e Pico's other USB communications,
   so it doesn't interfere with any other functions.
</p>
<p>
   If you're using Windows 10 or later, Windows comes with built-in support for
   virtual USB COM ports, so this is completely plug-and-play on the Windows side.
   For earlier versions of Windows, you have to install a device driver, known as
   a USB CDC port driver.  Unfortunately, Microsoft never released standard
   generic USB CDC drivers for Windows 8 or earlier, even though CDC is a
   standard USB prot