基于51单片机AS608指纹自动识别电路设计（毕业设计）
本设计是基于STC89C52单片机的指纹识别设计，采用AS608指纹模块做为传感器，LCD1602显示屏显示信息。具有指纹添加，指纹识别，删除指纹功能。是一款简单的指纹识别毕业设计设计，电路原理图和PCB以及程序完整。添加简单的电路可以拓展为其他的设计。
【资源下载】下载地址如下（926）：https://docs.qq.com/doc/DTlRSd01BZXNpRUxl
#include
#include"lcd.h"
sbit D3= P1^3;
sbit D4= P1^4;
sbit k3=P1^0;
sbit k4=P1^1;
sbit k5=P1^2;
#define FALSE 0
#define TURE 1
#define MAX_NUMBER 30
#define _Nop() _nop_()
unsigned char code jiemian[16] = "Fingerprint lock";
unsigned char code success[15] = "Add finger OK";
unsigned char code faild[16] = "Add finger faild";
unsigned char code shownum[12] = "Finger_NUM:";
unsigned char code MODE1[16] = "Add finger mode";
unsigned char code MODE2[16] = "Identify mode";
unsigned char code MODE3[16] = "Connection OK";
unsigned char code MODE4[16] = "Connection Faild";
unsigned char code shibie1[16] = "Identify OK";
unsigned char code shibie2[16] = "Identify Faild";
unsigned char code del[16] = "DEL success";
unsigned char strnum[3]={0};
unsigned char SaveNumber=0,searchnum=0;
unsigned int SearchNumber=0,clk0=0;
bit modeflag= 0 , clearallflag=0, changeflag=0;
unsigned char num_char[10]={'0','1','2','3','4','5','6','7','8','9'};
//定义密码，实际上密码需要存在eeprom中，可以通过程序更改。请用户自行添加
unsigned char FifoNumber=0;
unsigned char idata FIFO[MAX_NUMBER+1]={0};
//常用指令定义/
//Verify Password ：验证设备握手口令
unsigned char code VPWD[16]={16,0X01 ,0Xff,0xff,0xff,0xff, 0x01,0,7,0x13,0x00,0x00,0x00,0x00,0x00,0x1b}; //回送12个
//设置设备握手口令
unsigned char code STWD[16]={16,0X01 ,0Xff,0xff,0xff,0xff, 0x01,0,7,0x12,0x00,0x00,0x00,0x00,0x00,0x1a}; //回送12个
//GetImage ：探测手指并从传感器上读入图像
unsigned char code GIMG[14]={12, 0X01 ,0Xff,0xff,0xff,0xff, 0x01, 0,3,1,0x00,0x05}; //回送12个