亮度自動調(diào)節(jié)臺燈電路的設(shè)計(jì)

1、1摘要臺燈亮度自動調(diào)節(jié)電路系統(tǒng)以 STC12C5A60S2 單片機(jī)為中央控制單元，通過光敏電阻等擴(kuò)展模塊，實(shí)現(xiàn)了根據(jù)外界光照強(qiáng)度變化臺燈自動調(diào)節(jié)亮度的功能。該設(shè)計(jì)主要實(shí)現(xiàn)了臺燈亮度的自動調(diào)節(jié)，單片機(jī)通過光敏電阻來獲取外界的光強(qiáng)信息并將該信息轉(zhuǎn)換成數(shù)字信號。通過紅外模塊系統(tǒng)判斷臺燈附近是否有人，無人時(shí)臺燈不工作，有人在附近時(shí)，臺燈會自動開啟。當(dāng)人離開一段時(shí)間后臺燈會自動關(guān)閉并作出提醒，這樣便有效地節(jié)約了能源。此外系統(tǒng)還帶有時(shí)間顯示的功能，

2、通過按鍵調(diào)節(jié)可以對時(shí)間進(jìn)行校正。經(jīng)過測試，各模塊的功能均能正常實(shí)現(xiàn)，同時(shí)該系統(tǒng)還具有控制簡單、反應(yīng)靈敏等優(yōu)點(diǎn)。關(guān)鍵詞： 關(guān)鍵詞：STC12C5A60S2 單片機(jī)；光敏電阻；PWM 波；紅外感應(yīng)3目錄1 緒論....................................................................................................................

3、......61.1 研究課題的背景與意義...............................................................................61.2 本課題的研究內(nèi)容及實(shí)施方案...................................................................71.3 論文內(nèi)容安排.....................

4、..........................................................................82 整體方案設(shè)計(jì)..........................................................................................................82.1 整體邏輯框圖..................

5、.............................................................................82.2 方案論證.......................................................................................................93 硬件方案設(shè)計(jì)....................

6、....................................................................................113.1 STC12C5A60S2 最小系統(tǒng).........................................................................113.2 光敏電阻............................

7、.........................................................................123.2.1 光敏電阻的性質(zhì)..............................................................................123.2.2 光敏電阻模塊電路圖...................................

8、...................................153.3 液晶顯示屏 1602........................................................................................153.3.1 1602 簡介................................................................

9、.........................153.3.2 1602 與單片機(jī)連接圖.....................................................................173.4 時(shí)鐘芯片 DS1302.......................................................................................

10、183.5 紅外傳感器.................................................................................................193.6 按鍵模塊....................................................................................................

11、.203.7 蜂鳴器電路.................................................................................................204 軟件設(shè)計(jì).....................................................................................................

12、...........214.1 整體軟件流程圖.........................................................................................214.2 各子模塊功能設(shè)計(jì).....................................................................................224.2.

13、1 STC12C5A60S2 單片機(jī) A/D 轉(zhuǎn)換模塊.........................................224.2.2 STC12C5A60S2 單片機(jī)中斷模塊..................................................254.2.3 單片機(jī)定時(shí)器模塊.......................................................

14、...................274.2.4 光線采集的實(shí)現(xiàn)..............................................................................304.2.5 自動斷電功能的實(shí)現(xiàn)......................................................................314.2.6 LCD 顯示模塊..

15、...............................................................................324.2.7 時(shí)鐘模塊..........................................................................................354.3 軟件開發(fā)環(huán)境.........................

16、....................................................................364.3.1 KEIL 簡介........................................................................................364.3.2 STC-ISP 簡介.............................

17、......................................................375 系統(tǒng)調(diào)試................................................................................................................395.1 焊接....................................

18、.........................................................................395.2 調(diào)試結(jié)果.....................................................................................................40總結(jié)與展望............................