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| #include "LCD1602.H"
#include "DS18B20.h"
#include "ADC0832.h"
extern unsigned char ReadAdc0832(unsigned char channel);
extern void DelayMs(unsigned char t);
unsigned int Temp[5];//5路温度值温度放大10倍
int DS18B20DATA[3];//DS18B20读到的16位数据
code unsigned char DecimalNum[16]={0,1,1,2,3,3,4,4,5,6,6,7,8,8,9,9};//DS18B20小数部分对应的数
unsigned char code DuanMa[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
sbit LED=P3^1;
sbit BEEP=P3^2;
sbit LE=P3^0;
sbit Key=P1^0;
unsigned char CurID;
// 显示段码值01234567
unsigned char LCDbuf[16];
void LM35Read(void)
{
Temp[0]=ReadAdc0832(0)\*10;
DelayMs(10);
Temp[1]=ReadAdc0832(1)\*10;
DelayMs(10);
}
void DS18B20Read()
{
gettemp(DS18B20DATA);
Temp[2]=(DS18B20DATA[0]>>4)\*10+DecimalNum[DS18B20DATA[0]&0x0f];
Temp[3]=(DS18B20DATA[1]>>4)\*10+DecimalNum[DS18B20DATA[1]&0x0f];
Temp[4]=(DS18B20DATA[2]>>4)\*10+DecimalNum[DS18B20DATA[2]&0x0f];//环境温度
}
//格式化数据
void ForamtData(int Data,unsigned char \*Str)
{
unsigned char t;
t=Data/10;
if(t>99)
{
\*Str++='1';
\*Str++=(t%100)/10+0x30;
\*Str++=(t%10)+0x30;
\*Str++='.';
\*Str++=Data%10+0x30;
}
if((t>9)&&(t<100))
{
\*Str++=' ';
\*Str++=t/10+0x30;
\*Str++=(t%10)+0x30;
\*Str++='.';
\*Str++=Data%10+0x30;
}
if((t<10)&&(t>0))
{
\*Str++=' ';
\*Str++=' ';
\*Str++=(t%10)+0x30;
\*Str++='.';
\*Str++=Data%10+0x30;
}
if(t==0)
{
\*Str++=' ';
\*Str++=' ';
\*Str++=' ';
\*Str++='.';
\*Str++=Data%10+0x30;
}
\*Str=0;
}
//报警
void Warning(void)
{
unsigned char flag;//,//i;
static unsigned int a,b;
flag=0;
a=Temp[4]+50;
b=Temp[4]-50;
//for(i=0;i<5;i++)
//{
flag=(Temp[CurID]>(a));
flag=(Temp[CurID]<b)||flag;
BEEP=!flag;
LED=!flag;
//}
}
void main(void)
{
LE=1;
P0=DuanMa[CurID+1];
LE=0;
LCD\_Init();
LCD\_Write\_String(0,0,"Envir: C");
LCD\_Write\_String(5,1,"C ");
LED=0;
CurID=3;
while(1)
{
LM35Read();
DS18B20Read();
LE=1;
P0=DuanMa[CurID+1];
LE=0;
ForamtData(Temp[4],LCDbuf);
LCD\_Write\_String(6,0,LCDbuf);
ForamtData(Temp[CurID],LCDbuf);
LCD\_Write\_String(0,1,LCDbuf);
Warning();
if(Key==0)
{
DelayMs(10);
if(Key==0)
CurID=(CurID+1)%4;
while(Key==0);
}
// DelayMs(100);
}
}
|
