基于51单片机+12864中文液晶+GSM的智能家居报警系统

一个经典的单片机课程设计。

主要用到的模块和资源有：LCD12864中文液晶模块，at24c02存储器模块用于存用户密码，ds18b20温度传感器模块，ISD1802语音模块用于语音报警，红外接收探头，用于接收红外键盘的信息、矩阵键盘4*4、红外势热，用于检测人体，GSM模块用于发送报警短信或者拨打用户手机等。IO口输入输出、串口发送。

编译环境：Uv4 for c51

主要的文件有：

#ifndef _GLOBAL_#define _GLOBAL_#include<reg52.h>#define uint unsigned int#define uchar unsigned charsbit led=P2^0;sbit beep=P2^3;sbit Play=P2^4;sbit PlayL=P2^5;#include "key.h"#include "ds18b20.h"#include "12864.h"#include "at24c02.h"#include "app.h"#include "gsm.h"#include "hongwai.h"#include "heat.h"#endif

1、矩阵扫描程序：（分别扫描行列）

#include "key.h"#define key P1  bit getnew = 0; uchar keynum;code uchar keyout[4] = {0x7f,0xbf,0xdf,0xef}; uchar Input_Code(void){getnew = 0; key_input();if(getnew == 1){getnew = 0;switch (keynum){case 1:return 'D';break;case 2:return 'C';break;case 3:return 'B';break;case 4:return 'A';break;case 5:return '#';break;case 6:return '9';break;case 7:return '6';break;case 8:return '3';break;case 9:return '0';break;case 10:return '8';break;case 11:return '5';break;case 12:return '2';break;case 13:return '*';break;case 14:return '7';break;case 15:return '4';break;case 16:return '1';break;           default:return keynum;break;}}else return 0;}static void key_input(void) {uchar i;key = 0X0F;if((key|0XF0) != 0XFF){delay(10);if((key|0XF0) != 0XFF){for(i = 0;i < 4;i++){key = keyout[i];keynum = key;while((key|0XF0) != 0XFF);switch(keynum|0XF0){case 0XF7:keynum = (i*4+1);getnew = 1;return ;break;case 0XFB:keynum = (i*4+2);getnew = 1;return ;break;case 0XFD:keynum = (i*4+3);getnew = 1;return ;break;case 0XFE:keynum = (i*4+4);getnew = 1;return ;break;}}}}}

2、温度传感器读取温度

#include"DS18B20.h"int temp; float temp_get()  {  float tt;  uchar a,b;  temp_start();  temp_reset();  temp_delay(1);  temp_writebyte(0xcc);    temp_writebyte(0xbe);   a=temp_readbyte();  b=temp_readbyte();  temp=b;  temp<<=8;  temp=temp|a;  tt=temp*0.0625;  tt=(uint)(tt*10+0.5);  tt=tt/10;  return tt;}static void temp_delay(uint count)      {  uint i;  while(count)  {    i=200;    while(i>0)    i--;    count--;  }}static void temp_reset(void)      {  uint i;  DS=0;  i=103;  while(i>0)i--;  DS=1;  i=4;  while(i>0)i--;}static bit temp_readbit(void)     {   uint i;   bit dat;   DS=0;i++;    DS=1;i++;i++;   dat=DS;   i=8;while(i>0)i--;   return (dat);}static uchar temp_readbyte(void)   {  uchar i,j,dat;  dat=0;  for(i=1;i<=8;i++)  {    j=temp_readbit();    dat=(j<<7)|(dat>>1);     }  return(dat);}static void temp_writebyte(uchar dat)   {  uint i;  uchar j;  bit testb;  for(j=1;j<=8;j++)  {    testb=dat&0x01;    dat=dat>>1;    if(testb)         {      DS=0;      i++;i++;      DS=1;      i=8;while(i>0)i--;    }    else    {      DS=0;             i=8;while(i>0)i--;      DS=1;      i++;i++;    }  }}static void temp_start(void)   {  temp_reset();  temp_delay(1);  temp_writebyte(0xcc);    temp_writebyte(0x44); }//static void temp_readrom() //{//  uchar sn1,sn2;//  temp_reset();//  temp_delay(1);//  temp_writebyte(0x33);//  sn1=temp_readbyte();//  sn2=temp_readbyte();//}

