====== Tep #3 - 1 解决I/O不够用的情况 ======

{{ :os:tep:tep3.jpg?direct&600 |}}


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===== PPT =====

{{:os:tep:tep3-1.pdf|点击下载}}

[[http://blog.mangolovecarrot.net/2015/06/08/raspi-study0802/|移位寄存器动图]]

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===== Arduino Nano USB Driver =====

{{:os:robot:ch340_mac.zip|CH340 OS X Driver}}

{{:os:robot:ch340_win_64.zip|CH340 Win Driver}}

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===== 数码管代码生成器 =====

[[http://www.treee.com.cn/app/num.htm|点击打开]]
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===== 所需元件 =====

  * Arduino Nano 1个

  * 贴片排阻 1K 4个

  * 4bit 数码管 2个

  * 微动按键 16个

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===== 资料 =====

{{:os:tep:74hc_hct595.pdf|74HC595 芯片手册}}

{{:os:tep:tep3_sch.pdf|Tep #3 原理图}}

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===== 不要轻易看的代码 =====

{{:os:tep:keymatrix.zip|矩阵键盘}}

{{:os:tep:display8.zip|8位数码管}}