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制作机器人“瓦力”(三)——DIY Handy Board Serial Interface

Posted on:  December 27, 2009  |   Category: Wall-E
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       其实这个本不应该属于“瓦力”的制作范畴,但是Handy Board附带的原生Serial Interface实在让人头疼,硕大一个板子不说,接口还非得一头是DB9 to DB25,另一头是RJ12,然后还多余的附带一个充电电路。为了能让它便于安装到“瓦力”身上,我做了一个缩小版的Serial Interface(制作过程中参考了这里)。

原版:

 original-si-1

original-si-2

缩小版:

new-si-1

new-si-2

 

其实这次我并没能将 Serial Interface 做的足够小,其中一个很大的原因是自己多年未焊接电路板,所以脑袋和手都不太灵活,元件的位置和接口安排不太合理不说,背面的引线也很混乱,还忘记了做开关和5V扩展接头。在这里我先将它的制作过程简单写一下,并发布已经修改好的电路图,过阵子我重新做了新板子会更新本文的图片。

 

所需元件:

1. 25V,10uF 电容 x4

2. MAX232 x1

3. 0.1uF 陶瓷电容

4. 红色、绿色发光二极管各一个

5. 2.2K,1K电阻各一个

6. LM7805 x1

 

电路图:(如有错误或不明确指出请指出)

Serial Interface

PDF Version:Serial Interface.pdf

ms10 Version:Serial Interface.ms10

这是改进后的电路图,我想在这个新的板子上,RJ12端用一个USB Female Connector、DB9端用一个3.5mm Female Jack来做,5V以2 Jumper Pin引出,然后分别做一根RJ12 to USB和一个DB9 to 3.5mm Male的线即可,这样Serial Interface无论与电脑端还是Handy Board端的连接都很方便了。

To Be Continued…

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