基于51单片机的智能家居家电设备控制系统proteus仿真原理图PCB

功能介绍：0.本系统采用STC89C52作为单片机1.系统实时显示当前的日期/时间，循环显示当前的温度/继电器控制状态2.按键可设定温度，可控制继电器开关，系统设置了三路继电器，可以分别控制三种不同的家用设备3.温度传感器采用的型号是常见的DS18B20，该传感器精度和测温范围都良好4.采用DC002作为电源接口可直接输入5V给整个系统供电

原理图：

PCB ：

主程序：

#include "main.h"

/*******************变量定义*********************/

enum _MODE_DF_ dispMode;

bit modeFlag = AUTO; //模式标记

uchar setIndex = 0;

bit dispFlag = 0;

float temperature;

bit relay1Flag = 0;

bit relay2Flag = 0;

bit relay3Flag = 0;

char dis[16];

/********************************************************

函数名称:void mian()

函数作用:主函数

参数说明:

********************************************************/

void main()

{

    modeFlag = MANUAL;

    Timer0_Init(); //初始化定时器0

    DS1302_Init(); //初始化DS1302

    LCD_Init();   //初始化液晶

    DelayMs(200); //延时有助于稳定

    LCD_DispStr(4, 0, "Welcome!");

DelayS(1);

    LCD_Clear();  //清屏

    while (1) //死循环

    {

        if (dispFlag == 1)

        {

            dispFlag = 0;

            Relay_Ctrl();

            if (dispMode == NORMAL)

            {

                DispNormal();

            }

        }

        KeyProcess();

    }

}

/*------------------------------------------------

                    定时器初始化子程序

------------------------------------------------*/

void Timer0_Init(void)

{

    TMOD |= 0x01; //使用模式1，16位定时器，使用"|"符号可以在使用多个定时器时不受影响

    TH0 = (65536 - 9216) / 256; //重新赋值 10ms

    TL0 = (65536 - 9216) % 256;

    EA = 1;  //总中断打开

    ET0 = 1; //定时器中断打开

    TR0 = 1; //定时器开关打开

}

/*------------------------------------------------

                定时器中断子程序

------------------------------------------------*/

void Timer0_Interrupt(void) interrupt 1

{

    static unsigned int time10ms  = 0;

    TH0 = (65536 - 9216) / 256; //重新赋值 10ms

    TL0 = (65536 - 9216) % 256;

    time10ms++;

    if (time10ms > 50)

    {

        time10ms = 0;

        dispFlag = 1; //显示标志

    }

}

void DispNormal(void)

{

    static int tempBuf = 0;

    static unsigned char cnt = 0;

    DS1302_ReadTime();

    switch (timeBufDec[7])

    {

        case 1: sprintf(dis, "%02d/%02d/%02d   Sun. ", (int)timeBufDec[1], (int)timeBufDec[2], (int)timeBufDec[3]); break;

        case 2: sprintf(dis, "%02d/%02d/%02d   Mon. ", (int)timeBufDec[1], (int)timeBufDec[2], (int)timeBufDec[3]); break;

        case 3: sprintf(dis, "%02d/%02d/%02d   Tue. ", (int)timeBufDec[1], (int)timeBufDec[2], (int)timeBufDec[3]); break;

        case 4: sprintf(dis, "%02d/%02d/%02d   Wed. ", (int)timeBufDec[1], (int)timeBufDec[2], (int)timeBufDec[3]); break;

        case 5: sprintf(dis, "%02d/%02d/%02d  Thur. ", (int)timeBufDec[1], (int)timeBufDec[2], (int)timeBufDec[3]); break;

        case 6: sprintf(dis, "%02d/%02d/%02d   Fri. ", (int)timeBufDec[1], (int)timeBufDec[2], (int)timeBufDec[3]); break;

        case 7: sprintf(dis, "%02d/%02d/%02d   Sat. ", (int)timeBufDec[1], (int)timeBufDec[2], (int)timeBufDec[3]); break;

        default: sprintf(dis, "%02d/%02d/%02d   Sun. ", (int)timeBufDec[1], (int)timeBufDec[2], (int)timeBufDec[3]); break;

    }

    LCD_DispStr(0, 0, dis);

    while(!DS18B20_Start());

    DS18B20_GetTemp(&tempBuf);

    temperature = (float)tempBuf * 0.0625;

    sprintf(dis, "%02d:%02d:%02d ", (int)timeBufDec[4], (int)timeBufDec[5], (int)timeBufDec[6]);

    LCD_DispStr(0, 1, dis);

    cnt++;

    if (cnt < 5) //定时显示温度

    {

        sprintf(dis, "%5.1f", temperature);

        LCD_DispStr(9, 1, dis);

        LCD_DispOneChar(14, 1, 0xdf); //℃

        LCD_DispOneChar(15, 1, 'C');

    }

    else if (cnt < 10) //定时显示继电器状态

    {

        if (relay1Flag == 1)

        {

            LCD_DispStr(9, 1, " 1o");

        }

        else

        {

            LCD_DispStr(9, 1, " 1c");

        }

        if (relay2Flag == 1)

        {

            LCD_DispStr(12, 1, "2o");

        }

        else

        {

            LCD_DispStr(12, 1, "2c");

        }

        if (relay3Flag == 1)

        {

            LCD_DispStr(14, 1, "3o");

        }

        else

        {

            LCD_DispStr(14, 1, "3c");

        }

    }

    else

    {

        cnt = 0;

    }

}

void Relay_Ctrl(void)

{

    if (relay1Flag == 1)

    {

        RELAY_1 = ON;

    }

    else

    {

        RELAY_1 = OFF;

    }

    if (relay2Flag == 1)

    {

        RELAY_2 = ON;

    }

    else

    {

        RELAY_2 = OFF;

    }

    if (relay3Flag == 1)

    {

        RELAY_3 = ON;

    }

    else

    {

        RELAY_3 = OFF;

    }

}

void DispSetRealTime(unsigned char setIndex)

{

    sprintf(dis, "%02d/%02d/%02d", (int)timeBufDec[1], (int)timeBufDec[2], (int)timeBufDec[3]);

    LCD_DispStr(0, 0, dis);

    switch (timeBufDec[7])

    {

        case 1: LCD_DispStr(10, 0, " Sun."); break;

        case 2: LCD_DispStr(10, 0, " Mon."); break;

        case 3: LCD_DispStr(10, 0, " Tue."); break;

        case 4: LCD_DispStr(10, 0, " Wed."); break;

        case 5: LCD_DispStr(10, 0, "Thur."); break;

        case 6: LCD_DispStr(10, 0, " Fri."); break;

        case 7: LCD_DispStr(10, 0, " Sat."); break;

        default: LCD_DispStr(10, 0, " Sun."); break;

    }

    sprintf(dis, "    %02d:%02d:%02d   ", (int)timeBufDec[4], (int)timeBufDec[5], (int)timeBufDec[6]);

    LCD_DispStr(0, 1, dis);

    switch (setIndex)

    {

        case 1: LCD_SetCursor(1, 0, 1); break;

        case 2: LCD_SetCursor(4, 0, 1); break;

        case 3: LCD_SetCursor(7, 0, 1); break;

        case 4: LCD_SetCursor(14, 0, 1); break;

        case 5: LCD_SetCursor(5, 1, 1); break;

        case 6: LCD_SetCursor(8, 1, 1); break;

        case 7: LCD_SetCursor(11, 1, 1); break;

        default:break;

    }

}

仿真演示视频：

https://www.bilibili.com/video/BV1D5411X7jE/

实物演示视频：

https://www.bilibili.com/video/BV1y841147bY/