51單片機(jī)顯示CO與溫濕度

ID:192833 · 發(fā)表于 2017-5-5 12:20

#include<reg52.h>
#include <absacc.h>
#define uint unsigned int
#define uchar unsigned char
sbit rs=P1^2;
sbit rw=P1^3;
sbit en=P1^4;
sbit DQ=P3^4;
sbit start=P1^0; // 18b20總線
sbit eoc=P3^3;
sbit oe=P1^1;
sbit CLK=P3^6;
unsigned char tem;
unsigned char dat[8]={0}; //溫度
unsigned char shuju1[7]={0}; //濕度
unsigned char shuju2[9]={0};
uchar codetable1[16]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x54,0x3a,0x2d,0x2e,0x20,0x2f}; //溫度調(diào)用
uchar codetable2[15]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x53,0x3a,0x25,0x2e,0x20}; //濕度調(diào)用
uchar codetable3[15]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x43,0x6f,0x3a,0x20,0x2e};
/**************1602d調(diào)用函數(shù)*******************/
void write_com(uchar com);
void write_shuju(uchar shuju);
void init();
void delay(uchar z);
/**************18b20調(diào)用函數(shù)**************/
unsigned char reset(void); //18b20初始化//
void write(uchar dat); //18b20寫(xiě)時(shí)序
unsigned char read(void); //18b20讀時(shí)序
void readtemperature(void); //18b20讀二進(jìn)制16位溫度
void yanshi(unsigned int us);
/****************hs1101調(diào)用函數(shù)*************************/
void readfrequency(void); // 讀頻率函數(shù)//
bit minrange=0; //濕度下限標(biāo)志位//
bit maxrange=0; //濕度上限標(biāo)志位//
bit T0Over=0; //定時(shí)器結(jié)束標(biāo)記
unsigned char w,x,y;
/******************主函數(shù)******************/
void main()
{
init();
while(1)
{
readtemperature();
write_com(0x80+0x40);
write_shuju(table1[dat[0]]);
write_com(0x80+0x41);
write_shuju(table1[dat[1]]);
write_com(0x80+0x42);
write_shuju(table1[dat[2]]);
write_com(0x80+0x43);
write_shuju(table1[dat[3]]);
write_com(0x80+0x44);
write_shuju(table1[dat[4]]);
write_com(0x80+0x45);
write_shuju(table1[dat[5]]);
write_com(0x80+0x46);
write_shuju(table1[dat[6]]);
write_com(0x80+0x47);
write_shuju(table1[dat[7]]);
readfrequency();
}
}
/*****************1602延時(shí)程序*****************/
void delay(uchar z)
{
uint a,b;
for(a=0;a<z;a++)
for(b=0;b<110;b++);
}
/*******************1602初始化**************/
void init()
{
oe=0;
en=0;
write_com(0x38); //設(shè)置為8位并行，顯示2行，5*7點(diǎn)陣顯示
write_com(0x0c); //設(shè)置顯示開(kāi)無(wú)光標(biāo) 光標(biāo)不閃爍
write_com(0x01); //清屏指令
write_com(0x80);
}
/***************1602寫(xiě)指令*********************/
void write_com(uchar com)
{
rs=0;
rw=0;
P0=com;
delay(5);
en=1;
en=0;
}
/**************1602寫(xiě)數(shù)據(jù)**********************/
void write_shuju(uchar shuju)
{
rs=1;
rw=0;
P0=shuju;
delay(5);
en=1;
en=0;
}
/*************18b20微秒延時(shí)********************/
void yanshi(unsigned int us)
{
int s;
for(s=0;s<us;s++);
}
/************************18b20初始化********/
unsigned char reset(void)
{
unsigned char presence;
DQ=0;
yanshi(60); //大概480微秒
DQ=1;
yanshi(8); //延時(shí)大概50微秒
presence=DQ;
yanshi(14);
return(presence); }
/*************18b20寫(xiě)時(shí)序*************************/
