51單片機(jī)智能溫控器C語(yǔ)言源程序
這是一款51單片機(jī)智能溫控器C語(yǔ)言源程序,程序功能:速成有時(shí)鐘顯示,使用DS18B20進(jìn)行溫度檢測(cè),控制溫度可通過(guò)按鍵進(jìn)行設(shè)置,輸出通過(guò)繼電器械驅(qū)動(dòng)加熱器進(jìn)行加熱。是一款功能較為完善的溫度控制板,適合單片機(jī)愛(ài)好者進(jìn)行溫度控制的電子制作實(shí)作項(xiàng)目。電路簡(jiǎn)單,容易制作,調(diào)試容易。
#include 'reg51.h'
#include 'intrins.h'
#include 'absacc.h'
#define uchar unsigned char
#define uint unsigned int
#define BUSY 0x80 //lcd忙檢測(cè)標(biāo)志
#define DATAPORT P0 //定義P0口為L(zhǎng)CD通訊端口
#define PLAYE_ADDR XBYTE[0XBFFF] //語(yǔ)音報(bào)警地址
sbit RED_ALARM=P1^0; //紅色指示燈
sbit WRITE_ALARM=P1^1; //白色指示燈
sbit GREEN_ALARM=P1^2; //綠色指示燈
sbit P1_4=P1^4; //時(shí)鐘調(diào)整
sbit P1_5=P1^5; //時(shí)鐘加
sbit P1_6=P1^6; //時(shí)鐘減
sbit DQ = P1^7; //定義ds18b20通信端口
sbit LCM_RS=P2^0; //數(shù)據(jù)/命令端
sbit LCM_RW=P2^1; //讀/寫(xiě)選擇端
sbit LCM_EN=P2^2; //LCD使能信號(hào)
sbit ad_busy=P3^2; //adc中斷方式接口
sbit RECLED_EOC=P3^5; //ISD1420放音結(jié)束查詢(xún)標(biāo)志
sbit OUT=P3^7;
uchar ad_data; //ad采樣值存儲(chǔ)
uchar seconde=0; //定義并初始化時(shí)鐘變量
uchar minite=0;
uchar hour=12;
uchar mstcnt=0;
uchar temp1,temp2,temp; //溫度顯示變量
uchar t,set;
uchar T;
bit ON_OFF;
bit outflag;
uchar code str0[]={"--- : : ---OF"};
uchar code str1[]={"SET: C SA: . C"};
void delay_LCM(uint); //LCD延時(shí)子程序
void initLCM( void); //LCD初始化子程序
void lcd_wait(void); //LCD檢測(cè)忙子程序
void WriteCommandLCM(uchar WCLCM,uchar BusyC); //寫(xiě)指令到ICM子函數(shù)
void WriteDataLCM(uchar WDLCM); //寫(xiě)數(shù)據(jù)到LCM子函數(shù)
void DisplayOneChar(uchar X,uchar Y,uchar DData); //顯示指定坐標(biāo)的一個(gè)字符子函數(shù)
void DisplayListChar(uchar X,uchar Y,uchar code *DData); //顯示指定坐標(biāo)的一串字符子函數(shù)
void init_timer0(void); //定時(shí)器初始化
void displayfun1(void);
void displayfun2(void);
void displayfun3(void);
void displayfun4(void);
void keyscan(void ); //鍵盤(pán)掃描子程序
void set_adj(void);
void inc_key(void);
void dec_key(void);
void delay_18B20(unsigned int i);
void Init_DS18B20(void) ;
uchar ReadOneChar(void);
void WriteOneChar(unsigned char dat);
void ReadTemperature(void);
void ad0809(void);
void playalarm(void);
void delay_LCM(uint k)
{
uint i,j;
for(i=0;i
{
for(j=0;j<60;j++)
{;}
}
}
void WriteCommandLCM(uchar WCLCM,uchar BusyC)
{
if(BusyC)lcd_wait();
DATAPORT=WCLCM;
LCM_RS=0; // 選中指令寄存器
LCM_RW=0; // 寫(xiě)模式
LCM_EN=1;
_nop_();
_nop_();
_nop_();
LCM_EN=0;
}
void WriteDataLCM(uchar WDLCM)
{
lcd_wait( ); //檢測(cè)忙信號(hào)
DATAPORT=WDLCM;
LCM_RS=1; // 選中數(shù)據(jù)寄存器
LCM_RW=0; // 寫(xiě)模式
LCM_EN=1;
_nop_();
_nop_();
_nop_();
LCM_EN=0;
}
