标志1
        }
        else
        {
            Flag1 = 0; //关闭窗户标志1
        }

        if (rainFlag == 0) //未下雨
        {
            Flag2 = 1; //打开窗户标志2
        }
        else
        {
            Flag2 = 0; //关闭窗户标志2
        }

        if ((temp >= minTemp && temp <= maxTemp) && (humidity >= minEvHm && humidity <= maxEvHm)) //环境适宜时
        {
            Flag3 = 1; //打开窗户标志3
        }
        else
        {
            Flag3 = 0; //关闭窗户标志3
        }

        if (Flag1) //烟雾浓度超高，优先级最高
        {
            openFlag = 1;
        }
        else
        {
            if (Flag2) //确认没有下雨，优先级次之
            {
                if (Flag3) //确认环境适宜，优先级最低
                {
                    openFlag = 1;
                }
                else
                {
                    openFlag = 0;
                }
            }
            else
            {
                openFlag = 0;
            }
        }
    }


    if (~openFlagBuf && openFlag) //开窗
    {
        motorDir = 1; //正转标志
    }
    else if (openFlagBuf && ~openFlag) //关窗
    {
        motorDir = 2; //反转标志
    }

    openFlagBuf = openFlag;
}

void MotorCtrl(void)
{
    static int motorCnt = 0;

    if (motorDir == 1)
    {
        motorCnt++;
        motor_z();
        if (motorCnt == 64)
        {
            motorDir = 0;
        }
    }
    else if (motorDir == 2)
    {
        motorCnt--;
        motor_f();
        if (motorCnt == 0)
        {
            motorDir = 0;
        }
    }
}

void DispNormal(void)
{
    //LCD显示数据
    sprintf(dis0, "Temp:%2d", temp);
    LCD_DispStr(0, 0, dis0);
    LCD_DispOneChar(7, 0, 0xdf); //摄氏度的点
    sprintf(dis0, "C Hm:%2d%%", humidity);
    LCD_DispStr(8, 0, dis0);
    if (autoFlag == 1)
    {
        sprintf(dis0, "Smog:%3d%% A", smogConc); //自动模式
    }
    else
    {
        sprintf(dis0, "Smog:%3d%% M", smogConc); //WIFI控制，手动模式显示
    }
    LCD_DispStr(0, 1, dis0);

    if (openFlag == 1) //窗户打开
    {
        LCD_DispStr(12, 1, "O ");
    }
    else //窗户关闭
    {
        LCD_DispStr(12, 1, "C ");
    }

    if (rainFlag == 1)
    {
        LCD_DispStr(14, 1, "YY"); //有雨
    }
    else
    {
        LCD_DispStr(14, 1, "WY"); //无雨
    }

}

仿真演示视频：
https://www.bilibili.com/video/BV1aY4y1t7oM/

实物演示视频：
https://www.bilibili.com/video/BV1Ya41177oE/