目录
一、主要功能
1、16*16点阵屏幕显示
2、138芯片和595芯片
3、按键切换左右移动，暂停
二、使用步骤
LED点阵屏是51单片机项目中常用的显示设备，通过控制LED的亮灭组合实现文字、图形和动画显示。
三、硬件资源
1、51单片机核心模块
2、按键模块
3、16*16点阵屏
四、软件设计
#include<reg51.h>//头文件
sbit shcp=P1^2;//数据输入时钟线 595的11脚
sbit stcp=P1^1;//输出存储器锁存时钟线 595的12脚
sbit ds=P1^0;//数据线 595的14脚
sbit s1=P3^1;//按下暂停再暂按继续
sbit s2=P3^2;//按下方向取反
bit fx;//方向切换
sbit IR = P3^2;
unsigned char N[4]; //识别码，操作码存放
unsigned char X1,X2,X3,X4;
unsigned char alt;//数据移动定时时间
unsigned int net;//控制显示的字符
unsigned char zi=8;//显示字数
unsigned int zong;//总字符 （所有的字数+1）*32 字数指的是汉字，字母、数字两个算一个数字
unsigned char code tab[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*先送两个空字节用于缓冲*/
0x00,0x01,0x02,0x02,0x42,0x04,0x42,0x08,0x42,0x30,0x43,0xC0,0x7E,0x00,0x42,0x00,
0x43,0xFC,0x42,0x02,0x42,0x02,0x42,0x02,0x02,0x02,0x02,0x0E,0x00,0x00,0x00,0x00,/*"无",0*/
0x00,0x80,0x07,0x00,0x00,0x00,0xFF,0xFF,0x08,0x00,0x04,0x01,0x08,0x06,0x08,0x38,
0xFF,0xC0,0x08,0x00,0x0F,0xFC,0x88,0x02,0x68,0x02,0x08,0x02,0x08,0x1E,0x00,0x00,/*"忧",1*/
0x00,0x08,0x00,0x08,0x1F,0xC8,0x92,0x48,0x52,0x48,0x32,0x48,0x12,0x48,0x1F,0xFF,
0x12,0x48,0x32,0x48,0x52,0x48,0x92,0x48,0x1F,0xC8,0x00,0x08,0x00,0x08,0x00,0x00,/*"单",2*/
0x00,0x00,0x00,0x01,0x00,0x06,0x7F,0xF8,0x04,0x40,0x04,0x40,0x04,0x40,0x04,0x40,
0x04,0x40,0xFC,0x40,0x04,0x7F,0x04,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00,0x00,/*"片",3*/
0x08,0x20,0x08,0xC0,0x0B,0x00,0xFF,0xFF,0x09,0x00,0x08,0xC1,0x00,0x06,0x7F,0xF8,
0x40,0x00,0x40,0x00,0x40,0x00,0x7F,0xFC,0x00,0x02,0x00,0x02,0x00,0x1E,0x00,0x00,/*"机",4*/
0x00,0x00,0x00,0x00,0x00,0x6C,0x00,0x6C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"：",5*/
0x08,0x04,0x0F,0xFC,0x00,0x24,0x00,0x60,0x01,0x94,0x01,0x0C,0x01,0x04,0x00,0x00,/*"k",6*/
0x00,0x00,0x01,0x04,0x19,0x04,0x19,0xFC,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00,/*"i",7*/
0x00,0x00,0x00,0xF8,0x01,0x04,0x01,0x04,0x01,0x04,0x09,0x08,0x0F,0xFC,0x00,0x04,/*"d",8*/
0x01,0x01,0x01,0xFF,0x00,0x89,0x01,0x04,0x01,0x04,0x00,0x88,0x00,0x70,0x00,0x00,/*"p",9*/
0x00,0x00,0x00,0x98,0x01,0x24,0x01,0x24,0x01,0x48,0x00,0xFC,0x00,0x04,0x00,0x00,/*"a",10*/
0x01,0x04,0x01,0x04,0x01,0xFC,0x00,0x84,0x01,0x04,0x01,0x00,0x01,0x80,0x00,0x00,/*"r",11*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
unsigned char code tab1[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x01,0x04,0x01,0x04,0x01,0xFC,0x00,0x84,0x01,0x04,0x01,0x00,0x01,0x80,0x00,0x00,/*"r",0*/
