基于单片机的多功能数字钟的设计本科毕业设计.doc

PAGE 本科毕业设计 基于单片机的多功能数字钟 摘 要 在21世纪社会的迅猛发展浪潮下，电子信息技术也有了快速的推广和应用。在日常工作生活的快节奏下，时间占有着至关重要的位置。也许人们不太在意，在各种各样的日常生活以及各类社会活动中，大家无时无刻地都在留意着时间的变化。时间与人们的生活息息相关，而时间的计算方法发展至今已经演变成时钟和表。本文所阐述的数字钟有多种功能，不仅能够准确的显示时间年月日、时分秒，还有对环境温度进行测量，闹钟设置，秒表计时，电子钟， MP3播放等功能。相比于机械时钟，因为数字钟所采用的是数字电路技术来实现时、分、秒计时，有着更高的准确性和稳定性，而数字钟的结构与装置也更加科学与方便化。 本文主要介绍了基于单片机的多功能数字钟的设计，硬件电路包含时钟模块、温度检测模块、液晶显示模块、按键模块、电源模块，声音模块和复位电路，软件设计包含闹钟设计、秒表计时、电子书阅览、MP3播放等。本设计的数字钟有：时间显示年月日、时分秒，闹钟，秒表计时，电子书，MP3等功能。单片机与多功能数字钟的结合，不仅使得时间的测量更加准确稳定，对环境测试的温度也更加简单、方便、灵活，为我们的日常生活提供了更优质与方便的服务。因此，单片机不仅有力地推动了社会生产力的发展和社会信息化程度的提高，同时也使现代电子产品性能进一步提高。 关键词：单片机 数字钟 温度传感器 Multi-function Digital Clock Based On MCU Cai Bingnan (College of Engineering, South China Agricultural University, Guangzhou 510642, China) Abstract: The rapid development in the twenty-first Century social tide, electronic information technology has been rapid promotion and application. In their daily work life fast rhythm, time occupies a crucial position. Maybe people dont care too much, in a variety of daily life and all kinds of social activities, we every hour and moment are watching the change of time. The time of our lives, and the calculation method of time has evolved into a clock and watch. Digital clock is described in this paper has a variety of functions, not only can display the date when the minutes and seconds time, accurate, and measurement of environmental temperature, alarm clock, stopwatch, electronic clock, MP3 player and other functions. Compared to the mechanical clock, because the digital clock is used in the digital circuit technology to realize, when, seconds, has a higher accuracy and stability, and the structure and device of digital clock is more scientific and convenient. This paper mainly introduces the design of multi-function digital clock based on MCU, the hardware circuit consists of the clock module, temperature detecting module, liquid crystal display module, keyboard module, power module, voice module and a reset circuit, software