【正文】 70 0 U FC11 041234D 1 D 4~ 22 0 V~ 22 0 VV in1GND2V o ut37 81 2V in1 GND2V o ut37 91 2T1GNDC42 20 0 U FC31 04C82 20 0 U FC71 04C64 70 0 U FC51 04GND+ 12 VGND1 2 V 圖 11 177。 3)速度快，是 LCD12864 的 20 倍，是 LCD1602 的 40 倍。如果所有的列線都沒有低電平，則鍵盤上無按鍵按下。智能家居控制系統(tǒng)的設(shè)計(jì) 12 但 0、 3 號(hào) 齒輪與 A、 B 相繞組 電磁極就會(huì) 產(chǎn)生 錯(cuò)位 ， 5 號(hào) 齒輪 就 與 A、 D 相繞組 的電 磁極產(chǎn)生 錯(cuò)位 。 需要注意的是，在使用 ULN2021 時(shí) ，為了讓這個(gè)二極管起到續(xù) 流作用，必須將 COM引腳 （ pin9）接在負(fù)載的供電電源上，只有這樣才能夠形成續(xù)流回路 ，這是因?yàn)?ULN2021是集電極開路輸出 。 圖 17 ATmega16原理圖 智能家居控制系統(tǒng)的設(shè)計(jì) 14 圖 18 ATmega16 PCB 圖 程序編譯環(huán)境 ICCAVR 軟件 ICCAVR 軟件是 一種符合 ANSI 標(biāo)準(zhǔn)的 C 語言來開發(fā) MCU（單片機(jī)）程序的一個(gè)工具，功能合適、使用方便、技術(shù)支持好，它主要有以下幾個(gè)特點(diǎn)： （ IDE）； ，文檔的編輯和工程的構(gòu)造都是在項(xiàng)目工程中完成的，編譯的錯(cuò)誤會(huì)在在狀態(tài)窗口中顯示，且當(dāng)你點(diǎn)擊一個(gè)編譯錯(cuò)誤時(shí)，光標(biāo)則會(huì)自動(dòng)跳到該行的錯(cuò)誤； 直接 生成 HEX 格式 的燒寫文件（大多數(shù)編程器 都 支持 HEX 格式的文件，可以直接下載到芯片 中使用）和符合 AVRStudio 的調(diào)試文件 (COFF 格式 )[17]。 環(huán)境是否變暗 開始 按鍵選擇模式 返回 是否有異常火焰 安防模式 火焰?zhèn)鞲衅? 蜂鳴器報(bào)警 光傳感器 電機(jī)工作，拉到窗簾 臺(tái)燈亮滅 聲音 傳感器 是否有聲音 自動(dòng)模式 2021屆本科畢業(yè)論文 17 圖 22 液晶顯示界面 圖 23 傳感器模塊 本次設(shè)計(jì)為了模擬顯示的窗簾，此次選擇細(xì)線上掛幾個(gè)物體來擔(dān)當(dāng)窗簾的角色，用步進(jìn)電機(jī)來控制窗簾的收縮。通過設(shè)計(jì)也讓我對電子更加感興趣，增強(qiáng)了學(xué)習(xí)的興趣。t have a formal stage. The audience just sat on the grass. Usually, the performances became a big party with local people joining in. For him, the rewarding part about touring isn39。s lost, I believe, are the interesting setups and pauses that illuminate the Chinese art of storytelling. Much of the plot is still there. It is the flavor that was sacrificed. The American edition uses the framework of the Empress Dowager in her senior years reminiscing at the beginning and the end of each episode, hinting at what39。ve been here I have been tasked with nothing more challenging than learning my students39。s essay affects me very deeply. Not as an urging to bee self reliant – I39。s Liaoning province, decades ago. The solider gave the old man a handmade saddle when they bid farewell. The story inspired Nasun to write Carved Saddle, a song that later became one of his most popular numbers. Now, every year, Nasun recruits young singers and dancers for the troupe. The troupe has also designed a new repertoire, which is mostly based on the daily lives of Mongolian people, especially the lives of nomadic families, and has bined contemporary musical elements with folk songs of the region. Haimu, a 25yearold khoomei (a local variant of overtone singing) singer, joined the troupe three years ago. Along with a sixmember band, he performs fast songs and soft ones that he writes－ all while playing the horsehead fiddle.Although I learned the piano since childhood and grew up listening to various kinds of music, to me, the folk music of Inner Mongolia is the root, he says. Performing in remote villages is pleasant. I feel at home on the boundless grasslands, and the warm people there make me feel fulfilled. The first round of spring auction season in Beijing ended last week, but it failed to create much spring in the art market. Although two pieces of Chinese painting fetched more than 100 million yuan, the decline in trading volume and sa le rate showed a downturn this year. In the ―Grand View: Chinese Painting Highlight‖ session at China Guardian 2021 spring auctions, Pan Tianshou’s representative work Eagle, Rock and Flora hit a record auction price of 279 million yuan, while Li Keran’s masterwork Jinggang Mountain fetched million yuan, an unexpected high in recent years. However, the trading volume fells to billion yuan from billion yuan in the same period the year before. The Huangchen 2021 Spring Auctions, which recorded million yuan in total sales, experienced the same. The section number went down to 5 from 12 pared to last year. According to expert Shao Jianwu, the art market did not attract much excitement this year due to the booming stock market and the persistent problems of fery and fake deals. The two pieces of Chinese painting notched up high price this spring due to their own value not due to a revival in the market. The successful transaction of two works with a hammer price of more than 100 million yuan once again confirms that valuable and rare works of high quality always earn the longlasting high price. Chinese painting and calligraphy is still the pillar of the market. However, the overall sales rate has dropped slightly, which reflects the demand for the ordinary auction goods has weakened,‖ said the president of China Guardian’s Hu Yanyan. Besides, the entry of new buyers also makes certain changes to the direction of purchasing. In a word, the overall market trend is very unpredictable. Although China Guardian 2021 Spring Auctions has achieved remarkable results, it does not mean that the market has walked out of the predicament. We still have to wait for the big economic boom to invigorate the art market.‖ Even so, the hot pursuit of some special items appeared this spring. A special session of China Guardian Spring Auctions titled ―Fine Gilt—Bronze Buddhist Images‖ achieved a great deal with total sales volume of million yuan and 92 percent sale rate. The 5th Shamar Rinpoche Statue from 1617th century of Tibet was sold for million yuan. The Beijing Chengxuan Auctions featured almost 2,800 items of coins and stamps in three sessions with good sale rate. The Huachen Auctions also set a special session of photographs under the condition of largescale decline of auction sessions. There was a palpable dull thud of disappointment that acpanied the return of the imperial entourage of Zhen Huan to her homeland. It followed a couple years of hushed excitement as Chinese fans were fed tidbits about their proud concubine who was supposed to conquer the high ground of the North American market. Zhen Huan is, of course, the title character of The Legend of Zhen Huan, a 2021 television series that swept China off its feet and later