畢業(yè)設計-基于at89c51單片機的水位控制系統(tǒng)設計-wenkub.com
2025-01-14 00:12 本頁面
【正文】 ll be traveling fast, so despite the distance, it will not be like diving into 單片機原理及系統(tǒng)課程設計報告 15 the deep end of a pool. It will be like he is diving into the shallow end. Skydiver preps for the big jump When he jumps, he is expected to reach the speed of sound 690 mph (1,110 kph) in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him pletely. If he goes too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes it39。 Have declared the end of the encounter that haven39。那些曾經所謂的非做不可，只是青蔥年華里自己給自己注射的一支強心劑，或者說，是自以為是的精神寄托罷了。s time, your ideas are always special to clear. Want, want, line is clear, as if nothing could shake his. Also once seemed to be determined to do something, but more often is he backed out at last. Dislike his cowardice, finally found that there are a lot of love, there are a lot of miss, like shadow really have been doomed. Those who do, just green years oneself give oneself an arm injection, or is a selfrighteous spiritual. 一個人的時候，自己的想法總是特別地清晰。t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at 單片機原理及系統(tǒng)課程設計報告 14 his thrown a basketball hoops, suddenly found himself has already can39。 The end of our life, and can meet many things really do? 而窮盡我們的一生，又能遇到多少事情是真正地非做不可？ During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more and more found that those things are optional。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it. 一字開頭的年齡已經到了尾聲。s 21 win. Michel Platini, president of European football39。s antiracism taskforce, is in London for the Football Association39。t agree with the disciplinary action your employer has taken against you ? your employer dismisses you and you think that you have been dismissed unfairly. For more information about dismissal and unfair dismissal, see Dismissal. You can make a claim to an employment tribunal, even if you haven39。 /* 為低電平 */ MOR=1。 /* 為低電平 */ MOR=1。 /* 為低 */ MOR=1。 /* 為高電平 */ MOR=1。 /* 為高電平 */ MOR=1。 /* 為高電平 */ MOR=1。 /* 為低電平 */ MOR=0。 /*LED 為低電平 */ MOR=0。 /*LED 燈為 口 */ code uchar tab[]={0x3f,0x06,0x5b,0x4f,0x66, 0x6d,0x7d,0x07,0x7f,0x6f}。這次設計之后，我感覺到自己在自動化專業(yè)上的學習應該還有很長的路走，自動化是一個很有前途的行業(yè)，它涉及了生產生活的多個方 面，對人們的影響可想而知，所以，學好自動化專業(yè)的知識不僅僅是對自己能力提升和自我價值的實現，更是一件很有意義，可以讓自己有所感觸，有所收獲的事業(yè)。通過自動調節(jié)控制液位并實現水體的液位報警。 開 始水 位 過 低水 位 低水 位 高水 位 很 高結 束燈 亮電 動 機 加 水電 動 機 停 止 加水燈 亮NYNYNYN 圖 8 水位控制流程圖 單片機原理及系統(tǒng)課程設計報告 8 5 系統(tǒng)仿真及實際調試 元 器件清單 7SEGCOMCATGRN LED 數碼管 AT89C1 單片機 BUTTON 按鈕 CAP 電容 G2RL1ACFDC5 繼電器 2N6609 三極管 CAPELEC 陶瓷電容 CRYSTAL 31 兆晶振 LEDRED 發(fā)光二極管 MOTOR 電機 RES 電阻 RESPACK8 排阻 系統(tǒng)調試及仿真 將所有的硬件按照上面所說的方法連接起來，將源程序在 keil c中生成 .hex 文件，放在在 proteus 中連接好的電路圖中，運行，則可得到正確的結果。 C21 0 pC31 0 pX1C R Y S T A L 圖 7 晶振電路 4 軟件設計 程序流程圖及其分析 水位檢測是通過 7 個按鈕進行水位檢測的，當水位到檢測位置其輸出端口就向單片機輸出低電平。
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