3、12864液晶显示

#include "12864.h"sbit LCD_RS  =  P3^5;          sbit LCD_RW  =  P3^6;            sbit LCD_EN  =  P3^7;          sbit LCD_PSB =  P2^1;  #define delay_nop(); {_nop_();_nop_();_nop_();_nop_();};#define data_port P0void delay(uint ms){      uchar i;while(ms--){for(i=0;i<120;i++);}}void lcd_init(){  LCD_PSB = 1;          lcd_writecmd(0x34);       delay(5); lcd_writecmd(0x30);       delay(5); lcd_writecmd(0x0C);      delay(5); lcd_writecmd(0x01);       delay(5);}void lcd_clean(void){lcd_writecmd(0x01);      delay(5);}void lcd_show(uchar x, uchar y,uchar *cn) {uchar i = 0;lcd_pos(x,y);;    while(cn[i] != '\0')       lcd_writedata(cn[i++]);}bit lcd_busy() {                          bit result;LCD_RS = 0;LCD_RW = 1;LCD_EN = 1;delay_nop();result = (bit)(P0&0x80);LCD_EN = 0;return(result);  } void lcd_pos(uchar x,uchar y){                             uchar  pos;   if (y==0)     {y=0x80;}   else if (y==1)     {y=0x90;}   else if (y==2)     {y=0x88;}   else if (y==3)     {y=0x98;}   pos = x+y ;     lcd_writecmd(pos);    }void lcd_writecmd(uchar cmd){                          while(lcd_busy());LCD_RS = 0;LCD_RW = 0;LCD_EN = 0;_nop_();_nop_(); data_port = cmd;delay_nop();LCD_EN = 1;delay_nop();LCD_EN = 0;  }void lcd_writedata(uchar dat){                          while(lcd_busy());LCD_RS = 1;LCD_RW = 0;LCD_EN = 0;data_port = dat;delay_nop();LCD_EN = 1;delay_nop();LCD_EN = 0; }

