范文编号:DZXX067 范文字数:11934,页数:50 摘要 该简易智能密码锁是以AT89C51单片机为控制核心,外加密码存储,行列式键盘,状态显示,声光报警,液晶LCD显示等电路的配合。密码存储电路采用I2C总线的EEPROM存储器AT24C01,保证掉电时密码信息不丢失。单片机是整个系统的控制中心,它除了完成密码读取、密码比较、密码存储、错误密码处理、显示等功能外,还实现与键盘和显示LCD的接口功能。用户可以通过键盘输入密码,可以显示密码,同时也可以修改密码。在输错三次密码后,自动声光报警,并锁住键盘。关键词: 单片机,智能密码锁,AT89C51 ,AT24C01, LCD ABSTRACT This simple intelligence password lock is based on MCU AT89C51, in addition, password saving, the row or column type keyboard, estate manifestation, the sound and light alarm, the LCD manifestation circuit and so on. The password saving circuit adopt I2C BUS of EEPROM memorizer AT24C01, and assurance while dropping the electricity the password information does not lose. The MCU is a control centre of the whole system. It is in addition to completing to read the password, compare password, save password, handle the false password, display an so on, still carrying out with the keyboard and LCD interface function. The customer can import the password with the keyboard, the password can display, also the customer can modify the password. At three times importing password after, it will give an sound and light alarm, and lock the keyboard. 目录 摘要.................................................................I 简易智能密码锁相关范文 |
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