密码锁51单片机举证键盘1602液晶,,,,,,,,,,,6为密码锁你懂得,,,,,,,可修改密码-It is a lock which can only be opened by your own code .With 51MCU on it ,and 602 for printf something

基于51单片机设计的1602电子密码锁的protues仿真资料加原程序-Based on 51 single-chip design of 1602 electronic locks protues simulation data plus the original program