4、红外键盘输入

/*Óõ½Òý½Å: 3.2Óõ½ÍâÉè: ¶¨Ê±Æ÷0 ¡¢ÍⲿÖÐ¶Ï 0Ïȵ÷ÓÃir_init()½øÐгõʼ»¯,ÔÙµ÷ÓÃir_get()µÃµ½ºìÍâ½ÓÊÕµÄÖµ*/#include "hongwai.h"uchar irtime;/*ÓÃÓÚ¼Æʱ*/uchar ir_data;/*ºìÍâ×îºóµÄµ½µÄÖµ*/uchar ircord[4];/*´æ·Å½âµÃµÄÂð*/uchar irdata[33];/*´æ·ÅºìÍâÂë*/static bit startflag = 0; /*ÊÇ·ñ¿ªÊ¼´¦Àí±ê־λ*/static bit getnew = 0; void HW_Init(void)/*ºìÍâ³õʼ»¯*/{timer0_init();EX0_init();}uchar HW_get(void)/*·µ»ØºìÍâµÃµ½µÄÖµ*/{if(getnew == 1){getnew = 0;switch (ir_data){case 0x16:return '0';break;case 0x0c:return '1';break;case 0x18:return '2';break;//2case 0x5e:return '3';break;//3case 0x08:return '4';break;//4case 0x1c:return '5';break;case 0x5a:return '6';break;case 0x42:return '7';break;case 0x52:return '8';break;case 0x4a:return '9';break;case 0x19:return '*';break;case 0x0d:return '#';break;           default:return ir_data;break;}}else return 0;}/*ÄÚ²¿º¯Êý*/static void timer0_init(void)/*¶¨Ê±Æ÷0³õʼ»¯*/{TMOD|=0x02;/*¶¨Ê±Æ÷0¹¤×÷·½Ê½2£¬TH0ÊÇÖØ×°Öµ£¬TL0ÊdzõÖµ*/TH0=0x00;/*ÖØÔØÖµ*/TL0=0x00; /*³õʼ»¯Öµ*/ET0=1;/*¿ªÖжÏ*/TR0=1;}static void EX0_init(void)/*ÍⲿÖжÏ0³õʼ»¯*/{IT0 = 1;/*Ö¸¶¨ÍⲿÖжÏ0ϽµÑØ´¥·¢£¬INT0 (P3.2)*/EX0 = 1;/*ʹÄÜÍⲿÖжÏ*/EA = 1;/*¿ª×ÜÖжÏ*/}static void ircordpro(void)/*ºìÍâÂëÖµ´¦Àíº¯Êý*/{  uchar i, j, k;uchar value; k=1; for(i=0;i<4;i++) /*´¦ÀíÒ»¶ÎºìÍâÂë4¸ö×Ö½Ú*/{for(j=1;j<=8;j++) /*´¦Àí1¸ö×Ö½Ú8λ*/{/*´óÓÚijֵΪ1£¬Õâ¸öºÍ¾§ÕñÓоø¶Ô¹Øϵ£¬ÕâÀïʹÓÃ12M¼ÆË㣬´ËÖµ¿ÉÒÔÓÐÒ»¶¨Îó²î*/if(irdata[k]>7)value|=0x80;if(j<8)value>>=1;k++;}ircord[i]=value;value=0;     }  if(ircord[2] == ~ircord[3]) { ir_data = ircord[2]; getnew = 1; }}/*Öжϴ¦Àíº¯Êý*/void tim0_isr (void) interrupt 1 using 1{irtime++;/*ÓÃÓÚ¼ÆÊý2¸öϽµÑØÖ®¼äµÄʱ¼ä*/}void EX0_ISR (void) interrupt 0/*ÍⲿÖжÏ0·þÎñº¯Êý*/{static uchar  i;             /*½ÓÊÕºìÍâÐźŴ¦Àí*/if(startflag)                         {if(irtime<63&&irtime>=33)i=0;/*Òýµ¼Âë TC9012µÄÍ·Â룬9ms+4.5ms*/irdata[i]=irtime;/*´æ´¢Ã¿¸öµçƽµÄ³ÖÐøʱ¼ä£¬ÓÃÓÚÒÔºóÅжÏÊÇ0»¹ÊÇ1*/irtime=0;i++;if(i==33){i=0;ircordpro();/*ºìÍâÂëÖµ´¦Àí*/}}else{irtime=0;startflag=1;}}

