单片机万年历（LCD12864、DS18B20、DS1302）

一、简介

此电路由AT89C51最小电路板和LCD12864显示模块、DS18B20温度模块、DS1302时钟模块组成。

主要的功能是：显示实时的时间和当前的温度。

二、运行效果

三、部分代码

/*想要更多项目私wo!!!*/

#include

#include

#include

#include

unsigned char j[8];

sbit KEY1=P3^2;

sbit KEY2=P3^3;

sbit KEY3=P3^4;

sbit LED1=P3^5;

sbit LED2=P3^6;

sbit LED3=P3^7;

uchar time0_count; //time0¼ÆÊýÆ÷

void delay10(void)

{

unsigned char i,j;

for(i=0;i<255;i++)

for(j=0;j<200;j++);

}

unsigned char conver(unsigned char a,unsigned char b,unsigned char c)

{

if((a&0x0f)==0x0a) a=a+6;

  if(a==b)  a=c;

return a;

}

main() 

{

bit flag_2=1;

bit flag_3=1;

bit flag_4=1;

int i;  

char a;    

unsigned  char  choose=0x01;

InitLCD();   //³õʼ»¯LCD12864

for(i=0;i<13;i++)

{

ShowNumber(6,i*8+16,i+14);

}

Show32x32(0,0,0);

ShowChina(4,0,7);

ShowChina(4,16,8);

ShowChina(4,32,9);

ShowChina(4,48,10);

ShowNumber(4,64,10);   //ÏÔʾζȸßλ

read_serial(j);   //¶ÁÈ¡DS1302µÄʱ¼ä

  ShowNumber(2,32,j[2]>>4&0x03);

ShowNumber(2,40, j[2]&0x0f);

ShowChina(2,48,3);

ShowNumber(2,64,j[1]>>4&0x07);

ShowNumber(2,72, j[1]&0x0f);

ShowChina(2,80,4);

ShowNumber(2,96,j[0]>>4&0x07);

ShowNumber(2,104, j[0]&0x0f);

ShowChina(2,112,5);

  ShowNumber(0,32,j[6]>>4&0x0f);

ShowNumber(0,40, j[6]&0x0f);

ShowChina(0,48,0);

ShowNumber(0,64,j[4]>>4&0x01);

ShowNumber(0,72, j[4]&0x0f);

ShowChina(0,80,1);

ShowNumber(0,96,j[3]>>4&0x03);

ShowNumber(0,104, j[3]&0x0f);

ShowChina(0,112,2);

ShowChina(4,104,6); 

ShowNumber(4,120,j[5]-1&0x07);

while(1)

{

if(flag_2==1)

read_serial(j);   //¶ÁÈ¡DS1302µÄʱ¼ä

else 

write_date_time(j);

a=Read_Temperature();   //¶ÁÈ¡DS18B20µÄζÈ

if(a<0)   //´¦ÀíζÈÕý¸º

{

a = (-1)*a; // È¡²¹

ShowNumber(4,72,11);   //ÏÔʾζÈÕý¸º

}

else 

{ 

ShowNumber(4,72,12);   //ÏÔʾζÈÕý¸º

}

ShowNumber(4,80,a/100);   //ÏÔʾζȸßλ

ShowNumber(4,88,a/10%10);  //ÏÔʾζÈÖÐλ

ShowNumber(4,96,a%10);     //ÏÔʾζȵÍλ

LED3=1;LED2=0;LED1=1;

if(a>40){LED3=0;LED2=1;LED1=1;}

if(a<30){LED3=1;LED2=1;LED1=0;}

if(KEY1==0)   //°´¼ü1--´¦ÀíÉ趨ʱ¼äºÍ·µ»Ø

{

delay10();

if(KEY1==1)

{

delay10();

flag_2=~flag_2;

}

}

if(KEY2==0)   //°´¼ü2--´¦ÀíÑ¡ÔñÉ趨ʱ¼äµÄÏîÄ¿

{ 

delay10();

if(KEY2==1)

{

delay10();

choose++;

if(choose==8)

choose=0x01;

}

}

if(KEY3==0)   //°´¼ü3--´¦ÀíÉ趨ʱ¼äºÍ·µ»Ø

{ delay10();

if(KEY3==1)

{

delay10(); 

switch(choose)

{

case 1: j[6]++; j[6]=conver(j[6],0xa0,0x00);break;//Äê

case 2: j[5]++; j[5]=conver(j[5],0x07,0x00);break;//ÖÜ

case 3: j[4]++; j[4]=conver(j[4],0x13,0x01);break;//ÔÂ

case 4: j[3]++; j[3]=conver(j[3],0x32,0x01);break;//ÈÕ

case 5: j[2]++; j[2]=conver(j[2],0x24,0x00);break;//ʱ

case 6: j[1]++; j[1]=conver(j[1],0x60,0x00);break;//·Ö

case 7: j[0]++; j[0]=conver(j[0],0x60,0x00);break;//Ãë

}

}

}

if(flag_2==1)

read_serial(j);   //¶ÁÈ¡DS1302µÄʱ¼ä

else 

write_date_time(j);

//ʱ·ÖÃë

ShowNumber(2,32,j[2]>>4&0x03);

ShowNumber(2,40, j[2]&0x0f);

ShowChina(2,48,3);

ShowNumber(2,64,j[1]>>4&0x07);

ShowNumber(2,72, j[1]&0x0f);

ShowChina(2,80,4);

ShowNumber(2,96,j[0]>>4&0x07);

ShowNumber(2,104, j[0]&0x0f);

ShowChina(2,112,5);

// ÄêÔÂÈÕ

ShowNumber(0,32,j[6]>>4&0x0f);

ShowNumber(0,40, j[6]&0x0f);

ShowChina(0,48,0);

ShowNumber(0,64,j[4]>>4&0x01);

ShowNumber(0,72, j[4]&0x0f);

ShowChina(0,80,1);

ShowNumber(0,96,j[3]>>4&0x03);

ShowNumber(0,104, j[3]&0x0f);

ShowChina(0,112,2);

ShowChina(4,104,6); 

ShowNumber(4,120,j[5]-1&0x07);

}

}