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来源：百度知道 编辑：UC知道 时间：2024/07/05 16:52:33
数字钟已成为人们日常生活中必不可少的必需品，广泛用于个人家庭以及办公室等公共场所，给人们的生活、学习、工作、娱乐带来极大的方便。由于数字集成电路技术的发展和采用了先进的石英技术，使数字钟具有走时准确、性能稳定、携带方便等优点，它还用于计时、自动报时及自动控制等各个领域。尽管目前市场上已有现成的数字钟集成电路芯片出售，价格便宜、使用也方便，但鉴于数字钟电路的基本组成包含了数字电路的主要组成部分，因此进行数字钟的设计是必要的，研究数字钟及扩大其应用，有着非常现实的意义。
利用单片机AT89S52为本系统的主控模块。单片机可把由DS18B20、DS1302读来的数据利用软件来进行处理，从而把数据传输到显示模块，实现温度、日历的显示。LED显示屏为主要的显示模块，把单片机传来的数据显示出来,并且可以实现报时功能。在键盘电路中，主要靠按键来实现各种显示要求的选择与切换。
关键词： 温度控制；电子时钟； 温度传感器；单片机、时钟芯片
20 century's ends, the electronic technology has obtained the rapid development, under its impetus, the modern electronic products seeped society's each domain nearly, promoted the social productive forces development and the social informationization degree enhancement powerfully, simultaneously also makes the modern electronic products performance to further enhance, the product renewal's rhythm is also getting quicker and quicker. the digit clock has become in the people daily life the essential essential item, widely uses in individual family as well as the office and so on public place, for people's life, the study, the work, the entertainment brings enormous convenient. Because the digital integrated circuit technology's development and has used the advanced quartz technology, enables the digital clock to have is in luck, the stable property, to carry merits accurately and so on convenience, it also uses in timing, reporting time automatically and the autom