5、GSM发送短信

#include "gsm.h"/*********************************************************** º¯ÊýÃû³Æ£ºPrint_Char º¯Êý¹¦ÄÜ£º·¢Ë͵¥¸ö×Ö·û               Èë¿Ú²ÎÊý:ch      ³ö¿Ú²ÎÊý£ºÎÞ ***********************************************************/void Print_Char(uchar ch)//·¢Ë͵¥¸ö×Ö·û{SBUF=ch; //ËÍÈ뻺³åÇøwhile(!TI); //µÈ´ý·¢ËÍÍê±ÏTI=0; //Èí¼þÇåÁã}/*********************************************************** º¯ÊýÃû³Æ£ºPrint_Str º¯Êý¹¦ÄÜ£º·¢ËÍ×Ö·û´®               Èë¿Ú²ÎÊý:*str    ³ö¿Ú²ÎÊý£ºÎÞ ***********************************************************/void Print_Str(uchar *str1)//·¢ËÍ×Ö·û´®{unsigned char i = 0;while(str1[i] != '\0'){   SBUF = str1[i];   while(!TI);     // µÈÌØÊý¾Ý´«ËÍ   TI = 0;      // Çå³ýÊý¾Ý´«ËͱêÖ¾   i++;      // ÏÂÒ»¸ö×Ö·û}} /*********************************************************** º¯ÊýÃû³Æ£ºIni_UART º¯Êý¹¦ÄÜ£º´®¿Ú³õʼ»¯¡¢¶¨Ê±Æ÷³õʼ»¯               Èë¿Ú²ÎÊý:ÎÞ     ³ö¿Ú²ÎÊý£ºÎÞ ***********************************************************/ void Init_UART(void)//´®¿Ú³õʼ»¯¡¢¶¨Ê±Æ÷³õʼ»¯{TMOD=0x20;TH1=0xfa;TL1=0xfa;     //UART²¨ÌØÂÊÉèÖÃ:9600 TR1=1;SM0=0;SM1=1;REN=1;EA=1;PCON=0x80;} void Send_Message(void){lcd_clean();lcd_show(0,0,"    °²È«¾¯¸æ");lcd_show(0,1,"±¨¾¯¶ÌÐÅ·¢ËÍÖÐ..");Print_Str("AT+CNMI=2,1");Print_Str("\r\n");delay(200);Print_Str("AT+CMGF=1");Print_Str("\r\n");delay(200);Print_Str("AT+CMGS=\"1111111111\"");//phone numberPrint_Str("\r\n");delay(1000);Print_Str("Smart House System: Warning, your house is under danger! ");Print_Char(0x1a);    //·¢ËͶÌÐÅ  delay(10);lcd_show(0,2,"    ÒÑ·¢ËÍ");delay(2000);lcd_clean();}//Print_Str("AT+CPMS=\"SM\"");//delay(1000);

6、AT24C02存储器芯片（IIC接口）

#include "at24c02.h"sbit sda=P2^7;                         sbit scl=P2^6;void nop(){_nop_();_nop_();}//void delay1(unsigned int m)//{//unsigned int n;//  for(n=0;n<m;n++);//}void AT24C02_Init()  {scl=1;nop();sda=1;nop();}void start()       {sda=1;nop();scl=1;nop();sda=0;nop();scl=0;nop();}void stop()        {sda=0;nop();scl=1;nop();sda=1;nop();}void writebyte(unsigned char j)  {unsigned char i,temp;   temp=j;   for (i=0;i<8;i++)   {   temp=temp<<1;   scl=0;   nop();   sda=CY;   nop();   scl=1;   nop();   }   scl=0;   nop();   sda=1;   nop();}unsigned char readbyte()   {   unsigned char i,j,k=0;   scl=0; nop(); sda=1;   for (i=0;i<8;i++)   {  nop(); scl=1; nop();      if(sda==1) j=1;      elsej=0;      k=(k<<1)|j;  scl=0;}   nop();return(k);}void clock()         {   unsigned char i=0;   scl=1;   nop();   while((sda==1)&&(i<255))     i++;   scl=0;   nop();}uchar read24c02( uchar address){   unsigned char i;   start();   writebyte(0xa0);   clock();   writebyte(address);   clock();   start();   writebyte(0xa1);   clock();   i=readbyte();   stop();   delay(10);   return(i);}//void write24c02(unsigned char address,unsigned char info)//{//   start();//   writebyte(0xa0);//   clock();//   writebyte(address);//   clock();//   writebyte(info);//   clock();//   stop();//   delay(500); //}

