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| 折扣與優(yōu)惠：團(tuán)購(gòu)最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:在繁忙的工作與生活中，人們對(duì)時(shí)間觀念表現(xiàn)的越來(lái)越重視，電子萬(wàn)年歷的出現(xiàn)有助于人們更好地利用時(shí)間。 電子萬(wàn)年歷設(shè)計(jì)核心是單片機(jī)，能夠顯示年，月，日，時(shí)，分，秒，星期以及溫度的信息。設(shè)計(jì)的硬件組成包括AT89C52單片機(jī)模塊，DS1302時(shí)鐘模塊，數(shù)字式溫度傳感器DS18B20模塊，LED數(shù)碼管模塊。AT89C52單片機(jī)作為設(shè)計(jì)的核心，能在3V的低壓狀態(tài)下工作，因此電源可選用3~5V的電壓。時(shí)鐘芯片DS1302誤差小且使用壽命長(zhǎng)，可采用直觀的方式同時(shí)顯示出年，月，日，時(shí)，分，秒，周和溫度信息，還具有掉電保護(hù)功能。數(shù)字式溫度傳感器僅需一個(gè)端口引腳與控制核心進(jìn)行通信，超小的體積且無(wú)需外部器件，測(cè)量精度高，范圍廣且抗干擾能力強(qiáng)。LED數(shù)碼管成本低，若采用動(dòng)態(tài)掃描法與控制核心進(jìn)行連接，能大大減少單片機(jī)占用口線，對(duì)于顯示數(shù)字非常合適。 關(guān)鍵詞 AT89C52；DS1302；DS18B20；LED數(shù)碼管
Abstract:In the busy work and life, people pay more and more attention to in the concept of time. The emergence of electronic calendar can help people better use of time. The electronic calendar design core is a single-chip microcomputer. It can display year, month, day, points, SEC, week and temperature information. The design of hardware includes the AT89C52 single chip micro-computer module and the DS1302 clock module and the digital temperature sensor DS18B20 module and the LED digital tube module. As the core of the design, AT89C52 single-chip microcomputer can work under 3 v low voltage state so that power can choose 3 ~ 5 v voltage. Clock chip DS1302 has the small error and a long service life . It can use intuitive manner at the same time shows a year, month, day, points, SEC, week and temperature information . It also has the protection function when the power supply drop. DS18B20 adopts unique single wire interface to communicate only one port pin .It has small volume and without external devices and it has a high measurement precision and the wide range and the anti-interference ability is strong. The LED digital tube costs low. When the LED digital which is using dynamic scanning is connected with single-chip computer,it takes up fewer micro-controller mouth line and it is very suitable for display number. Keywords AT89C52 DS1302 DS18B20 digital tube |