0x00,0x00,0x00,0x98,0x01,0x24,0x01,0x24,0x01,0x48,0x00,0xFC,0x00,0x04,0x00,0x00,/*"a",1*/
0x01,0x01,0x01,0xFF,0x00,0x89,0x01,0x04,0x01,0x04,0x00,0x88,0x00,0x70,0x00,0x00,/*"p",2*/
0x00,0x00,0x00,0xF8,0x01,0x04,0x01,0x04,0x01,0x04,0x09,0x08,0x0F,0xFC,0x00,0x04,/*"d",3*/
0x00,0x00,0x01,0x04,0x19,0x04,0x19,0xFC,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00,/*"i",4*/
0x08,0x04,0x0F,0xFC,0x00,0x24,0x00,0x60,0x01,0x94,0x01,0x0C,0x01,0x04,0x00,0x00,/*"k",5*/
0x00,0x00,0x00,0x00,0x00,0x6C,0x00,0x6C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"：",6*/
0x08,0x20,0x08,0xC0,0x0B,0x00,0xFF,0xFF,0x09,0x00,0x08,0xC1,0x00,0x06,0x7F,0xF8,
0x40,0x00,0x40,0x00,0x40,0x00,0x7F,0xFC,0x00,0x02,0x00,0x02,0x00,0x1E,0x00,0x00,/*"机",7*/
0x00,0x00,0x00,0x01,0x00,0x06,0x7F,0xF8,0x04,0x40,0x04,0x40,0x04,0x40,0x04,0x40,
0x04,0x40,0xFC,0x40,0x04,0x7F,0x04,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00,0x00,/*"片",8*/
0x00,0x08,0x00,0x08,0x1F,0xC8,0x92,0x48,0x52,0x48,0x32,0x48,0x12,0x48,0x1F,0xFF,
0x12,0x48,0x32,0x48,0x52,0x48,0x92,0x48,0x1F,0xC8,0x00,0x08,0x00,0x08,0x00,0x00,/*"单",9*/
0x00,0x80,0x07,0x00,0x00,0x00,0xFF,0xFF,0x08,0x00,0x04,0x01,0x08,0x06,0x08,0x38,
0xFF,0xC0,0x08,0x00,0x0F,0xFC,0x88,0x02,0x68,0x02,0x08,0x02,0x08,0x1E,0x00,0x00,/*"忧",10*/
0x00,0x01,0x02,0x02,0x42,0x04,0x42,0x08,0x42,0x30,0x43,0xC0,0x7E,0x00,0x42,0x00,
0x43,0xFC,0x42,0x02,0x42,0x02,0x42,0x02,0x02,0x02,0x02,0x0E,0x00,0x00,0x00,0x00,/*"无",11*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
void delay(unsigned int z)//延时子函数
{
unsigned char x;
for(;z>0;z--)
for(x=110;x>0;x--);
}
void main() //主函数
{
char i,aa;
TMOD=0x01;//定时器0 模式1 16位定时模式
TH0=(65536-10000)/256;//定时10.000ms
TL0=(65536-10000)%256;
ET0=1;//使能定时器0
EA=1;//开启总中断
TR0=1;//开始计数
zong=(zi+1)*32;
while(1) //无限循环
{
if(s1==0)//检测按键
{
delay(30);//延时消除按键抖动
if(s1==0)
{
TR0=~TR0;//按下暂停 暂按继续
while(s1==0);//等待按键松手
}
}
if(s2==0)//检测按键
{
delay(30);//延时消除按键抖动
if(s2==0)
{
fx=~fx;//方向取反
aa=0;
if(fx==0)net=0;//正向移动
if(fx==1)net=zong;//反向移动
while(s2==0);//等待按键松手
}
}
for(i=0;i<16;i++)//循环移位
{
//两片138组成的4-16线译码器
P2=i;//列数据驱动，138的驱动端口
if(fx==0)writedata(tab[net+aa],tab[net+aa+1]);//写入需要显示的数据
if(fx==1)writedata(tab1[net+aa],tab1[net+aa+1]);//写入需要显示的数据
delay(3);//延时
writedata(0,0);//清屏
aa+=2;//数据加 实现扫描
if(aa>30)aa=0;//循环16次 清零
}
}
}
五、实验现象
演示视频：
