单片机设计温湿度传感器的设计程序

1、-作者xxxx-日期xxxx单片机设计温湿度传感器的设计程序【精品文档】（GDAIB小远制作）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();/温湿度读取子程序void init_1602();/初始化1602函数void DHT11_display(uchar add,uchar shi,uchar ge);/温湿度显示函数void key_shidu();void key_wendu();void alarm_function();void w_string(uchar add, uchar *p);#endifM/温湿度实时监测显示，超限报警,温度测量范围为0+5

6、0; 湿度测量范围为20%90%;#includemain.hsbit s1=P14;/温度sbit s2=P13;/湿度sbit s3=P12;/sbit s4=P11;/sbit s5=P10;/确定sbit alarm=P15;/蜂鸣器报警extern uchar TH,RH;/温度整数，湿度整数部分uchar code word116= My own design! ; uchar code word216=Tem= C Hum= %;/word24word25C word213word214%uchar code hehe16= Set Temperature!;/设置温度上下限界面

7、uchar code haha16= Set Humidity! ;/设置湿度上下限界面uchar code word316=up= C down= C;uchar code word416=up= % down= %;uchar w_up=30;w_down=20;/温度上下限uchar s_up=60;s_down=40;/湿度上下限void main()uint i; init_1602();delay1m(500);/延时等待1602稳定RH_founction();while(1) key_wendu();/温度上下限调整key_shidu();/湿度上下限调整i+;if(i2000

8、)/动态延时读取温湿度值i=0;RH_founction();/读取温湿度DHT11_display(0xc0+4,TH/10+0x30,TH%10+0x30); /显示温度 DHT11_display(0xc0+13,RH/10+0x30,RH%10+0x30); /显示湿度if(THw_up)|(THs_up)|(RH4000)counter=0;/清零if(counter2000)DHT11_display(dzwei,0x20,0x20);/显示空格if(counter1)wei=0;if(!s3)/加1while(!s3);bufwei+;if(bufwei50)bufwei=0;i

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

10、le(s5);/按下s5设置确定s_up=buf0;s_down=buf1;w_string(0x80,word1);w_string(0xc0,word2);/发送字符串到LCD第一行 /=ms级延时函数= void delay1m(uint x) uint k,j; for(k=0;kx;k+) /连数x次，约 x ms for(j=0;j120;j+); /数120 次，约1 ms#includemain.h#define shuju P0/数据脚sbit rs=P27;/数据命令选择端sbit rw=P26;/读写选择端sbit en=P25;/1602使能端sbit busy = P

11、07;/检测为1，说明1602忙extern uchar code word116;extern uchar code word216;/=读繁忙标记函数=void read_busy()shuju = 0xff;/准备读数据dors = 0;/读状态rw = 1;/读en = 0;en = 1;/使能1602数据读出 while(busy);en = 0;/=写命令函数=void write_cmd(uchar cmd)read_busy();rs = 0;/写指令rw = 0;/写shuju = cmd;en = 0;en = 1;en = 0; /=写数据函数=void write_da

12、t(uchar dat)read_busy();rs = 1;/写数据rw = 0;/写shuju = dat;en = 0;en = 1;en = 0;/=1602初始化函数=void init_1602()write_cmd(0x38); / 16*2显示，5*7点阵，8位数据接口 write_cmd(0x0c); / 显示开、光标关、光标不允许闪烁 write_cmd(0x06); / 文字不动，光标自动右移 write_cmd(0x01); / 清屏w_string(0x80,word1);w_string(0xc0,word2);/=将温湿度数据分成高低位在1602上显示函数=voi

13、d DHT11_display(uchar ad,uchar shi,uchar ge) write_cmd(ad);write_dat(shi);write_dat(ge);/=调整数据的时候，1602显示=void w_string(uchar add, uchar *p) /发送字符串到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;/判断数据位是0还是1 flag=2; while(DQ)&flag+); if(flag=1)break;/超时则跳出for循环 /如果高电平高过预定0高电平值则数据位为 1 comdata=1; comdata|=temp; /-温湿度读取子程序 -void RH_founction() DQ=0; Delay(180);/主机拉低18ms DQ=1;/总线由上拉电阻拉高 主机延时20us Delay_10us(); Delay_10us(); Delay_10us(); Delay_10us(); DQ=1;/主机设为输入 判断从机响应信号 if(!DQ)/判断从机是否有低电平响应信号 如不响应则跳出，响应则向下运行 flag=2; while(!DQ)&flag+);/判断从机是否发出 80us 的低电平响应信号是否结束 flag=2;while(DQ)&flag+); /判断从机是否发出 80us 的高电平，如发出则进入数据接收状态 /数据接收状态 COM(); RH_temp=comdata; COM(); R