void lcd_wait(void)
{
DATAPORT=0xff;
LCM_EN=1;
LCM_RS=0;
LCM_RW=1;
_nop_();
while(DATAPORT&BUSY)
{ LCM_EN=0;
_nop_();
_nop_();
LCM_EN=1;
_nop_();
_nop_();
}
LCM_EN=0;
}
void initLCM( )
{
DATAPORT=0;
delay_LCM(15);
WriteCommandLCM(0x38,0); //三次顯示模式設(shè)置,不檢測(cè)忙信號(hào)
delay_LCM(5);
WriteCommandLCM(0x38,0);
delay_LCM(5);
WriteCommandLCM(0x38,0);
delay_LCM(5);
WriteCommandLCM(0x38,1); //8bit數(shù)據(jù)傳送,2行顯示,5*7字型,檢測(cè)忙信號(hào)
WriteCommandLCM(0x08,1); //關(guān)閉顯示,檢測(cè)忙信號(hào)
WriteCommandLCM(0x01,1); //清屏,檢測(cè)忙信號(hào)
WriteCommandLCM(0x06,1); //顯示光標(biāo)右移設(shè)置,檢測(cè)忙信號(hào)
WriteCommandLCM(0x0c,1); //顯示屏打開(kāi),光標(biāo)不顯示,不閃爍,檢測(cè)忙信號(hào)
}
void DisplayOneChar(uchar X,uchar Y,uchar DData)
{
Y&=1;
X&=15;
if(Y)X|=0x40; //若y為1(顯示第二行),地址碼+0X40
X|=0x80; //指令碼為地址碼+0X80
WriteCommandLCM(X,0);
WriteDataLCM(DData);
}
void DisplayListChar(uchar X,uchar Y,uchar code *DData)
{
uchar ListLength=0;
Y&=0x01;
X&=0x0f;
while(X<16)
{
DisplayOneChar(X,Y,DData[ListLength]);
ListLength++;
X++;
}
}
void delay_18B20(unsigned int i)
{
while(i--);
}
void Init_DS18B20(void)
{
unsigned char x=0;
DQ = 1; //DQ復(fù)位
delay_18B20(8); //稍做延時(shí)
DQ = 0; //單片機(jī)將DQ拉低
delay_18B20(80); //精確延時(shí) 大于 480us
DQ = 1; //拉高總線(xiàn)
delay_18B20(14);
x=DQ; //稍做延時(shí)后 如果x=0則初始化成功 x=1則初始化失敗
delay_18B20(20);
}
unsigned char ReadOneChar(void)
{
uchar i=0;
uchar dat = 0;
for (i=8;i>0;i--)
{
DQ = 0; // 給脈沖信號(hào)
dat>>=1;
DQ = 1; // 給脈沖信號(hào)
if(DQ)
dat|=0x80;
delay_18B20(4);
}
return(dat);
}
void WriteOneChar(uchar dat)
{
unsigned char i=0;
for (i=8; i>0; i--)
{
DQ = 0;
DQ = dat&0x01;
delay_18B20(5);
DQ = 1;
dat>>=1;
}
}
void ReadTemperature(void)
{
unsigned char a=0;
unsigned char b=0;
unsigned char t=0;
Init_DS18B20();
WriteOneChar(0xCC); // 跳過(guò)讀序號(hào)列號(hào)的操作
WriteOneChar(0x44); // 啟動(dòng)溫度轉(zhuǎn)換
delay_18B20(100); // this message is wery important
Init_DS18B20();
WriteOneChar(0xCC); //跳過(guò)讀序號(hào)列號(hào)的操作
WriteOneChar(0xBE); //讀取溫度寄存器等(共可讀9個(gè)寄存器) 前兩個(gè)就是溫度
delay_18B20(100);
a=ReadOneChar(); //讀取溫度值低位
b=ReadOneChar(); //讀取溫度值高位
temp1=b<<4;
temp1+=(a&0xf0)>>4;
temp2=a&0x0f;
temp=((b*256+a)>>4); //當(dāng)前采集溫度值除16得實(shí)際溫度值
}
void displayfun1(void)
{
WriteCommandLCM(0x0c,1); //顯示屏打開(kāi),光標(biāo)不顯示,不閃爍,檢測(cè)忙信號(hào)
DisplayListChar(0,0,str0);
DisplayListChar(0,1,str1);
DisplayOneChar(3,0,hour/10+0x30); //液晶上顯示小時(shí)
DisplayOneChar(4,0,hour+0x30);
DisplayOneChar(6,0,minite/10+0x30); //液晶上顯示分
