[time-nuts] Wall Clock that takes 1PPS input

[paul swed]

Jerry you are right. See what it does on the original oscillator and match
it. With respect to advancing you can't go to crazy as the unit will
stutter. I want today I can advance the clocks I have at about 15 sec for 1
minute. Maybe faster.
Anarduino will be very fine for what you are doing.

On Thu, Jan 2, 2020 at 6:33 PM Jerry Hancock <jerry at hanler.com> wrote:

> I’ll have to go read about the Lord Vetinari clock.  He is one of my
> favorite book characters.
>
> Thanks for all the tips.  I might have an old quartz clock around here to
> test.  I assume I can just measure the pulse while it is running and
> generate the same with the 1PPS output.  I’ll have to program a way to
> advance it, maybe use an Arduino or some other micro and add a few switches.
>
>
>
> > On Jan 2, 2020, at 12:43 PM, Philip Gladstone <
> pjsg-timenuts at nospam.gladstonefamily.net> wrote:
> >
> > It depends on how much work you want to do. I have various clocks driven
> > off 1PPS (or 2PPS) signals. The cheapest approach is to take almost any
> > quartz clock with a second hand and drive the coil directly (you need to
> > pulse with alternate polarities -- i.e. there are even and odd pulses).
> >
> > I was introduced to this technique by building a Lord Vetinari clock
> (e.g.
> > https://www.instructables.com/id/Lord-Vetinari-Clock/ )
> >
> > I purchased something like
> >
> https://www.ebay.com/itm/8-5-INCH-KAPPA-SHIPS-BOAT-YACHT-MARINE-RADIO-ROOM-SLAVE-NAVIGATION-CLOCK/143072681993?hash=item214fcbe009:g:Gn8AAOSwYTtcKPIp
> > and
> > it turned out to be a 2PPS clock....
> >
> > Fun getting this stuff working!
> >
> > On Thu, Jan 2, 2020 at 3:32 PM Jerry Hancock <jerry at hanler.com> wrote:
> >
> >> Hello,
> >>
> >> I looked around but can’t find a wall clock that would take a 1PPS input
> >> signal to drive the minutes and seconds.  I’ve made digital modules
> using a
> >> lot of different displays but would love to have a large, 14” or so
> with a
> >> second hand, wall clock that I can drive with 1PPS.  The old IBM clocks,
> >> etc I found take a pulse on the minute.  I have an old pendulum clock I
> can
> >> drive with a solenoid but thought I would ask here before going that
> route.
> >>
> >> Signal levels aren’t important.
> >>
> >> Thanks
> >>
> >> Jerry
> >>
> >>
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> Jerry Hancock
> jerry at hanler.com
>
>
>
>
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