Of course, this wasn’t my final code, but it shows how easy it was to write some portable code to work with the serial port.

Ok, the title is a bit misleading. Like most things in life, it really isn’t infinite. But I’m going to show you how you can use a very interesting Linux feature to turn one serial port… ...

Before USB ports became standard on PCs, several devices connected through a serial port. They're obsolete in many ways, but they still see some use.