And somewhere out on the net, instead of "novelty" or "alternate
timebase" clocks, for a "normal" clock someone was putting a DS1302 or a
D1307 into the mini quartz movement.
I'd love to see a DS3231 dropped in for that task.
DS1307 ~5 minutes per month
DS3231 ~few minutes per year, +/-2 ppm, with some reportedly getting
under 1 ppm?
https://www.maximintegrated.com/en/products/digital/real-time-clocks/DS3231.html
o Accuracy �2ppm from 0�C to +40�C
o Register for Aging Trim
Then, can one drop a DS3231 into the "continuous sweep" 16 steps per
second (quiet) movements.
On 05/01/2019 5:38 PM, paul swed wrote:
That is interesting. Thank you
On Sat, Jan 5, 2019 at 4:59 PM Ron Bean <[email protected]> wrote:
paul swed <[email protected]> writes:
Not sure who it would be but the reason to want to use a 1 pps step is its
easy to clock.
As a side note: There's a replacement driver board on Tindie that uses
an Arduino clone to program the behavior of a quartz clock movement. The
firmware is open source, so you can modify it any way you like. This
could be driven from an external time signal without too much trouble.
(As presented, the accuracy is not all that great, but you guys know
how to change that...)
https://www.tindie.com/products/nsayer/crazy-clock/
"customized lavet stepper motor clock movement controller"
"Designed by Geppetto Electronics, Ships from United States of America"
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