51单片机密码锁程序

1、自己做的基于单片机的密码锁设计（c语言设计）时间：2011-08-16 21:08:01 来源： 作者：自己做的基于单片机的密码锁设计（c语言设计）系统说明 该系统如图所示使用了80C51单片机、普通键盘、排阻、1602液晶。该系统的功能： 该系统输入正确的密码LED灯会亮（其实就是很多操作都可以，用LED只是代表作用，主要是操作简单，效果明显。）系统可以修改密码；（系统断电后重启后必须用初始密码（初始密码是：000000）重新改密，当然修改的密码可以与掉电前的一样。）具体操作： 系统开机时显示请输入密码的提示,直接输入密码#键确认系统会自动提醒密码错误，数秒后系统会再次提醒重新输密码。在系统

2、提醒输入密码的界面可以按*键修改密码，系统会提醒输入两次密码，并且会检查两次密码是否相同。同则修改成功。否则在数秒后可以重新按*键修改。在改密前（就是按了*键后系统）会提醒身份识别，请输入旧密码，系统判断旧密码正确方可更改密码。源程序#include#define uchar unsigned char#define uint unsigned intsbit lcdrs=P30;sbit lcdrw=P31;sbit lcden=P32;sbit h1=P10;sbit h2=P11;sbit h3=P12;sbit sa=P13;sbit sb=P14;sbit sc=P15;sbit s

3、d=P16;sbit kd=P37;uchar code table= PLEASE INPUT ;uchar code table1=CODE: ;uchar code table2= *WIN*;uchar code table3= PLEASE AFFIRM;uchar code table4= *FAIL*;uchar code table5= MODIFICATION;uchar code table6= IDENTITY LIMITS ;uchar unm,M1,M2,M3,M4,M5,M6,sex,k1,k2,k3,k4,k5,k6,flge,flge1;uchar q1,q2,

4、q3,q4,q5,q6,w1,w2,w3,w4,w5,w6,g;void delay(int z)int x,y;for(x=z;x0;x-) for(y=110;y0;y-);void delay1(int z)int x,y;for(x=z;x0;x-) for(y=20000;y0;y-);void writen_com(uchar com) /1602写命令lcdrs=0;P0=com;delay(1);lcden=1;delay(1);lcden=0;void writen_dat(uchar dat) /1602写数据lcdrs=1;P0=dat;delay(1);lcden=1;

5、delay(1);lcden=0;void main();void cheak_mima() /检查第二次确认密码是否与第一次相同if(q1=w1)if(q2=w2) if(q3=w3) if(q4=w4) if(q5=w5) if(q6=w6) writen_com(0x01); writen_com(0x0f); writen_com(0x06); writen_com(0x80); for(unm=0;unm14;unm+) writen_dat(table5unm); delay(5); writen_com(0x80+0x40+1); for(unm=0;unm14;unm+) wr

6、iten_dat(table2unm); delay(5); M1=w1;M2=w2;M3=w3;M4=w4;M5=w5;M6=w6;delay1(6);main(); /*-*/密码确认错误返回 writen_com(0x01); writen_com(0x80); for(unm=0;unm14;unm+) writen_dat(table4unm); delay(5); delay1(6); main(); writen_com(0x01); writen_com(0x80); for(unm=0;unm14;unm+) writen_dat(table4unm); delay(5);

7、delay1(6); main(); writen_com(0x01); writen_com(0x80); for(unm=0;unm14;unm+) writen_dat(table4unm); delay(5); delay1(6); main(); writen_com(0x01); writen_com(0x80); for(unm=0;unm14;unm+) writen_dat(table4unm); delay(5); delay1(6); main(); writen_com(0x01); writen_com(0x80); for(unm=0;unm14;unm+) wri

8、ten_dat(table4unm); delay(5); delay1(6); main(); writen_com(0x01); writen_com(0x80); for(unm=0;unm14;unm+) writen_dat(table4unm); delay(5); delay1(6); main();/*-*/ /第二次确认密码void affirm_code()P1=0x07;if(P1!=0x07) delay(1); if(P1!=0x07) P1=0x77; if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(0x80+0

9、x45+sex); writen_dat(*); switch(sex) case 0:w1=1;break; case 1:w2=1;break; case 2:w3=1;break; case 3:w4=1;break; case 4:w5=1;break; case 5:w6=1;break; sex+; if(h2=0) delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:w1=2;break; case 1:w2=2;break; case 2:w3=2

10、;break; case 3:w4=2;break; case 4:w5=2;break; case 5:w6=2;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:w1=3;break; case 1:w2=3;break; case 2:w3=3;break; case 3:w4=3;break; case 4:w5=3;break; case 5:w6=3;break; sex+; /*-*/ P1=0x6f;

