I used to make test systems of electronic components with GPIO, GPIB, and air cylinders. But we could test only very simple components. We are required to test pretty complex components including I2C I/F these days. We searched for suitable solution. I found that PC serial ports control micro controllers which control DUTs via I2C and such systems can easily be implementd by reading this book. Using new PC without serial port, we can use same system by adding USB virtual COM port. I thank the author for giving me recent knowledge about serial port links.

我曾经用GPIO、GPIB和气瓶制作电子元件的测试系统。但我们只能测试非常简单的元件。现在，我们需要测试相当复杂的元件，包括I2C I/F。我们寻找合适的解决方案。我发现PC的串口可以控制微型控制器，这些控制器通过I2C控制DUT，通过阅读这本书可以很容易地实现这样的系统。使用没有串行端口的新PC，我们可以通过添加USB虚拟COM端口来使用相同的系统。我感谢作者给我关于串口链接的最新知识。