I use NTP. I pull time from the RTC until I get a a sync from the internet
- then I switch to the internet and I update the RTC whenever I get an
update from the network. It all uses UTC, which is converted to local time
for display.
On Wednesday, September 29, 2021 at 2:01:32 PM UTC-4
I'm using network time that my Raspberry Pi re-acquires roughly every 20
minutes, with a DS3232 for backup when the internet is down. I need to
tweak the software a bit more to automatically update the DS3232; right now
I have to use my debug utility to manually update it. But this does allow
My NIXIE clocks have an on-board GPS receiver and I set the DS3232 to
generate a 1 PPS output. On power-up I sanity check the internal registers
and if it looks good I
transfer the date and time to the uP memory. I pre-increment the internal
time and at the PPS IRQ I update the display RAM from
That's an HP 5216A Counter with the upside down B5560 Nixies. I have one,
it's a cool piece.
On Wednesday, September 29, 2021 at 9:13:04 AM UTC-4 Tomislav Kordaso wrote:
> https://www.youtube.com/watch?v=J8hLqpigv1g
> Electronic counter by HP at about 9:05 minute mark.
>
>
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You received
My latest scope clock uses a DS3232 RTC chip for general timekeeping. This
chip only keeps time to the nearest second, as far as the user-readable
registers are concerned.
I also have a USB port that can read the time from a GlobalSat GPS puck.
This reports the time once a second through the
