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1、摘要摘要随着生活节奏的加快，时间对于人们越来越重要。此时，多功能数字时钟的出现为人们带来了极大的便利。多功能数字钟与机械式时钟相比具有更高的准确性和直观性，是一种采用数字电路技术来实现时、分、秒计时的装置。本文介绍了基于STC89C52单片机的多功能数字时钟的硬件结构和软硬件设计方法。本设计由液晶显示模块、温湿度采集模块、时间处理模块和按键设置模块四个模块组成。系统以STC89C52为核心控制芯片，以DS1302为时钟芯片，以DHT11为温湿度采集器，通过液晶显示器LCD12864实时显示年、月、日、时、分、秒、温湿度等，通过按键设置年月日和星期以及定时闹钟，定时闹钟时间到自动发出警报。此万年
2、历具有读取方便、显示直观、功能多样、电路简洁、成本低廉等诸多优点，具有广阔的市场前景。关键字：单片机STC89C52，DS1302，LCD12864，数字钟IABSTRACTABSTRACTWiththeacceleratedpaceoflife,timeisbecomingincreasinglyimportanttopeople.Atthistime,theemergenceofmulti-functionaldigitalclocktobringagreatconvenience.Multifunctiondigitalclockwiththemechanicalclockhashigh
3、eraccuracyandintuitive,isadigitalcircuittechnologytorealizethehours,minutes,seconds,timingdevices.ThisarticledescribesthehardwarearchitectureandhardwareandsoftwaredesignSTC89C52MCUmultifunctiondigitalclock.Thedesignoftheliquidcrystaldisplaymodule,temperatureandhumidityacquisitionmodule,aprocessingmo
4、duleandatimesettingmodulefourkeymodules.STC89C52systemasthecorecontrolchip,DS1302clockchip,DHT11astemperatureandhumiditylogger,LCDdisplayLCD12864displaybyyear,month,day,real-time,minutes,seconds,temperatureandhumidity,thedatesetbythebuttonandatimingclockanddayofweek,timetoautomaticallyalertthealarmt
5、ime.Thiscalendarhaseasytoread,displayandintuitive,versatile,simplecircuit,lowcost,andmanyotheradvantages,hasbroadmarketprospects.Keywords:SCMSTC89C52,DS1302,LCD12864,DigitalclockII目录目录第1章引言······················································································11.1课题研究的背景及意义···········
6、····························································11.2课题研究的目的················································································11.3单片机简介······················································································21.3.1单片机的发展及应用·······································
7、································21.3.2单片机的最小系统··········································································5第2章总体方案········································································
