想請問SENSOR BAR的製作 - 任天堂

By Jacky
at 2007-03-23T21:34
at 2007-03-23T21:34
Table of Contents
小弟剛剛按照之前幾位大大PO的方式去做了
可是因為怕會失敗所以還沒有把所有的LED 發射端悍上去
想說先測試一下
我拿了
1.一顆1.5V的乾電池
2.接上一顆LED燈
3.在串聯上一顆LED發上端
小弟真的不是很懂
若是去除LED發射端只接1+2 2會亮
但是若把1+2+3全串聯在一起 2就不亮了呢
我正負極有反過來再做一次(接反了電阻是不是會變很大阿~高中好像有學過~但忘了><)
但 2還是不亮
我買的東西如下
http://www.wretch.cc/album/show.php?i=shinhongnew&b=5&f=1063961031&p=0
對了想請問一下我買的電阻不知有沒有買錯(我買的時候上面是50歐姆~光看電阻上的圈環
可以知道我買的是不是50歐姆嗎)
不知有沒有買錯
還請大大們指教
謝謝
--
可是因為怕會失敗所以還沒有把所有的LED 發射端悍上去
想說先測試一下
我拿了
1.一顆1.5V的乾電池
2.接上一顆LED燈
3.在串聯上一顆LED發上端
小弟真的不是很懂
若是去除LED發射端只接1+2 2會亮
但是若把1+2+3全串聯在一起 2就不亮了呢
我正負極有反過來再做一次(接反了電阻是不是會變很大阿~高中好像有學過~但忘了><)
但 2還是不亮
我買的東西如下
http://www.wretch.cc/album/show.php?i=shinhongnew&b=5&f=1063961031&p=0
對了想請問一下我買的電阻不知有沒有買錯(我買的時候上面是50歐姆~光看電阻上的圈環
可以知道我買的是不是50歐姆嗎)
不知有沒有買錯
還請大大們指教
謝謝
--
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任天堂
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