51单片机四路DS18B20温度检测系统代码与Proteus仿真图

资料下载地址：51单片机四路DS18B20温度检测系统代码与Proteus仿真图

1、仿真图

2、代码 

void main(void)
{
        uint k;
        uchar number;
   BEEP=1;
   LCD_Initial();
        //init_lcd();
   writestring(0,0,"  Search Sensor  ");
   delayms(800);
   number=FindDevices(Ds18b20Rom);
   writestring(0,0,"Search    sensors");
        writeChar(7,0,number/10+'0');
   writeChar(8,0,number%10+'0');
   
   for(k=0;k<number;k++)
   {
      StartDs18b20(& Ds18b20Rom[k][0]);
   }
   delayms(800);
   writestring(0,0,"A        B      ");
   writestring(0,1,"C        D      ");
        while(1)
        {
      if(Set==0)
      {
         for(k=0;k<number;k++)
         {
            StartDs18b20(& Ds18b20Rom[k][0]);                  
                       
            ReadDs18b20(& Ds18b20Rom[k][0]);         
            switch(k)
            {
               case 0:
                  TP1=TZ;tf1=tflag;
                  writeChar(1,0,tflag);
                  writeChar(2,0,TZ/100+'0');
                  writeChar(3,0,TZ/10%10+'0');       
                  writeChar(4,0,TZ%10+'0');
                  writeChar(5,0,'.');               
                  writeChar(6,0,TD+'0');
                  break;
               case 1:
                  TP2=TZ;tf2=tflag;
                  writeChar(10,0,tflag);
                  writeChar(11,0,TZ/100+'0');
                  writeChar(12,0,TZ/10%10+'0');       
                  writeChar(13,0,TZ%10+'0');
                  writeChar(14,0,'.');               
                  writeChar(15,0,TD+'0');
                  break;
               case 2:
                  TP3=TZ;tf3=tflag;
                  writeChar(1,1,tflag);
                  writeChar(2,1,TZ/100+'0');
                  writeChar(3,1,TZ/10%10+'0');       
                  writeChar(4,1,TZ%10+'0');
                  writeChar(5,1,'.');               
                  writeChar(6,1,TD+'0');
                  break;
               case 3:
                  TP4=TZ;tf4=tflag;
                  writeChar(10,1,tflag);
                  writeChar(11,1,TZ/100+'0');
                  writeChar(12,1,TZ/10%10+'0');       
                  writeChar(13,1,TZ%10+'0');
                  writeChar(14,1,'.');               
                  writeChar(15,1,TD+'0');
                  break;
            }         
         }
      }
      SetFun();
                Alarm();

        }
}