本人经过三天时间设计的智能密码锁。包含完整的原理图 PCB图和程序。能实现设置密码，输错密码报警，正确开锁（指示灯显示）等功能。-After three days of intelligent design locks. Contains a complete map of the PCB schematic and procedures. To achieve set a password, password mismatched alarm, unlock the right (light