我应该制作自己的示波器吗？

If you are in the market for a USB oscilloscope, but feel intimidated by some of the prices, you may have considered trying to make one yourself. After all, with the wealth of different microcontrollers and even free software out there, it seemslike这可能是可行和教育的努力。

快速谷歌搜索“DIY示波器”会产生包括Arduino-Powered教程的页面，包括用于购买的套件。

Personally I have always been partial to DIY solutions, and I think home builds are a great way to get familiar with a concept or piece of hardware. But in an effort to get more informed on this issue, I turned to the largest source of wisdom I know- the internet.

在浏览许多论坛和问题周围的讨论后，我开始从尝试这件事的人看到一些共同的问题。它们包括以下内容：

1. 在对费用所需的时间方面没有高效。由于金钱是时候，这是一个重要的考虑，在看看可能是一个看似廉价的选择。
2. Likely to be inaccurate. Furthermore, if you are not super familiar with oscilloscopes, and your project is giving inaccurate readings, it can get in the way of learning how to use oscilloscopes in general.
3. 不会有高带宽，因此它将具有更多的别名，这意味着无法使用的数据。
4. A useful oscilloscope needs a good software interface, ideally with access to human support.

我跨越诸如此之类的线程，人们争论了使用MCU来制作示波器的优点。

I ran across the above thread as a comment on the模拟发现2页面sparkfun.com。For reference,模拟发现2$ 279，它用作示波器，波形发生器，电源，电压表，数据记录器，逻辑分析仪，图案发生器，静态I / O，频谱分析仪，网络分析仪，阻抗分析仪和协议分析仪。它也与强大的兼容波形软件。

虽然有时建立某些东西是一个很好的方法，可以更深入地了解这一实例（如3D打印机），购买设备and将时间和精力放在探索其软件和能力，可能是一个更好的选择。使用潜在的丢弃项目来调试其他项目可能非常令人沮丧，因为您可能永远不会知道错误来自哪里。

If you are interested in the development side however, I would suggest checking out an open-source oscilloscope project such as theOpenScope MZ.（价格为89美元）。这将是一个很好的选择，特别是如果您希望更熟悉如何制作示波器的结构。

总的来说,虽然它很容易解决challenge of a home-brew oscilloscope project, after reading forums (and a lot of frustrated complaints) about the process and outcome, I would recommend that you instead look into purchasing one in your price range. There is an incredibly wide spectrum of price for this particular tool, so it is a good idea to do a bit of research and read some购买指南在你拿下暴跌之前。请记住您究竟是什么使用它（以及您的哪些功能需要vs. would be nice to have) and make sure the product you pick comes with well-reviewed software and lots of support.

然后一旦你用你的新设备武装，就会在那里拿出一些测量！