[time-nuts] Re: Clock display on Linux systems?

[folkert]

You can also let them boot from nfs.

On Tue, Dec 07, 2021 at 10:01:13AM +0200, Anders Wallin wrote:
> We use this simple python script with RPi and a 7" RPi screen in many labs
> just to have a simple clock display. AFAIK the timing and update rate is
> good enough for human visual readout.
> The RPis get time over NTP.
> https://github.com/aewallin/digiclock
> In this application RPis seem to last for many years - in others where we
> use the SD-card (e.g. influxdb or similar) they seem to regularly fail in
> 1-2 years, requiring an reformat or new SD-card. An RPi or similar with a
> more robust SSD/M2 drive would be good.
> 
> Anders
> 
> On Tue, Dec 7, 2021 at 3:15 AM Hal Murray <halmurray at sonic.net> wrote:
> 
> > > I would advise against using python for something like this.
> > > time.sleep() of python is extremely inaccurate.
> >
> > Where/when/what/how did you get that idea?
> >
> > I've had no problems with Python timing.  Am I not looking
> > in the right place?  Were you using some really old
> > software or hardware?
> >
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Folkert van Heusden

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