三部分系列采样EDA工具（PCB设计软件）
作为技术人员并且在Digi-Key工作可以等同于典型的“糖果店里的孩子”，仅限于极客。
几乎可以即时访问数以百万计的电子零件和一个充满示例电路和教程的互联网，从而为创建大量电路敞开大门。
自由形式焊接电路一次有趣的原型，但如果你有能力旋转电路板，不止一次是疯了。
经过测试，能够反复放下零件并焊接，确保连接正确无误（无论您的理智和时间）。
在这三个系列的第一个中，我将与easyEDA.com（EDA =电子设计自动化）分享我的一些经验。
几年前我们遇到过easyEDA.com，我一直在这里和那里讨论它。
因为它是100％基于浏览器（无需安装/登录任何软件），它不仅超级便携，而且非常容易共享项目。
然而，我很难投入大量精力学习它，因为虽然免费且易于使用，但没有理由相信它不会随心所欲地消失。
现在它已被一家公司收购，因此人们可能会对它的寿命感觉更好。
我想要一个用于我的4轮车LED大灯的眨眼电路，所以我用这个555定时器在5％的时间内5％的时间关闭MOSFET。
easyEDA原理图界面非常直观，一切都井井有条，易于根据需要进行更改：
任何符号或脚印都会自动在“用户贡献”中公开提供，这可能会有所帮助，但请务必仔细检查它们：
布局很简单，最常见的设置为默认设置：
最后，由生成的Gerbers制造的OSHpark紫色PCB优点：
（对于那些不熟悉的人来说，OSHpark按平方英寸收费;因此看到我可以在没有太容易启用桥梁的情况下获得它有多小的挑战。你可以使用任何你想要的颜色 - 只要颜色是紫色。）
工作得很好。
（虽然这里没有显示;我了解到1206个SMT部件很容易焊接在0.1“间隔的镀通孔脚印上）
随意在easyEDA上使用此设计。
使用来自schematica.com的555计算器，并使用“Astable - Duty cycle> 50％”选项获取50以上任何频率和占空比的值。
对于尚未学习制造PCB（即使用EDA工具）的人来说，从来没有像现在这样的时间。
您可以学习，设计和订购优质PCB，即使是小批量生产，也只需几天的价格。
跳入，开始简单，首先留出足够的空间，并有一些良好的干净的怪异乐趣。
对于那些使用过不同EDA工具的人，我希望easyEDA.com的一瞥至少是有趣的，如果不是鼓励，如果你想尝试不同的东西。
在本系列的第2部分中，我将分享我对KiCad的经历。
以上来自于谷歌翻译
以下为原文
A Three-Part Series Sampling EDA Tools (PCB Design Software)
Being a technician and working at Digi-Key can be equated to the quintessential “kid in the candy store,” only for geeks. Having almost instant access to millions of electronic parts and an internet full of example circuits and tutorials leaves the door wide open to creating a plethora of circuits.
Free-form soldering a circuit is fun one time to prototype something, but more than once is crazy if you have the means to spin a board. Once tested, being able to repeatedly drop your parts down and solder, being confident that the connections are correct, is priceless (in terms of your sanity and time).
In this first of three series, I’ll share some of my experiences with easyEDA.com (EDA = Electronic design automation).
We ran across easyEDA.com a few years ago, and I have been dabbling with it here and there. Because it’s 100% browser based (no software to install/log in anywhere), it is not only super portable, but also very easy to share projects. It was, however, hard for me to want to invest much effort learning it because, although free and easy to use, there was no reason to believe it wouldn’t disappear on a whim. Now it has been purchased by a company so one might feel better about its longevity.
I wanted a blink circuit for my 4-wheeler’s LED headlights, so I made this 555 timer to turn off a MOSFET 5% of the time, at 5 Hz.
The easyEDA schematic interface is pretty intuitive, with everything organized well and easy to alter as needed:
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Any symbols or footprints are automatically made publicly available in the ‘User Contributions’ which can be helpful, but be sure to double check them:
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The layout is straightforward with the most common settings as default:
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Finally, the OSHpark purple PCB goodness manufactured from the generated Gerbers:
(For those unfamiliar, OSHpark charges by the square inch; hence the challenge to see how small I could get it without too easily enabling bridges. And you can have them in any color you wish—as long as that color is purple.)
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Worked perfectly.
(Although not shown here; I learned that 1206 SMT parts solder down easily on 0.1” spaced plated through-hole footprints)
Feel free to use this design on easyEDA. Use the 555 calculator from schematica.com, and use the “Astable - Duty cycle > 50%” option to get values for any frequency and duty cycle above 50.
For anyone who has yet to learn to create PCBs (i.e. use EDA tools), there has never been a time like the present. You can learn, design, and order quality PCBs, even in small batches, for a fraction of the price of days’ past. Jump in, start simple, leave plenty of space at first, and have some good clean geeky fun.
For those who have used different EDA tools, I hope this glimpse into easyEDA.com was at least entertaining, if not encouraging, should you wish to try something different.
In Part 2 of the series I’ll share a glimpse of my experience with KiCad.
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