1、/頭文件#include <STC12C5A60S2.h>#include <intrins.h>#include <key.h> #include <adc0804.h> #include <lcd1602.h> #include <DHT11.h> #define uchar unsigned char #define uint unsigned intuint HIGH,LOW;uchar flag=0;uchar dj_flag=0;uchar countt;char level=0;uint HHH=0;sbit

2、 beep=P23;uchar counter1=0;uchar counter11=1;uchar num11=0;int W=40;int S=80;int G=200;void key() if(K1=0) /K1 menu counter11+; if(counter11>3) counter11=0; while(K1=0); if(counter11=0) lcd_xy_puts(4,0," ");lcd_xy_puts(10,0," ");lcd_xy_puts(5,1," ");if(K3=0) flag=0;l

3、cd_init(); if(counter11=1)/設(shè)置W值 lcd_xy_puts(4,0,"<");lcd_xy_puts(10,0," ");lcd_xy_puts(5,1," "); if(K2=0) /K2 + W=W+1; if(W>99)W=99; while(K2=0); if(K3=0) /K3 - W=W-1; if(W<1)W=0; while(K3=0); if(counter11=2)/設(shè)置S值 lcd_xy_puts(4,0," ");lcd_xy_puts(10,0

4、,"<");lcd_xy_puts(5,1," "); if(K2=0) /K2 + S=S+1; if(S>99)S=99; while(K2=0); if(K3=0) /K3 - S=S-1; if(S<1)S=0; while(K3=0); if(counter11=3)/設(shè)置H值 lcd_xy_puts(4,0," ");lcd_xy_puts(10,0," ");lcd_xy_puts(5,1,"<"); if(K2=0) /K2 + G=G+10; if(G&

5、gt;990)G=990; while(K2=0); if(K3=0) /K3 - G=G-10; if(G<10)G=0; while(K3=0); uchar i,j;uint dianya1,dianya2,dianya3;void main(void) K1=K2=K3=1; lcd_init(); dj_flag=10; counter11=0; W=30;S=50;G=200; JDQ1=JDQ2=1; while(1) /溫度檢測處理與顯示 dianya1 = DHT11_Tem(); dianya1=dianya1%100; lcd_xy_puts(0,0,"W

6、D:"); lcd_goto_xy(3,0);lcd_number(dianya1%100/10); lcd_number(dianya1%10); /濕度數(shù)據(jù)讀取與轉(zhuǎn)換 dianya2 = DHT11_Hum(); dianya2=dianya2%100; lcd_xy_puts(8,0,"SD:"); lcd_goto_xy(11,0);lcd_number(dianya2%100/10); lcd_number(dianya2%10); /光線數(shù)據(jù)讀取與轉(zhuǎn)換 ad0804(); dianya3=(num*jizhun/256)*100; /123 lcd_x

7、y_puts(0,1,"GX:"); lcd_goto_xy(3,1);lcd_number(dianya3%1000/100); lcd_number(dianya3%100/10); lcd_number(dianya3%10); if(K1=0) flag+;if(flag>1) flag=0;/lcd_init(); while(K1=0); if(flag=1) lcd_init(); while(flag=1) lcd_xy_puts(0,0,"W-");lcd_goto_xy(2,0);lcd_number(W/10); lcd_nu

8、mber(W%10);lcd_xy_puts(6,0,"S-");lcd_goto_xy(8,0);lcd_number(S/10); lcd_number(S%10);lcd_xy_puts(0,1,"G-");lcd_goto_xy(2,1);lcd_number(G%1000/100);lcd_number(G%100/10); lcd_number(G%10); key(); if(dianya1>W) beep=LED1=JDQ1=0;LED2=LED3=1; else if(dianya2>S) beep=LED2=JDQ1=0;

