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我想用STC89C1052做大每笔用4个高亮LED发光二级管的时钟应该怎样增加放大元件？

2008-12-18 13:26:47 [zxq]〖121.15.41.241〗：IO口接三极管的基极,集电极去接发光二极管,要接限流电阻.

2008-12-18 14:00:14 [185517176]〖219.139.142.53〗：你看看这样设计电路图行吗http://s5.photo.store.qq.com/http_imgload.cgi?/rurl4_b=f13ba2094bfe8b0dfe016a5f56f7f5101d7defef6791e6ae9bf1cf196c6a1c215bc8f27e0c5a0b29e37683eeff4cff3260e052d937eba1e0d2d9ac260c414ba983b31295ec0b798b0a1cbf8f3d624895d4379bd3

2008-12-18 16:33:44 [185517176]〖219.139.142.53〗：你看看这样设计电路图行吗http://s5.photo.store.qq.com/http_imgload.cgi?/rurl4_b=f13ba2094bfe8b0dfe016a5f56f7f5101d7defef6791e6ae9bf1cf196c6a1c215bc8f27e0c5a0b29e37683eeff4cff3260e052d937eba1e0d2d9ac260c414ba983b31295ec0b798b0a1cbf8f3d624895d4379bd3

2008-12-19 11:20:36 [51dz]〖119.123.56.6〗：P3口的三极管要用NPN管.

2008-12-19 14:55:55 [185517176]〖219.139.11.196〗：p3口用NPN的三极管不行
，用后一直是亮的，

2008-12-20 15:22:36 [51dz]〖119.123.56.22〗：你要定程序进行控制才行.

标题：	〖185517176〗STC89C1052（1055）………… 购物咨询
发送时间：	2008/12/18 11:35:27	更新时间：	2008/12/20 15:22:36
留言内容：	我想用STC89C1052做大每笔用4个高亮LED发光二级管的时钟应该怎样增加放大元件？ 2008-12-18 13:26:47 [zxq]〖121.15.41.241〗：IO口接三极管的基极,集电极去接发光二极管,要接限流电阻. 2008-12-18 14:00:14 [185517176]〖219.139.142.53〗：你看看这样设计电路图行吗http://s5.photo.store.qq.com/http_imgload.cgi?/rurl4_b=f13ba2094bfe8b0dfe016a5f56f7f5101d7defef6791e6ae9bf1cf196c6a1c215bc8f27e0c5a0b29e37683eeff4cff3260e052d937eba1e0d2d9ac260c414ba983b31295ec0b798b0a1cbf8f3d624895d4379bd3 2008-12-18 16:33:44 [185517176]〖219.139.142.53〗：你看看这样设计电路图行吗http://s5.photo.store.qq.com/http_imgload.cgi?/rurl4_b=f13ba2094bfe8b0dfe016a5f56f7f5101d7defef6791e6ae9bf1cf196c6a1c215bc8f27e0c5a0b29e37683eeff4cff3260e052d937eba1e0d2d9ac260c414ba983b31295ec0b798b0a1cbf8f3d624895d4379bd3 2008-12-19 11:20:36 [51dz]〖119.123.56.6〗：P3口的三极管要用NPN管. 2008-12-19 14:55:55 [185517176]〖219.139.11.196〗：p3口用NPN的三极管不行，用后一直是亮的， 2008-12-20 15:22:36 [51dz]〖119.123.56.22〗：你要定程序进行控制才行.
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