void write(unsigned char dat)
{
unsigned char i;
for(i=8;i>0;i--)
{
DQ=0;
DQ=dat&0x01;
yanshi(16);
DQ=1;
dat>>=1;
}
}
/***************18b20讀時(shí)序*********************/
unsigned char read(void)
{
unsigned char i,dat=0;
for(i=8;i>0;i--)
{
DQ=0;
dat>>=1;
DQ=1;
if(DQ)
dat|=0x80;
yanshi(7);
}
return (dat);
}
/**************18b20讀溫度**********************/
void readtemperature(void)
{
unsigned char temp;
int temperature;
reset();
write(0xcc); //跳過(guò)讀序號(hào)操作
write(0x44); //啟動(dòng)溫度轉(zhuǎn)換
reset();
write(0xcc); //跳過(guò)讀序號(hào)操作
write(0xbe); //讀取溫度寄存器
temperature=read();
temp=read();
temperature=temperature|(temp<<8);
dat[0]=10;
dat[1]=11;
dat[2]=14;
if(temperature<0)
{
dat[2]=12;
temperature=~temperature+1;
}
dat[3]=(temperature*10/16)/100; //十位
dat[4]=((temperature*10/16)%100)/10; //個(gè)位
dat[5]=13;
dat[6]=((temperature*10/16)%100)%10; //小數(shù)點(diǎn)后一位
dat[7]=15;
}
/****************中斷*****************************/
void timer0() interrupt 1
{
TR1=0;
TR0=0;
TF0=0;
ET0=0;
T0Over=1;
}
/*******AD控制程序*******************************/
void zhuanhuan()
{
start=0;
start=1;
start=0;
while(!eoc);
oe=1;
tem=P0;
oe=0;
tem=(tem*2*1*98.039216/100); //AD采樣換算
}
/*************濕度傳感器頻率采集及轉(zhuǎn)換模塊***************/
void readfrequency()
{
unsigned int ftequency,RH;
TMOD=0x51;
TH0=0x4C;
TL0=0X00;
TH1=0;
TL1=0;
TR1=1;
TR0=1;
ET0=1;
ET1=0;
EA=1;
T0Over=0;
while(!T0Over)
write_com(0x80+0x48);
write_shuju(table2[shuju1[0]]);
write_com(0x80+0x49);
write_shuju(table2[shuju1[1]]);
write_com(0x80+0x4a);
write_shuju(table2[shuju1[2]]);
write_com(0x80+0x4b);
write_shuju(table2[shuju1[3]]);
write_com(0x80+0x4c);
write_shuju(table2[shuju1[4]]);
write_com(0x80+0x4d);
write_shuju(table2[shuju1[5]]);
write_com(0x80+0x4e);
write_shuju(table2[shuju1[6]]);
ftequency=(TH1*256+TL1)*20;
minrange=0;
maxrange=0;
if(ftequency)
{
if(ftequency<6033)
maxrange=1;
if(ftequency>7351)
minrange=1;
if(6330<ftequency<=7351)
RH=5880-0.8*ftequency;
if(6033<=ftequency<=6330)
RH=5860-0.8*ftequency;
shuju1[0]=10;
shuju1[1]=11;
shuju1[2]=RH/100;
shuju1[3]=(RH%100)/10;
shuju1[4]=13;
shuju1[5]=(RH%10);
shuju1[6]=12;
write_com(0x80);
write_shuju(table3[shuju2[0]]);
write_com(0x81);
write_shuju(table3[shuju2[1]]);
write_com(0x82);
write_shuju(table3[shuju2[2]]);
write_com(0x83);
write_shuju(table3[shuju2[3]]);
write_com(0x84);
write_shuju(table3[shuju2[4]]);
write_com(0x85);
write_shuju(table3[shuju2[5]]);
write_com(0x86);
write_shuju(table3[shuju2[6]]);
write_com(0x87);
write_shuju(table3[shuju2[7]]);
write_com(0x88);
write_shuju(table3[shuju2[8]]);
shuju2[0]=10;
shuju2[1]=11;
shuju2[2]=12;
shuju2[3]=13;
shuju2[4]= tem/1000;
shuju2[5]= tem%1000/100;
shuju2[6]= 14;
shuju2[7]= tem%100/10;
shuju2[8]= tem%10;
zhuanhuan();
}
}

復(fù)制代碼

帳號(hào)		自動(dòng)登錄	找回密碼
密碼			立即注冊(cè)

久久久久久久999_99精品久久精品一区二区爱城_成人欧美一区二区三区在线播放_国产精品日本一区二区不卡视频_国产午夜视频_欧美精品在线观看免费

51單片機(jī)顯示CO與溫濕度

相關(guān)帖子