[time-nuts] PPS clock module

Tom Holmes tholmes at woh.rr.com
Mon Jan 28 02:04:54 UTC 2019


John...

I have a nixie tube clock that I purchased at Hamvention about 10 years ago that had an optional chip which worked with a 1 PPS input. It was built around a PIC.

Tom Holmes, N8ZM

-----Original Message-----
From: time-nuts <time-nuts-bounces at lists.febo.com> On Behalf Of Bob kb8tq
Sent: Sunday, January 27, 2019 4:34 PM
To: Discussion of precise time and frequency measurement <time-nuts at lists.febo.com>
Subject: Re: [time-nuts] PPS clock module

Hi

I don’t think anybody runs a clock off of a PPS :)  That would be nutty …. 

The closest I have seen is to womp up a “pulse 60 times” gizmo. Drive that off of the PPS. Feed the output 
into something designed for use in a bedside clock. I’d guess an 8 pin PIC and a few (dozen) lines of code
is the quick way to do it. The obvious problem is that if the PPS is correct, the clock is not going to roll over 
on the PPS edge (unless the module accepts the 60 pulses at a very fast rate ….. who knows …. )

Bob

> On Jan 27, 2019, at 3:48 PM, John Ackermann N8UR <jra at febo.com> wrote:
> 
> I'm putting together a portable Rb standard and thought it would be nice to include a clock on the panel.  I probably haven't hit the magic search words, but I haven't found what I'm looking: a module (no enclosure) that is driven by an external PPS and shows at least HH:MM:SS in 24 hour format on a small LED or LCD display.
> 
> I can whip something together with an Arduino, but rather than reinvent the wheel I thought I'd ask if anyone knows of something that's ready to go.
> 
> Thanks,
> John
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com
> To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
> and follow the instructions there.


_______________________________________________
time-nuts mailing list -- time-nuts at lists.febo.com
To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
and follow the instructions there.





More information about the Time-nuts_lists.febo.com mailing list