單片機設計溫濕度傳感器的設計程序

1、-作者xxxx-日期xxxx單片機設計溫濕度傳感器的設計程序【精品文檔】（GDAIB小遠制作）R #ifndef _REG51_H_#define _REG51_H_/* BYTE Register */sfr P0 = 0x80;sfr P1 = 0x90;sfr P2 = 0xA0;sfr P3 = 0xB0;sfr PSW = 0xD0;sfr ACC = 0xE0;sfr B = 0xF0;sfr SP = 0x81;sfr DPL = 0x82;sfr DPH = 0x83;sfr PCON = 0x87;sfr TCON = 0x88;sfr TMOD = 0x89;sfr TL0

2、 = 0x8A;sfr TL1 = 0x8B;sfr TH0 = 0x8C;sfr TH1 = 0x8D;sfr IE = 0xA8;sfr IP = 0xB8;sfr SCON = 0x98;sfr SBUF = 0x99;/* BIT Register */* PSW */sbit CY = 0xD7;sbit AC = 0xD6;sbit F0 = 0xD5;sbit RS1 = 0xD4;sbit RS0 = 0xD3;sbit OV = 0xD2;sbit P = 0xD0;/* TCON */sbit TF1 = 0x8F;sbit TR1 = 0x8E;sbit TF0 = 0x

3、8D;sbit TR0 = 0x8C;sbit IE1 = 0x8B;sbit IT1 = 0x8A;sbit IE0 = 0x89;sbit IT0 = 0x88;/* IE */sbit EA = 0xAF;sbit ES = 0xAC;sbit ET1 = 0xAB;sbit EX1 = 0xAA;sbit ET0 = 0xA9;sbit EX0 = 0xA8;/* IP */ sbit PS = 0xBC;sbit PT1 = 0xBB;sbit PX1 = 0xBA;sbit PT0 = 0xB9;sbit PX0 = 0xB8;/* P3 */sbit RD = 0xB7;sbit

4、 WR = 0xB6;sbit T1 = 0xB5;sbit T0 = 0xB4;sbit INT1 = 0xB3;sbit INT0 = 0xB2;sbit TXD = 0xB1;sbit RXD = 0xB0;/* SCON */sbit SM0 = 0x9F;sbit SM1 = 0x9E;sbit SM2 = 0x9D;sbit REN = 0x9C;sbit TB8 = 0x9B;sbit RB8 = 0x9A;sbit TI = 0x99;sbit RI = 0x98;#endifM#ifndef _MAIN_H_#define _MAIN_H_#include#define uc

5、har unsigned char#define uint unsigned intvoid delay1m(uint x);void RH_founction();/溫濕度讀取子程序void init_1602();/初始化1602函數(shù)void DHT11_display(uchar add,uchar shi,uchar ge);/溫濕度顯示函數(shù)void key_shidu();void key_wendu();void alarm_function();void w_string(uchar add, uchar *p);#endifM/溫濕度實時監(jiān)測顯示，超限報警,溫度測量范圍為0+5

6、0; 濕度測量范圍為20%90%;#includemain.hsbit s1=P14;/溫度sbit s2=P13;/濕度sbit s3=P12;/sbit s4=P11;/sbit s5=P10;/確定sbit alarm=P15;/蜂鳴器報警extern uchar TH,RH;/溫度整數(shù)，濕度整數(shù)部分uchar code word116= My own design! ; uchar code word216=Tem= C Hum= %;/word24word25C word213word214%uchar code hehe16= Set Temperature!;/設置溫度上下限界面

7、uchar code haha16= Set Humidity! ;/設置濕度上下限界面uchar code word316=up= C down= C;uchar code word416=up= % down= %;uchar w_up=30;w_down=20;/溫度上下限uchar s_up=60;s_down=40;/濕度上下限void main()uint i; init_1602();delay1m(500);/延時等待1602穩(wěn)定RH_founction();while(1) key_wendu();/溫度上下限調整key_shidu();/濕度上下限調整i+;if(i2000

8、)/動態(tài)延時讀取溫濕度值i=0;RH_founction();/讀取溫濕度DHT11_display(0xc0+4,TH/10+0x30,TH%10+0x30); /顯示溫度 DHT11_display(0xc0+13,RH/10+0x30,RH%10+0x30); /顯示濕度if(THw_up)|(THs_up)|(RH4000)counter=0;/清零if(counter2000)DHT11_display(dzwei,0x20,0x20);/顯示空格if(counter1)wei=0;if(!s3)/加1while(!s3);bufwei+;if(bufwei50)bufwei=0;i

