用51单片机为MCU，分别以18B20、DS1302、LCD1602为温度、时间采集和显示器件。可通过串口上传当前温度，间隔约为14s，也可以由串口下发温度上下限值，发送时为6个字符，前三个为下限，后三个为上限，温度范围为18B20 的检测范围-MCU with 51 MCU, respectively, 18B20, DS1302, LCD1602 as temperature, time collection and display devices. From the current tem

ZKLibrary is PHP Library for ZK Time & Attendance Devices. This library is design to reading and writing data to attendance device (fingerprint, face recognition or RFID) using UDP protocol. This library is useful to comunicate between web server