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轉(zhuǎn)換比率:金額 X 10=金幣數(shù)量, 例100元=1000金幣 | 論文字?jǐn)?shù):7816 | ![]() | |
折扣與優(yōu)惠:團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式:Word格式(*.doc) | ![]() |
摘要:該溫濕度檢測儀是基于單片機(jī)AT89S51所設(shè)計,并能準(zhǔn)確完成對空氣中溫濕度的檢測。硬件部分,濕度的測量由濕敏電阻完成,并由AD0809作為AD轉(zhuǎn)換對濕敏電阻兩端的電壓進(jìn)行采集。溫度的測量由DS18B20直接完成,并由單片機(jī)處理,得到相應(yīng)的溫濕度的值。本裝置還加入了報警系統(tǒng),由蜂鳴器實現(xiàn),用戶可設(shè)定溫濕度的上下限,一旦超限,蜂鳴器便會報警。LCD1602和數(shù)碼管各作為濕度和溫度的顯示裝置。軟件部分,采用分模塊設(shè)計的方法,將溫度和濕度的顯示分成兩個模塊,用C語言完成,并使之協(xié)調(diào)合作,完成溫室度的檢測。 關(guān)鍵詞:AT89S51單片機(jī); A/D轉(zhuǎn)換器; 溫度傳感器; LCD1602;
Abstract:The temperature and humidity detector is based on AT89S51 ,it can be real-time, accurate measurement of environmental temperature and relative humidity. As the hardware part,humidity measurement by wet sensitive resistance to complete,and the AD0809 as AD transform to moisture sensitive resistance on both ends of the voltage are collected.temperature measurement is complete by DS18B20 temperature probe,single chip processing, get the corresponding temperature and humidity value.The device add an alarm,it can set range.if temprature and humidity over limit it will alarming.Iuse LCD1602 to display humidity and temperature.AsThe software part ,I use the method of module design points,the temperature and humidity display is divided into two modules,with C language to achieve,to combine the various parts of coordination, and eventually realize the environmental temperature and humidity in the real-time detection. Key words: AT89S51 MCU; A/D conversion; Temperature sensor; LCD1602; |