基于51單片機的智能空調(diào)程序

ID:813640 · 發(fā)表于 2020-12-21 21:41

#include "reg52.h"
#include "lcd.h"
#include "temp.h"
#include "i2c.h"

sbit k3=P3^2;       //設(shè)置溫度上下限
sbit k1=P3^1;       //加
sbit k2=P3^0;       //減

sbit led=P2^4; //報警指示燈

sbit beep=P1^5;       //蜂鳴器報警
sbit relay=P1^1;  //  設(shè)備加熱和繼電器
sbit moto=P1^0; //  電機散熱

char set_temph=0,a=0;//,set_templ=28;  //設(shè)定溫度限默認(rèn)值
u16 temp_val;  //檢測的實際溫度
u8 mode;  //溫度模式

void delay(u16 i)
{
      while(i--);
}

void Temp_DataPros()
{
      char set_temph=a;//,set_templ=28;  //設(shè)定溫度上下限默認(rèn)值
      short temp;
      u8 temp_buf[5];
      temp=Ds18b20ReadTemp();
      temp_val=temp;
      if(temp<0)
      {
            temp=-temp;
            LCD_Dispstring(3+5,0,"-");
      }
      else
      {
            LCD_Dispstring(3+5,0," ");
      }

      temp_buf[0]=temp/100+0x30;
      temp_buf[1]=temp%100/10+0x30;
      temp_buf[2]='.';
      temp_buf[3]=temp%100%10+0x30;
      temp_buf[4]='\0';
      LCD_Dispstring(3+6,0,temp_buf);                //顯示檢測的溫度xx.x

      set_temph=a;
      temp_buf[0]=set_temph/10+0x30;
         temp_buf[1]=set_temph%10+0x30;
      temp_buf[2]='\0';
      LCD_Dispstring(8,1,temp_buf);       //顯示設(shè)定的溫度值xx       */

}

#define  K1_MODE  1
#define  K2_ADD  2
#define  K3_DEC  3

//mode:  0-單次掃描 1-連續(xù)掃描
u8 KEY_Scan(u8 mode)
{
      static u8 key=1;
      if(key&&(k1==0||k2==0||k3==0))
      {
            delay(1000); //消抖
            key=0;
            if(k3==0)
            {
                     return K1_MODE;
            }
            else if(k1==0)
            {
                     return K2_ADD;
            }
            else if(k2==0)
            {
                     return K3_DEC;
            }
      }
      else if(k1==1&&k2==1&&k3==1)
      {
            key=1;
      }
      if(mode)
      {
            key=1;
      }
      return 0;
}

void sound()
{
      u8 i=50;
      while(i--)
      {
            beep=!beep;
            delay(10);
      }
}

void KEY_Pros()
{
      u8 key;
      u8 temph_buf[3];

      key=KEY_Scan(0);

      if(key==K1_MODE) //模式選擇
      {
            mode++;
            LCD_Clear();

            if(mode==1)
            {
                     LCD_Dispstring(4,0,"SET: C");
            }
            else
            {
                     mode=0;
                     LCD_Dispstring(3,0,"Temp:    C");
                     LCD_Dispstring(4,1,"SET:  C");
            }
      }
      if(mode==1)       //溫度上限設(shè)置
      {
            switch(key)
            {
                     case K2_ADD:          //加
                                             set_temph++;
                                             if(set_temph>=80)set_temph=80;
                                             break;
                     case K3_DEC:       //減
                                             set_temph--;
                                             if(set_temph<=0)set_temph=0;
                                             break;

            }
            a=set_temph;
            temph_buf[0]=set_temph/10+0x30;
            temph_buf[1]=set_temph%10+0x30;
            temph_buf[2]='\0';
               LCD_Dispstring(8,0,temph_buf);
            At24c02Write(0,set_temph);
      }
}

void TempData_Compare()
{
      if(temp_val>(set_temph+1)*10)       //實際溫度高于上限值報警  散熱
      {
            led=1;
            moto=1;                //1
            relay=0;
            sound();
      }
      else if(temp_val<(set_temph-1)*10)       //實際溫度低于下限值報警  加熱
      {
            led=1;
            moto=0;       //0
            relay=1;
            sound();
      }
      else                   //實際溫度在下限值和上限值之間取消報警  取消加熱  取消散熱
      {
            moto=1;
            led=0;
            relay=1;
      }
}

void kai_display()
{
      if(At24c02Read(255)!=18)
      {
            At24c02Write(0,set_temph);
            At24c02Write(255,18);
      }
      else
      {
            set_temph=At24c02Read(0);
      }

      LCD_Dispstring(3,0,"Temp:    C");
      LCD_Dispstring(4,1,"SET:  C");
}

void main()
{
      moto=0;
      led=0;
      relay=0;

      LCD_Init();
      kai_display();
      while(1)
      {
            TempData_Compare();
            if(mode==0)
                     Temp_DataPros();
            KEY_Pros();

      }
}