11、if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:w1=4;break; case 1:w2=4;break; case 2:w3=4;break; case 3:w4=4;break; case 4:w5=4;break; case 5:w6=4;break; sex+; if(h2=0) delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); swit

12、ch(sex) case 0:w1=5;break; case 1:w2=5;break; case 2:w3=5;break; case 3:w4=5;break; case 4:w5=5;break; case 5:w6=5;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:w1=6;break; case 1:w2=6;break; case 2:w3=6;break; case 3:w4=6;break; ca

13、se 4:w5=6;break; case 5:w6=6;break; sex+; /*-*/ P1=0x5f; if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:w1=7;break; case 1:w2=7;break; case 2:w3=7;break; case 3:w4=7;break; case 4:w5=7;break; case 5:w6=7;break; sex+; if(h2=0) delay(1); if(h2=0) w

14、hile(!h2); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:w1=8;break; case 1:w2=8;break; case 2:w3=8;break; case 3:w4=8;break; case 4:w5=8;break; case 5:w6=8;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:w1=9;break; ca

15、se 1:w2=9;break; case 2:w3=9;break; case 3:w4=9;break; case 4:w5=9;break; case 5:w6=9;break; sex+; /*-*/ P1=0x3f; if(h2=0)/0键扫描 delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:w1=0;break; case 1:w2=0;break; case 2:w3=0;break; case 3:w4=0;break; case 4:w5=0

16、;break; case 5:w6=0;break; sex+; if(h3=0) /#键扫描 delay(1); if(h3=0) while(!h3); while(!flge1) cheak_mima(); /*-*/ /修改密码自己做的基于单片机的密码锁设计（c语言设计）时间：2011-08-16 21:08:01 来源： 作者：void set_mima()P1=0x07;if(P1!=0x07) delay(1); if(P1!=0x07) P1=0x77; if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(0x80+0x45+s

17、ex); writen_dat(*); switch(sex) case 0:q1=1;break; case 1:q2=1;break; case 2:q3=1;break; case 3:q4=1;break; case 4:q5=1;break; case 5:q6=1;break; sex+; if(h2=0) delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:q1=2;break; case 1:q2=2;break; case 2:q3=2;brea

18、k; case 3:q4=2;break; case 4:q5=2;break; case 5:q6=2;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:q1=3;break; case 1:q2=3;break; case 2:q3=3;break; case 3:q4=3;break; case 4:q5=3;break; case 5:q6=3;break; sex+; P1=0x6f; if(h1=0) de

19、lay(1); if(h1=0) while(!h1); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:q1=4;break; case 1:q2=4;break; case 2:q3=4;break; case 3:q4=4;break; case 4:q5=4;break; case 5:q6=4;break; sex+; if(h2=0) delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) cas

20、e 0:q1=5;break; case 1:q2=5;break; case 2:q3=5;break; case 3:q4=5;break; case 4:q5=5;break; case 5:q6=5;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:q1=6;break; case 1:q2=6;break; case 2:q3=6;break; case 3:q4=6;break; case 4:q5=6;b

21、reak; case 5:q6=6;break; sex+; P1=0x5f; if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:q1=7;break; case 1:q2=7;break; case 2:q3=7;break; case 3:q4=7;break; case 4:q5=7;break; case 5:q6=7;break; sex+; if(h2=0) delay(1); if(h2=0) while(!h2); writen

22、_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:q1=8;break; case 1:q2=8;break; case 2:q3=8;break; case 3:q4=8;break; case 4:q5=8;break; case 5:q6=8;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:q1=9;break; case 1:q2=9;break;

23、case 2:q3=9;break; case 3:q4=9;break; case 4:q5=9;break; case 5:q6=9;break; sex+; P1=0x3f; if(h2=0)/0键扫描 delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:q1=0;break; case 1:q2=0;break; case 2:q3=0;break; case 3:q4=0;break; case 4:q5=0;break; case 5:q6=0;bre

24、ak; sex+; if(h3=0) /#键扫描 delay(1); if(h3=0) while(!h3); writen_com(0x01); writen_com(0x0f); writen_com(0x06); writen_com(0x80); for(unm=0;unm14;unm+) writen_dat(table3unm); delay(5); writen_com(0x80+0x40); for(unm=0;unm5;unm+) writen_dat(table1unm); delay(5); sex=0; while(!flge1) affirm_code(); void

25、 init();void cheak_identity2()if(k1=M1) if(k2=M2) if(k3=M3) if(k4=M4) if(k5=M5) if(k6=M6) sex=0;init(); while(!flge1)set_mima(); writen_com(0x01);writen_com(0x0c);writen_com(0x06);writen_com(0x80);for(unm=0;unm14;unm+) writen_dat(table4unm); delay(5); delay1(6);main(); writen_com(0x01);writen_com(0x

