[time-nuts] PPS clock module

[John Franke]

I run my workshop clock off the 1PPS output from a Jupiter GPS receiver. The 1PPS drives a 0-59 TTL counter that displays seconds on two Nixie tubes. The one pulse per minute output is conditioned to drive a Standard Electric Time Co. secondary movement. I find it interesting to have a clock using technology from 1900, 1950, and 2000. 

John WA4WDL

> On Sun, Jan 27, 2019 at 10:01 PM Bob kb8tq <kb8tq at n1k.org> wrote:
> 
> > 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
> > >
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