基于AT89S52單片機(jī)的溫度濕度計(jì)的設(shè)計(jì)

目  錄
1 緒論 2
1.1  問題的提出與意義 2
1.2  國內(nèi)外的發(fā)展現(xiàn)狀 2
1.3  研究的目的與方向 2
2 設(shè)計(jì)分析 3
2.1  設(shè)計(jì)方案 3
2.2  系統(tǒng)組成 3
2.3  工作原理 4
3 總體設(shè)計(jì) 4
3.1  主要器件簡介 4
3.2  主要電路模塊 6
3.3  軟件設(shè)計(jì)編程 8
4 調(diào)試 13
結(jié)束語 14
致謝 14
參考文獻(xiàn) 14
附錄 16

 
基于AT89S52單片機(jī)的溫度濕度計(jì)的設(shè)計(jì)
摘要：采用MSC-51系列單片機(jī)中的AT89S51和溫濕度傳感器DHT11的低成本設(shè)計(jì)溫濕度的檢測系統(tǒng)。由DHT11溫濕度傳感器及LCD1602字符型液晶模塊構(gòu)成系統(tǒng)顯示模塊，該系統(tǒng)電路簡單、工作穩(wěn)定、集成度高、調(diào)試方便、測量精準(zhǔn)度高，具有一定的實(shí)用價(jià)值與意義。其中測溫濕度監(jiān)測電路由溫濕度傳感器和預(yù)設(shè)溫度值比較報(bào)警電路組成，用戶根據(jù)需要預(yù)先輸入預(yù)設(shè)值，當(dāng)實(shí)際測量的溫濕度大于預(yù)設(shè)的溫濕度數(shù)值時(shí)，發(fā)出報(bào)警信號（蜂鳴器蜂鳴）。
關(guān)鍵詞：單片機(jī); 溫濕度傳感器; 溫濕度檢測系統(tǒng); AT89S52; DHT11

Based on the Design of Temperature Humidity Indicator of AT89S52 Singlechip
Wang Wei
（Department of Electronic Information Engineering  Supervisor: Shen Wenlong）
Abstract:This design is the use of MSC-51 Series MCU AT89S51 and DHT11 in the low-cost temperature and humidity detection system.The DHT11 temperature and humidity sensor and 1602 constitute a system of character LCD module display module, the system circuit is simple, stable, high level of integration, commissioning convenient, accurate, has some practical value and significance. Temperature and humidity Monitor circuit in which the temperature and humidity sensors and compare the value of the preset temperature alarm circuit, the user input required pre-default value, when the actual temperature and humidity measurements of temperature and humidity is greater than the preset value, an alarm signal (bee Buzzer beep).
Keywords: microcontroller; temperature and humidity sensor; detection system; AT89S52; DHT11