9、f(!s4)/減1while(!s4);bufwei-;if(bufwei=0xff)bufwei=50;if(buf04000)counter=0;/清零if(counter2000)DHT11_display(dzwei,0x20,0x20);/顯示空格if(counter1)wei=0;if(!s3)/加1while(!s3);bufwei+;if(bufwei90)bufwei=0;if(!s4)/減1while(!s4);bufwei-;if(bufwei20)bufwei=90; if(buf0=buf1)buf0=60;buf1=40;/如果濕度上限不大于下限，回到初始狀態(tài)whi

10、le(s5);/按下s5設置確定s_up=buf0;s_down=buf1;w_string(0x80,word1);w_string(0xc0,word2);/發(fā)送字符串到LCD第一行 /=ms級延時函數(shù)= void delay1m(uint x) uint k,j; for(k=0;kx;k+) /連數(shù)x次，約 x ms for(j=0;j120;j+); /數(shù)120 次，約1 ms#includemain.h#define shuju P0/數(shù)據(jù)腳sbit rs=P27;/數(shù)據(jù)命令選擇端sbit rw=P26;/讀寫選擇端sbit en=P25;/1602使能端sbit busy = P

11、07;/檢測為1，說明1602忙extern uchar code word116;extern uchar code word216;/=讀繁忙標記函數(shù)=void read_busy()shuju = 0xff;/準備讀數(shù)據(jù)dors = 0;/讀狀態(tài)rw = 1;/讀en = 0;en = 1;/使能1602數(shù)據(jù)讀出 while(busy);en = 0;/=寫命令函數(shù)=void write_cmd(uchar cmd)read_busy();rs = 0;/寫指令rw = 0;/寫shuju = cmd;en = 0;en = 1;en = 0; /=寫數(shù)據(jù)函數(shù)=void write_da

12、t(uchar dat)read_busy();rs = 1;/寫數(shù)據(jù)rw = 0;/寫shuju = dat;en = 0;en = 1;en = 0;/=1602初始化函數(shù)=void init_1602()write_cmd(0x38); / 16*2顯示，5*7點陣，8位數(shù)據(jù)接口 write_cmd(0x0c); / 顯示開、光標關、光標不允許閃爍 write_cmd(0x06); / 文字不動，光標自動右移 write_cmd(0x01); / 清屏w_string(0x80,word1);w_string(0xc0,word2);/=將溫濕度數(shù)據(jù)分成高低位在1602上顯示函數(shù)=voi

13、d DHT11_display(uchar ad,uchar shi,uchar ge) write_cmd(ad);write_dat(shi);write_dat(ge);/=調整數(shù)據(jù)的時候，1602顯示=void w_string(uchar add, uchar *p) /發(fā)送字符串到LCDuchar i;write_cmd(add);for(i=0;i0;j-) for(i=0;i27;i+);void Delay_10us(void) uchar i; i-;i-;i-; i-;i-;i-;void COM(void) uchar i; for(i=0;i8;i+) flag=2;

14、 while(!DQ)&flag+); Delay_10us(); Delay_10us(); Delay_10us(); temp=0; if(DQ)temp=1;/判斷數(shù)據(jù)位是0還是1 flag=2; while(DQ)&flag+); if(flag=1)break;/超時則跳出for循環(huán) /如果高電平高過預定0高電平值則數(shù)據(jù)位為 1 comdata=1; comdata|=temp; /-溫濕度讀取子程序 -void RH_founction() DQ=0; Delay(180);/主機拉低18ms DQ=1;/總線由上拉電阻拉高 主機延時20us Delay_10us(); Delay_10us(); Delay_10us(); Delay_10us(); DQ=1;/主機設為輸入 判斷從機響應信號 if(!DQ)/判斷從機是否有低電平響應信號 如不響應則跳出，響應則向下運行 flag=2; while(!DQ)&flag+);/判斷從機是否發(fā)出 80us 的低電平響應信號是否結束 flag=2;while(DQ)&flag+); /判斷從機是否發(fā)出 80us 的高電平，如發(fā)出則進入數(shù)據(jù)接收狀態(tài) /數(shù)據(jù)接收狀態(tài) COM(); RH_temp=comdata; COM(); R