DisplayOneChar(7,0,minite+0x30);
DisplayOneChar(9,0,seconde/10+0x30); //液晶上顯示秒
DisplayOneChar(10,0,seconde+0x30);
DisplayOneChar(4,1,T/10+0x30); //液晶上顯示設(shè)定的溫度
DisplayOneChar(5,1,T+0x30);
DisplayOneChar(11,1,temp1/10+0x30); //液晶上顯示測(cè)得的溫度
DisplayOneChar(12,1,temp1+0x30);
DisplayOneChar(14,1,temp2/10+0x30);
if(ON_OFF==0) //若溫控標(biāo)志為0
{
DisplayOneChar(14,0,0x4f); // 液晶上顯示不控溫的標(biāo)志
DisplayOneChar(15,0,0x46);
}
else
{
DisplayOneChar(14,0,0x4f); // 液晶上顯示控溫的標(biāo)志
DisplayOneChar(15,0,0x4e);
if(outflag==1)
DisplayOneChar(0,0,0x7c);
else
DisplayOneChar(0,0,0xef);
}
}
void displayfun2(void)
{
WriteCommandLCM(0x0c,1); //顯示屏打開(kāi),光標(biāo)不顯示,不閃爍,檢測(cè)忙信號(hào)
DisplayListChar(0,0,str0);
DisplayListChar(0,1,str1);
DisplayOneChar(6,0,minite/10+0x30);
DisplayOneChar(7,0,minite+0x30);
DisplayOneChar(9,0,seconde/10+0x30);
DisplayOneChar(10,0,seconde+0x30);
DisplayOneChar(4,1,T/10+0x30);
DisplayOneChar(5,1,T+0x30);
DisplayOneChar(11,1,temp1/10+0x30);
DisplayOneChar(12,1,temp1+0x30);
DisplayOneChar(14,1,temp2/10+0x30);
WriteCommandLCM(0x0f,1); //顯示屏打開(kāi),光標(biāo)顯示,閃爍,檢測(cè)忙信號(hào)
DisplayOneChar(3,0,hour/10+0x30);
DisplayOneChar(4,0,hour+0x30);
}
void displayfun3(void)
{
WriteCommandLCM(0x0c,1); //顯示屏打開(kāi),光標(biāo)不顯示,不閃爍,檢測(cè)忙信號(hào)
DisplayListChar(0,0,str0);
DisplayListChar(0,1,str1);
DisplayOneChar(3,0,hour/10+0x30);
DisplayOneChar(4,0,hour+0x30);
DisplayOneChar(9,0,seconde/10+0x30);
DisplayOneChar(10,0,seconde+0x30);
DisplayOneChar(4,1,T/10+0x30);
DisplayOneChar(5,1,T+0x30);
DisplayOneChar(11,1,temp1/10+0x30);
DisplayOneChar(12,1,temp1+0x30);
DisplayOneChar(14,1,temp2/10+0x30);
WriteCommandLCM(0x0f,1); //顯示屏打開(kāi),光標(biāo)顯示,閃爍,檢測(cè)忙信號(hào)
DisplayOneChar(6,0,minite/10+0x30);
DisplayOneChar(7,0,minite+0x30);
}
void displayfun4(void)
{
WriteCommandLCM(0x0c,1); //顯示屏打開(kāi),光標(biāo)不顯示,不閃爍,檢測(cè)忙信號(hào)
DisplayListChar(0,0,str0);
DisplayListChar(0,1,str1);
DisplayOneChar(3,0,hour/10+0x30);
DisplayOneChar(4,0,hour+0x30);
DisplayOneChar(6,0,minite/10+0x30);
DisplayOneChar(7,0,minite+0x30);
DisplayOneChar(9,0,seconde/10+0x30);
DisplayOneChar(10,0,seconde+0x30);
DisplayOneChar(11,1,temp1/10+0x30);
DisplayOneChar(12,1,temp1+0x30);
DisplayOneChar(14,1,temp2/10+0x30);
WriteCommandLCM(0x0f,1); //顯示屏打開(kāi),光標(biāo)顯示,閃爍,檢測(cè)忙信號(hào)
DisplayOneChar(4,1,T/10+0x30);
DisplayOneChar(5,1,T+0x30);
}
void keyscan(void)
{
uchar xx; //局部變量
P1=0xff;
if(P1!=0xff)
{
delay_LCM(30);
if(P1!=0xff)
{
xx=P1;