9、LED1=LED3=1; else if(dianya3>G) beep=JDQ2=LED3=0;LED2=LED1=1; else beep=LED1=LED2=LED3=JDQ2=JDQ1=1; Key:#ifndef _key_H_#define _key_H_#define uchar unsigned char#define uint unsigned intsbit K1=P33;sbit K2=P34;sbit K3=P35;sbit LED1=P22;sbit LED2=P21;sbit LED3=P20;sbit JDQ1=P37;/溫度 濕度sbit JDQ2=P24

10、;/光線void delay1(uint a)/數(shù)碼管顯示部分延時函數(shù) unsigned int i; while( -a != 0) for(i = 0; i < 200; i+); /一個 ; 表示空語句,CPU空轉(zhuǎn)。 /i 從0加到125，CPU大概就耗時1毫秒 #endifDHT11:#ifndef _DHT11_H_ #define_DHT11_H_ #define uchar unsigned char #define uint unsigned int /*/ /* 引 腳 定 義 */ /*/ sbit DHT = P36; /管腳定義，DHT11總線輸入輸出； /*/

11、/* 變 量 定 義 */ /*/ uchar RH,RL,TH,TL; uchar data_byte; uchar Tem_Z,Tem_X,Hum_Z,Hum_X,Check; uint DHT11_num=0; void delays19ms()/12.000MHz unsigned char i, j, k; i = 1; j = 222; k = 197; do do while (-k); while (-j); while (-i); /延時ius void delay10us() unsigned char i; i = 27; while (-i); /*主機發(fā)出開始信號*/

12、 void DHT11_Start() DHT=1; delay10us(); DHT=0; delays19ms(); /保持電平時間大于18ms,延時20ms DHT=1; delay10us(); /延遲等待20-40us,延時20us delay10us(); delay10us(); delay10us(); DHT=1; /拉高等待DHT11響應(yīng) /DHT11接收一個字節(jié)數(shù)據(jù) uchar receive_data() uchar i,temp,count; data_byte=0; for(i=0;i<8;i+) count=2; while(!DHT)&&c

13、ount+); /等待50us低電平結(jié)束 delay10us(); /等待40us高電平，后判斷電平高低,高:DHT為1,低:DHT為0 delay10us(); delay10us(); delay10us(); temp=0; if(DHT=1) temp=1; /DHT為高:1,位為1 count=2; while(DHT)&&count+); /等待DHT高電平結(jié)束 if(count=1) break; /DHT為低:0,位為0 data_byte<<=1; /字節(jié)左移 data_byte|=temp; return data_byte; /返回讀取值 /D

14、HT11接收數(shù)據(jù) void Rec_DHT()/聲明Rec_DHT,DHT11接收數(shù)據(jù)函數(shù) uchar flag; uchar T_H,T_L,H_H,H_L,check,num_check; /定義采集參數(shù)中間變量 DHT11_Start(); /主機發(fā)出開始信號if(!DHT) /等待從機響應(yīng)信號輸出低電平 flag = 2; while(!DHT) && flag+); /判斷從機是否發(fā)出 80us 的低電平響應(yīng)信號是否結(jié)束 flag = 2; while(DHT && flag+); /判斷從機是否發(fā)出 80us 的高電平，若發(fā)出則開始采集數(shù)據(jù) H_H=

15、receive_data(); /采集濕度整數(shù)部分 H_L=receive_data(); /采集濕度小數(shù)部分 T_H=receive_data(); /采集溫度整數(shù)部分 T_L=receive_data(); /采集溫度小數(shù)部分 check=receive_data(); /采集校驗位 DHT = 1; num_check=H_H+H_L+T_H+T_L; if(num_check=check) /進行校核 Hum_Z = H_H; Hum_X = H_L; Tem_Z = T_H; Tem_X = T_L; unsigned char DHT11_Hum()/返回濕度整數(shù) unsigned

