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qiulong216
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樓主  發(fā)表于: 2009-09-22 18:17
 
 大家好:
     小弟是新手,最近在做一個(gè)紅綠燈的課題,要求有左拐,和人行道,主程序方面已經(jīng)搞定,但是用七段數碼管倒記時(shí),小弟也找到一種方法,就是分別用七個(gè)輸出去控制數碼管的七個(gè)端子,但是這樣一邊要兩個(gè)數碼管,兩邊四個(gè)可就是4*7=28個(gè)輸出,大家也知道多了這么多的輸出,那得多多少錢(qián)?各位大哥不知道有沒(méi)有什么方法可以減少PLC的輸出.
469423209
哥用酒瓶換酒喝
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1樓  發(fā)表于: 2009-09-22 19:03
我想說(shuō) 你可以用PLC去控制單片機  在用單片機 控制數碼管啊

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