单片机水温控制器设计（仿真图+程序，参考资料） -

#include<reg52.h>
#include<intrins.h>
#include<wendu.h>
#define uchar unsigned char
#define uint unsigned int
sbit key1=P3^0;
sbit key2=P3^1;
sbit key3=P3^2;
sbit key4=P3^6;
sbit led1=P3^7;
sbit led=P3^3;
sbit shenwen=P3^4;
sbit baojing=P3^5;
uchar code tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf,0xff,0xbf,0xc7,0x89};
uchar code tab3[]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10,0x3f,0xff};
uchar yi,er,san,si,san1;
uint shangxian=90,xiaxian=40,flag=0,teding=20,ling=0,bai=100;
void delay(int ma);
void display1(uchar yi,uchar er,uchar san,uchar si);
void display2(uchar yi,uchar er,uchar san1,uchar si);
void keyscan();
void main()
{
float wendu=0;
int wenduzhen=0;
yi=11;er=11;san=11;si=11;
shenwen=1;//关闭继电器
while(1)
{
keyscan();
if(flag==0)//温度测试界面
{
wendu=temget();
if(wendu<xiaxian)//烧水
{
shenwen=0;
}
else if(wendu>=xiaxian)
{
shenwen=1;//烧水功能关闭
}
if(((wendu>=teding)&&(key4==0)))//报警开启
{
baojing=0;
}
else if((wendu<teding))//报警关闭
{
baojing=1;
}
if(((wendu>=teding)))//报警开启
{
led1=1;
}
else if((wendu<teding))//报警关闭
{
led1=0;
}
wenduzhen=wendu*10;
yi=wenduzhen/1000;
er=wenduzhen%1000/100;
san=wenduzhen%100/10;
si=wenduzhen%10;
display1(yi,er,san,si);
}
else if(flag==1)//温度下限设置界面
{
yi=13;er=12;
san1=xiaxian%100/10;
si=xiaxian%10;
display2(yi,er,san1,si);
}
else if(flag==2)//温度上限设置界面
{
yi=14;er=12;
san1=shangxian%100/10;
si=shangxian%10;
display2(yi,er,san1,si);
}
if((wendu>shangxian)||(wendu<xiaxian))//温度超过上限低于下限led亮
{
led=0;
}
else if((wendu>=xiaxian)&&(wendu<=shangxian))
{
led=1;
}
}
}
void keyscan()
{
if(key1==0)//设置界面
{
delay(5);
if(key1==0)
{
flag++;
if(flag>2)flag=0;
}
while(!key1);
}
if(key2==0)//加数值
{
delay(5);
if(key2==0)
{
if(flag==1)
{
xiaxian++;
if(xiaxian>=89)xiaxian=89;
}
else if(flag==2)
{
shangxian++;
if(shangxian>=90)shangxian=90;
}
}
while(!key2);
}
if(key3==0)//减数值
{
delay(5);
if(key3==0)
{
if(flag==1)
{
xiaxian--;
if(xiaxian<0)xiaxian=0;
}
else if(flag==2)
{
shangxian--;
if(shangxian<1)xiaxian=1;
}
}
while(!key3);
}
}
void display1(uchar yi,uchar er,uchar san,uchar si)
{
P2=0X01;
P0=tab[yi];
delay(1);
P2=0X02;
P0=tab[er];
delay(1);
P2=0X04;
P0=tab3[san];
delay(1);
P2=0X08;
P0=tab[si];
delay(1);
}
void display2(uchar yi,uchar er,uchar san1,uchar si)
{
P2=0X01;
P0=tab[yi];
delay(1);
P2=0X02;
P0=tab[er];
delay(1);
P2=0X04;
P0=tab[san1];
delay(1);
P2=0X08;
P0=tab[si];
delay(1);
}
void delay(int ms)
{
int i,a;
for(i=ms;i>0;i--)
for(a=125;a>0;a--);
}

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