Re: serial console
On Thu, Jul 31, 2025 at 01:38:15 +0100, mick.crane wrote:
> serial console/ parallel is likely me not understanding terminology.
> These Raspberry Pis, Arduinos with the connection with all the pins, what
> protocol is that expecting?
A serial cable usually has a 9-pin (DB-9) connector on each end.
A parallel cable usually has a 25-pin (DB-25) connector on one end,
and either another DB-25 connector or a mini-Centronix connector on the
other end.
See pictures at <https://en.wikipedia.org/wiki/Parallel_port>.
Typically, parallel ports have been used for printers. The Iomega Zip
drive also had a parallel port interface, but wasn't super popular.
Serial ports have commonly been used for teletypes/terminals, mice,
and a wide variety of other instruments and devices.
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