16、 char Get_back_num; Rec_DHT(); Get_back_num = Hum_Z ; return Get_back_num; unsigned char DHT11_Tem()/返回溫度整數(shù) unsigned char Get_back_num; Rec_DHT(); Get_back_num = Tem_Z ; return Get_back_num; #endifLCD1602:#ifndef _lcd1602_H_ #define_lcd1602_H_ #include <intrins.h>#define uchar unsigned char #d

17、efine uint unsigned intsbit rs= P25;sbit rw = P26;sbit ep = P27;code uchar LCDnumber="0123456789"/* - 函數(shù)名稱：delayus()； - 功能描述：延時1us左右 - 隸屬模塊：延時公共函數(shù)模塊 - 函數(shù)屬性：外部，用戶可調(diào)用 - 參數(shù)說明：uint a為1us的多少倍設(shè)置參數(shù) - 返回說明：無 */void delayus(uint a) /延時1us左右uchar b;for(;a>0;a-)for(b=12;b>0;b-);bit lcd_bz()bit

18、result;rs = 0;rw = 1;ep = 1;delayus(20);result = (bit)(P0 & 0x80);ep = 0;return result;void lcd_wcmd(unsigned char cmd)while(lcd_bz();/判斷LCD是否忙碌rs = 0;rw = 0;ep = 0;delayus(20);P0 = cmd;delayus(20);ep = 1;delayus(20);ep = 0;void lcd_wdat(unsigned char dat)while(lcd_bz();/判斷LCD是否忙碌rs = 1;rw = 0;e

19、p = 0;delayus(20);P0 = dat;delayus(20);ep = 1;delayus(20);ep = 0;/ 設(shè)置顯示位置(即寫入顯示地址)，x,y均從0開始 4行液晶顯示 void lcd_goto_xy(unsigned char x, unsigned char y) unsigned char p; / p為字符顯示位置,即DDRAM中的地址 if (y=0) p = 0x00 + x; / (0,0)顯示位置為0x00 if (y=1) p=0x40+x; / (0,1)顯示位置為0x40 if (y=2) p=0x10+x; / (0,2)顯示位置為0x10

20、 if (y=3) p = 0x50 + x; / (0,3)顯示位置為0x50 lcd_wcmd(p + 0x80); / 寫入顯示地址時DB7須為高電平,加0x80 void lcd_putc(unsigned char c) / 寫字符(傳入的參數(shù)實際為所需顯示字符的地址,即液晶字符產(chǎn)生器中字符的地址) rw = 0; / RW置0，狀態(tài)為寫 rs = 1; / RS置1，寫入數(shù)據(jù) lcd_wdat(c); void lcd_puts(unsigned char *s) / 寫字符串函數(shù) while(*s) lcd_wdat(*s); s+; /* 函數(shù)名稱: display_char*

21、 入口參數(shù)：x(unsigned char型),y(unsigned char型)，dat(unsigned char型)* 出口參數(shù)：無* 功能描述: 在具體位置顯示單個字符，x是列號，y是行號*/void lcd_xy_putc(unsigned char x,unsigned char y,unsigned char dat) lcd_goto_xy(x,y); lcd_wdat(dat);/* 函數(shù)名稱: display_string* 入口參數(shù)：x(unsigned char型),y(unsigned char型)，s(指針型)* 出口參數(shù)：無* 功能描述: 在具體位置顯示字符串，以

22、/0結(jié)束，x是列號，y是行號*/void lcd_xy_puts(unsigned char x,unsigned char y,unsigned char *s) lcd_goto_xy(x,y); while(*s) lcd_wdat(*s); s+; void lcd_number(unsigned char a) /變量數(shù)字顯示 rw = 0; / RW置0，狀態(tài)為寫 rs = 1; / RS置1，寫入數(shù)據(jù) lcd_wdat(LCDnumbera); void lcd_init()lcd_wcmd(0x38);delayus(5);lcd_wcmd(0x0c);delayus(5);lcd_wcmd(0x06);delayus(5);lcd_wcmd(0x01);delayus(5); #endifADC0804:#ifn