1、 第 页 共 页 摘摘 要要 设计了一款基于AT89S52的智能数字钟，该钟表由主控模块、定时模块、温 度检测模块和显示模块构成。主控模块由主控芯片AT89S52、晶振电路和复位电 路构成；定时模块采用时钟芯片DS1302实现精确定时；用温度传感器DS18B20作 为温度采集源，检测当前温度；用液晶显示器12864显示年、月、日、时间及温 度。该钟表具有智能显示温度和节假日提示功能。可手动设置和修改年、月、日、 时、分、秒等，结构简单，操作方便，准确度高。 关键词：关键词：单片机；时钟芯片；温度传感器；液晶显示器；智能数字钟 第 页 共 页 AT89S52 based Digital Cloc
2、k Design of Intelligent Abstract has designed one section based on at89S52 intelligent digit clock, this clock and watch by the master control module, fixed time the module, the temperature examines the module and the display module constitution. Master control module by master control chip AT89S52,
3、 crystal oscillator electric circuit and reset circuit constitution; Fixed time the module uses clock chip DS1302 to realize precisely fixed time; Gathers the source with temperature sensor DS18B20 as the temperature, the examination current temperature; 12864 demonstrate the year, the month, Japan,
4、 the time and the temperature with the liquid-crystal display. This clock and watch has the intelligent demonstration temperature and the holiday prompt facility. But manual establishment and revision year, month, Japan, time, divides, the second and so on, the structure is simple, the ease of operation, the accuracy is high. Keyword：SCM; clock chip; liquid crystal display; temperature ; Intelligent digital clock 第 页 共 页 目目 录录 1 引引 言言 1 2 选题背景及意义选题背景及意义