主要业务逻辑函数app.c

#include "app.h"uchar CodeInput[5]=0;//keyborad inputuchar CodeRead[5];//at24c02 read//uint ErrorTime = 0;//input wrong codeuint Lock_STA=1;/*ϵͳ¹¤×÷½çÃæ*/void Main_Menu(void){lcd_show(0,0,"ÖÇÄܼҾӱ¨¾¯ÏµÍ³");if(Lock_STA){lcd_show(0,1,"    ¹¤×÷ÖÐ..");lcd_show(0,2,"°´ÈÎÒâ¼üÊäÈëÃÜÂë: ");}}/*Óû§Ö÷½çÃæ*/void Wel_Menu(){uchar key_temp='0';uint cnt=0;Lock_STA=0;//ÄܽøÈ뻶ӭҳÃ棬֤Ã÷ÒѾ­½âËølcd_clean();lcd_show(0,0,"    ÌøתÖÐ..");delay(800);lcd_clean();lcd_show(1,0,"Welcome Home");lcd_show(0,1,"ζȣº");lcd_show(4,1,"¡æ");//lcd_show(0,1,"°´* ¼üÍ˳ö");//lcd_show(0,2,"°´D ¼ü·¢ËͶÌÐÅ");while(1){if(cnt%100 == 0)/*ÿ1 ÃëË¢Ò»´ÎζÈ*/{cnt=0;Get_Temperture();}cnt++;delay(10);lcd_show(0,2,"°´* ¼üÖØÐÂÉÏËø");if(Input_Code()=='*') {Lock_STA=1;break;}//key_temp=Input_Code();//||HW_get();//switch(key_temp){//case '1': ;break;//code Adjust//case '*': Lock_STA=1;return;break;//lock again//case '#': ;break;//case 'A': ;break;//default: break;//}}lcd_show(3,3,"ÒÑËø¶¨");delay(500);}/*¶ÁȡζȲ¢ÏÔʾ*/void Get_Temperture(){uchar temp_num = 0;/*ÓÃÓÚ´¢´æζÈÖµ*/uchar tempstr[3] = 0;/*ÓÃÓÚ´¢´æζÈÖµ×Ö·û´®*/temp_num = temp_get();tempstr[0] = (temp_num/10)+'0';tempstr[1] = (temp_num%10)+'0';tempstr[2] = '\0';lcd_show(3,1,tempstr);}/*ÊäÈëÃÜÂ룬ÒÔ#ºÅ¼ü½áÊø*/void Code_Input(){uchar key_temp='0',tempcode[2]=0;uint cnt=0,count=0;while(key_temp!='#'){if(((key_temp=Input_Code())!=0)||((key_temp=HW_get())!=0)){tempcode[0]=key_temp;tempcode[1]='\0';lcd_show(cnt,3,tempcode);CodeInput[cnt]=key_temp;cnt++;if(cnt>=8)cnt=0;led=~led;}}cnt--;CodeInput[cnt]='\0';//lcd_show(4,3,CodeInput);}//void Code_Init()//{//uint cnt_24=0;//for(cnt_24=0;cnt_24<4;cnt_24++){//дÈë³õʼÃÜÂë//write24c02(cnt_24+16,'1');//}//}void Read_Code(){uint cnt_24,count=0;for(cnt_24=0;cnt_24<4;cnt_24++){//´Ó´æ´¢Æ÷¶ÁÃÜÂëCodeRead[count]=read24c02(cnt_24+16);count++;}CodeRead[count]='\0';//lcd_show(0,3,CodeRead);}//Input Code Accepted, return 1;int  Code_Judge(){//CodeRead:´Ó´æ´¢Æ÷¶Áµ½µÄÃÜÂë //CodeInput:´Ó¼üÅÌÊäÈëµÄÃÜÂëuint i;Read_Code();for(i=0;i<sizeof(CodeRead);i++){if(CodeInput[i]==CodeRead[i])continue;else break;}if(i>=sizeof(CodeRead))return 1;elsereturn 0;}void USER_Ammited(){uint ErrorCnt=0;while(1){lcd_clean();Main_Menu();//main menu Code_Input();//key in codeif(Code_Judge()){//ÃÜÂëÑéÖ¤break;}else{ErrorCnt++;if(ErrorCnt>=3) {Vol_Display();Send_Message();return;}//ÃÜÂëÊäÈë´ÎÊý³¬¹ý3´Î£¬·¢Ëͱ¨¾¯¶ÌÐÅlcd_show(0,2,"ÃÜÂë´íÎó£¬ÇëÖØÊÔ");beep = 0;delay(2000);beep = ~beep;}}Wel_Menu();//enter welcome menu}void Vol_Display(){Play=1;Play=0;Play=0;}void Heat_Warning(){//uchar temp_num = 0;temp_num = temp_get();if(temp_num=='50'||temp_num=='51'||temp_num=='52')Send_Message();}