26、0c);writen_com(0x06);writen_com(0x80);for(unm=0;unm14;unm+) writen_dat(table4unm); delay(5); delay1(6);main();writen_com(0x01);writen_com(0x0c);writen_com(0x06);writen_com(0x80);for(unm=0;unm14;unm+) writen_dat(table4unm); delay(5); delay1(6);main(); writen_com(0x01);writen_com(0x0c);writen_com(0x06

27、);writen_com(0x80);for(unm=0;unm14;unm+) writen_dat(table4unm); delay(5);delay1(6);main(); writen_com(0x01);writen_com(0x0c);writen_com(0x06);writen_com(0x80);for(unm=0;unm14;unm+) writen_dat(table4unm); delay(5);delay1(6);main();void cheak_identity()P1=0x07;if(P1!=0x07) delay(1); if(P1!=0x07) P1=0x

28、77; if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=1;break; case 1:k2=1;break; case 2:k3=1;break; case 3:k4=1;break; case 4:k5=1;break; case 5:k6=1;break; sex+; if(h2=0) delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*);

29、switch(sex) case 0:k1=2;break; case 1:k2=2;break; case 2:k3=2;break; case 3:k4=2;break; case 4:k5=2;break; case 5:k6=2;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=3;break; case 1:k2=3;break; case 2:k3=3;break; case 3:k4=3;break

30、; case 4:k5=3;break; case 5:k6=3;break; sex+; /*-*/P1=0x6f; if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=4;break; case 1:k2=4;break; case 2:k3=4;break; case 3:k4=4;break; case 4:k5=4;break; case 5:k6=4;break; sex+; if(h2=0) delay(1); if(h2=0

31、) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=5;break; case 1:k2=5;break; case 2:k3=5;break; case 3:k4=5;break; case 4:k5=5;break; case 5:k6=5;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=6;break;

32、 case 1:k2=6;break; case 2:k3=6;break; case 3:k4=6;break; case 4:k5=6;break; case 5:k6=6;break; sex+; /*-*/ P1=0x5f; if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=7;break; case 1:k2=7;break; case 2:k3=7;break; case 3:k4=7;break; case 4:k5=7;b

33、reak; case 5:k6=7;break; sex+; if(h2=0) delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=8;break; case 1:k2=8;break; case 2:k3=8;break; case 3:k4=8;break; case 4:k5=8;break; case 5:k6=8;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80

34、+0x45+sex); writen_dat(*); switch(sex) case 0:k1=9;break; case 1:k2=9;break; case 2:k3=9;break; case 3:k4=9;break; case 4:k5=9;break; case 5:k6=9;break; sex+; /*-*/P1=0x3f; if(h2=0)/0键扫描 delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=0;break; case 1:k2

35、=0;break; case 2:k3=0;break; case 3:k4=0;break; case 4:k5=0;break; case 5:k6=0;break; sex+; if(h3=0) /#键扫描 delay(1); if(h3=0) while(!h3); while(!flge1) cheak_identity2(); /*-*/ /键盘扫描void keyscan()P1=0x07;if(P1!=0x07) delay(1); if(P1!=0x07) P1=0x77; if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(

36、0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=1;break; case 1:k2=1;break; case 2:k3=1;break; case 3:k4=1;break; case 4:k5=1;break; case 5:k6=1;break; sex+; if(h2=0) delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=2;break; case 1:k2=2;break; case

37、2:k3=2;break; case 3:k4=2;break; case 4:k5=2;break; case 5:k6=2;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=3;break; case 1:k2=3;break; case 2:k3=3;break; case 3:k4=3;break; case 4:k5=3;break; case 5:k6=3;break; sex+; P1=0x6f;

38、if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=4;break; case 1:k2=4;break; case 2:k3=4;break; case 3:k4=4;break; case 4:k5=4;break; case 5:k6=4;break; sex+; if(h2=0) delay(1); if(h2=0) while(!h2); writen_com(0x80+0x45+sex); writen_dat(*); swit

39、ch(sex) case 0:k1=5;break; case 1:k2=5;break; case 2:k3=5;break; case 3:k4=5;break; case 4:k5=5;break; case 5:k6=5;break; sex+; if(h3=0) delay(1); if(h3=0) while(!h3); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=6;break; case 1:k2=6;break; case 2:k3=6;break; case 3:k4=6;break; case 4:k5=6;break; case 5:k6=6;break; sex+; /*-*/ P1=0x5f; if(h1=0) delay(1); if(h1=0) while(!h1); writen_com(0x80+0x45+sex); writen_dat(*); switch(sex) case 0:k1=7;break; case 1:k2=7;break; case 2:k3=7;break; case 3:k4=7;break; case 4:k5=7;break; case 5:k6=7;break; sex+; if(h2=0) delay(1)