switch(xx) // 根據(jù)按鍵狀態(tài),調(diào)用不同的子函數(shù)
{
case 0xfe:set_adj(); break;
case 0xfd:inc_key(); break;
case 0xfb:dec_key(); break;
case 0xf7:ON_OFF=!ON_OFF; break;
default:break;
}
}
}
}
void set_adj(void)
{
delay_LCM(100);
set++;
if(set>=4)set=0;
}
void inc_key(void)
{
delay_LCM(100);
switch(set)
{
case 0:if(P2==0xf7)ON_OFF=!ON_OFF; break;
case 1:hour++; if(hour>=23)hour=23; break;
case 2:minite++; if(minite>=59)minite=59;break;
case 3:T++;if(T>=99)T=99; break;
default:break;
}
}
void dec_key(void)
{
delay_LCM(100);
switch(set)
{
case 0:if(P2==0xf7)ON_OFF=!ON_OFF; break;
case 1:hour--; if(hour<=0)hour=0; break;
case 2:minite--;if(minite<=0)minite=0;break;
case 3:T--;if(T<=1)T=1; break;
default:break;
}
}
void init_timer0(void)
{
TMOD=0x01; //time0為定時(shí)器,方式1
TH0=0x3c; //預(yù)置計(jì)數(shù)初值
TL0=0xb0;
EA=1;
ET0=1;
TR0=1;
}
void timer0(void) interrupt 1 using 0 //定時(shí)器0方式1,50ms中斷一次
{
TH0=0x3c;
TL0=0xb0;
mstcnt++;
if(mstcnt>=20 ) {seconde++; mstcnt=0; }
if(seconde>=60) {minite++; seconde=0;}
if(minite>=60 ) {hour++; minite=0; }
if(hour>=24 ) {hour=0;}
keyscan( ); //按鍵掃描
}
void playalarm(void) //語(yǔ)音提示溫度上升過(guò)快
{
if(temp>25&&temp<30)
{
delay_LCM(10);
if(temp>20&&temp<22)
{
RED_ALARM=0;
PLAYE_ADDR=0x11;
_nop_();
_nop_();
PLAYE_ADDR=0x10;
while(RECLED_EOC==1); //等待放音結(jié)束
RED_ALARM=1;
}
}
if(temp>30&&temp<35) //語(yǔ)音提示溫度上升過(guò)慢
{
delay_LCM(10);
if(temp>22&&temp<25)
{
GREEN_ALARM=0;
PLAYE_ADDR=0x21;
_nop_();
_nop_();
PLAYE_ADDR=0x20;
while(RECLED_EOC==1);
GREEN_ALARM=1;
}
}
if(temp>35&&temp<40) //語(yǔ)音提示恒溫控制
{
delay_LCM(10);
if(temp>25&&temp<30)
{
WRITE_ALARM=0;
PLAYE_ADDR=0x31;
_nop_();
_nop_();
PLAYE_ADDR=0x30;
while(RECLED_EOC==1);
WRITE_ALARM=1;
}
}
}
void main(void)
{
ad_data=0; //采樣值存儲(chǔ)單元初始化為0
P1=0xff; //初始化p1口,全設(shè)為1
delay_LCM(500); //延時(shí)500ms啟動(dòng)
initLCM( ); //LCD初始化
init_timer0( ); //時(shí)鐘定時(shí)器0初始化
Init_DS18B20( ) ; //DS18B20初始化
DisplayListChar(0,0,str0);
DisplayListChar(0,1,str1);
while (1)
{
keyscan(); //按鍵掃描
ReadTemperature(); //溫度采集
playalarm();
switch(set) //LCD根據(jù)工作模式顯示
{
case 0:displayfun1();delay_LCM(1000);break; //正常工作顯示
case 1:displayfun2();delay_LCM(1000);break; //調(diào)整時(shí)顯示
case 2:displayfun3();delay_LCM(1000);break; //調(diào)整分顯示
case 3:displayfun4();delay_LCM(1000);break;
default:break;
}
keyscan( ); //相當(dāng)于延時(shí)
if(ON_OFF==1) //若溫控標(biāo)志位1, 控制LAMP動(dòng)作
{
if(temp1>=T+1){outflag=1;OUT=0;}
if(temp1
{
delay_LCM(1000);
if(temp1
}
}
else{outflag=0;OUT=1;}
}
}