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Yahoo!奇摩知識+ - 分類問答 - 電腦網路 - 發問中
Yahoo!奇摩知識+ - 分類問答 - 電腦網路 - 發問中
8051電路圖介紹
Jun 10th 2013, 12:04

這個是一個升降機1~4樓的8051電路圖 想請問:
他接腳P1.0~1.3和P2.0~P2.3所代表的意義是什麼
他那按鈕會有什麼功能是只要按1~4就是所到的樓層還是什麼?

另一個是步進馬達的電路板 他圖上的ABCD又是什麼有什麼功用?

http://www.wretch.cc/album/show.php?i=cf904a28&b=6&f=1411134798&p=0
http://www.wretch.cc/album/show.php?i=cf904a28&b=6&f=1411134799&p=1

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