There’s a problem with it, though: normally, the Sherline CNC controller runs off the parallel port. While some of us still have a Windows 98 battlestation sitting around, [David] doesn’t.

[Fernando] wrote in to share his take on building a logic analyzer. He’s using the parallel port to capture data and feed it to the display software of your choice. The method depends on a ...

In the past, the parallel port was widely used for printers and occasionally for connecting other devices externally, but was superseded by USB. Although some business printers may still offer ...