[time-nuts] ``direct'' RS-232 vs. RS-232 via USB vs. PPS decoding cards

MLewis mlewis000 at rogers.com
Tue Feb 14 01:15:21 EST 2017

On 14/02/2017 12:24 AM, Chris Albertson wrote:
> Pretty dramatic difference between a "real" serial port and USB.  Like two
> orders of magnitude or more.
> If you computer lacks a serial port, just buy a new computer.  The
> Raspberry Pi or the like costs about $40.... the serial port has a pin that is tied to an interrupt.  If
> you read the code associated with that interrupt it is like maybe 4 or 6
> lines of C and VERY simple.
> ...

Great for picking up the PPS.
Know of any with an Ethernet port, preferably two, that aren't run from 
a USB controller?


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