[Swansea Hackspace] Daily Countdown (but working days not calendar)

[Ceri Clatworthy]

You can get the super accurate RTC  module with battery. .. For pi and
dweeno
>From China.
For less than I can buy the chip from farnell

One of them is guaranteed +/- 4 seconds a year  !!!!!!!
On 28 Jan 2016 08:49, "Justin Mitchell" <justin at swansea.hackspace.org.uk>
wrote:

> The date handling isnt all that hard that it would dictate the level of
> device needed, its just simple integer maths.
>
> my concerns would more be:
> a) what is the interface to the display, how much work is required in
> driving it ?
>
> b) where do you intend to get the current date from, a RTC module, or
> from the internet ?
>
>
> On Thu, 2016-01-28 at 08:26 +0000, Richard Morgan wrote:
> > It will track a single event - after that I might programme it for a
> > new date but it will be one date only.
> >
> >
> > I would specify the bank holidays to ensure it's counting down the
> > days accurately.
> >
> >
> >
> > On Thursday, 28 January 2016, Ceri Clatworthy
> > <ceri.clatworthy at gmail.com> wrote:
> >         Are you going to specify bank holidays weekend etc.
> >
> >         If this is a ONE OFF  then it probably is going to be fairly
> >         simple.
> >
> >         But if it is for many events. . Bit more code.
> >         Possibly a windows PC program to generate a data file on SD or
> >         simmla
> >
> >         Ceri
> >
> >         On 28 Jan 2016 08:06, "Richard Morgan"
> >         <richard.morgan at avocation.co.uk> wrote:
> >                 Hi All,
> >                 I want to create a large office display 'countdown'
> >                 clock to a specific date...but...I want it to
> >                 countdown 'working days' and not just calendar days!!
> >                 =:-O
> >
> >
> >                 I would need to be able to programme in the
> >                 bank-holidays and weekends so that they can be
> >                 excluded and the 'days left number' is accurate as the
> >                 weeks progress...
> >
> >
> >                 It would need to be a large 3 digit LED display for
> >                 the days left countdown to be visible across the
> >                 office.
> >
> >
> >                 Ideally it would be something that I could run off a
> >                 re-chargeable battery pack for portability but
> >                 plugging in would be okay.
> >
> >
> >                 Would this be a Raspberry Pi project or would you
> >                 recommend an Arduino?
> >
> >
> >                 All suggestions very gratefully received...
> >
> >
> >
> >                 Richard
> >
> >                 _______________________________________________
> >                 Hackspace mailing list
> >                 Hackspace at swansea.hackspace.org.uk
> >
> http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
> >
> >
> >
> > --
> > Kind regards,
> >
> > Richard
> > _______________________________________________
> > Hackspace mailing list
> > Hackspace at swansea.hackspace.org.uk
> > http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
>
>
>
>
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