智能饮水机51单片机程序

#include reg52.H 51头文件
#include intrins.H
#include math.H 数学函数
#define uchar unsigned char
#define uint unsigned int
sbit rw = P3^6; 读写选择端
sbit RS = P3^5; 数据、命令选择端sbit bin =P3^7; 蜂鸣器
sbit LCDEN = P3^4; 使能
sbit k1=P3^0; 加
sbit k2=P3^1; 减
sbit k3=P3^2; 设置
sbit jd=P3^3; 继电器
sbit red=P1^0; 红外避障unsigned int temp,flag,flag1,biaozh; uchar aa,bb;
void delayUs()
{
_nop_();
}
void delayMs(uint a)
{
uint i, j;
for(i = a; i 0; i--)
for(j = 100; j 0; j--);
}
void writeComm(uchar comm)
{
RS = 0;
P0 = comm;
LCDEN = 1;
delayUs();
LCDEN = 0;
delayMs(1);
}
写数据RS=1, RW=0;
void writeData(uchar dat)
{
RS = 1;
P0 = dat;
LCDEN = 1;
delayUs();
LCDEN = 0;
delayMs(1);
}
void init()
{
rw = 0;
writeComm(0x38);
writeComm(0x0c);
writeComm(0x06);
writeComm(0x01);
}
void writeString(uchar str, uchar length) {
uchar i;
for(i = 0; i length; i++)
{
writeData(str[i]);
}
}
DS18B20
sbit ds = P2^2;
void dsInit()
{
unsigned int i;
ds = 0;
i = 100;
while(i0) i--;
ds = 1;
i = 4;
while(i0) i--;
}
void dsWait()
{
unsigned int i;
while(ds);
while(~ds);
i = 4;
while(i 0) i--;
}
bit readBit()
{
unsigned int i;
bit b;
ds = 0;
i++;
ds = 1;
i++; i++;
b = ds;
i = 8;
while(i0) i--;
return b;
}
unsigned char readByte()
{
unsigned int i;
unsigned char j, dat;
dat = 0;
for(i=0; i8; i++)
{
j = readBit();
dat = (j 7) (dat 1);
}
return dat;
}
void writeByte(unsigned char dat) {
unsigned int i;
unsigned char j;
bit b;
for(j = 0; j 8; j++)
{
b = dat & 0x01;
dat = 1;
if(b)
{
ds = 0;
i++;
i++;
ds = 1;
i = 8;
while(i0) i--;
}
else
{
ds = 0;
i = 8;
while(i0) i--;
ds = 1;
i++; i++;
}
}
}
void sendChangeCmd() {
dsInit();
dsWait();
delayMs(1);
writeByte(0xcc);
writeByte(0x44);
}
void sendReadCmd()
{
dsInit();
dsWait();
delayMs(1);
writeByte(0xcc);
writeByte(0xbe);
}
int getTmpValue()读取温度{
unsigned int tmpvalue;
int value;
float t;
unsigned char low, high;
sendReadCmd();
low = readByte();
high = readByte();
tmpvalue = high;
tmpvalue = 8;
tmpvalue = low;
value = tmpvalue;
t = value 0.0625;
value = t 100 + (value 0 0.5 -0.5); 大于0加0.5, 小于0减0.5 return value;
}
void display(int v)
{
unsigned char count;
unsigned char datas[] = {0, 0, 0, 0, 0};
unsigned int tmp = abs(v);temp=tmp100;
datas[0] = tmp 10000;
datas[1] = tmp % 10000 1000;
datas[2] = tmp % 1000 100;
datas[3] = tmp % 100 10;
datas[4] = tmp % 10;
writeComm(0xc0+3);
if(v 0)
{
writeString(- , 2);
}
else
{
writeString(+ , 2);
}
if(datas[0] != 0)
{
writeData('0'+datas[0]);
}
for(count = 1; count != 5; count++)
{
writeData('0'+datas[count]);
if(count == 2)
{
writeData('.');
}
}
}
DS18B20
void main()
{
uchar table[] = current tempera;
uchar table1[] = set temperature;
flag=29; 设置的温度
flag1=100flag;
sendChangeCmd();
biaozh=0; 标志位
k1=1;k2=1;k3=1;jd=1;
while(red){jd=1;}
while(!red) 当红外避障检测到人体
{
init();
writeComm(0x80);
writeString(table, 16);if(k3==0){while(!k3);P1=0;}
while(biaozh==0)
{ while(red){jd=1;}
flag=flag1100;
delayMs(750); 温度转换时间需要750ms以上
writeComm(0xc0);
display(getTmpValue());
if(temp=flag)当实际温度大于等于设定温度
{
bin=0;蜂鸣器响
jd=1; 继电器关掉
}
if(tempflag){bin=1;jd=0;}
sendChangeCmd();
if(k3==0){while(!k3);biaozh=1;}
}
sendChangeCmd();
init();
writeComm(0x80);
writeString(table1, 16);
while(biaozh==1)
{
while(red){jd=1;}
writeComm(0xc0);
display(flag1);
sendChangeCmd(); if(k3==0){while(!k3);biaozh=0;}
if(k1==0){while(!k1);flag1+=100;}
if(k2==0){while(!k2);flag1-=100;}
}
}
}。