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

[Richard Morgan]

Thanks all.

My assumption would be that the bank-hols won't change the much so no need
for internet access and likely RTC module for timekeeping.

In terms of power-draw - thinking about it the LED display being large
would I guess need more than battery power for a prolonged period (could I
set it to power down the lights at set times of day/week maybe). I think
Raspberry Pi might be overkill but I'm no expert.

Not set on what the display is so open to suggestions/guidance - I am a
newbie so something straightforward to interface would be helpful for me.

Thanks all,

Richard


On 28 January 2016 at 09:37, Alan Cox <alan at lxorguk.ukuu.org.uk> wrote:

> > 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...
>
> I would think pretty much any tiny microcontroller can do it. SPI rtc,
> SPI led driver and that's about it. The program ought to be tiny and the
> data file you need is 366 bits. Even the lazy man's version is going to be
> under 1KB (table with the correct number to show for each 'day of the
> year').
>
> A PI would be able to run ntp, scrape the government web sites and adjust
> if they change the official bank holiday list but does draw somewhat
> higher power.
>
> Alan
>



-- 
Kind regards,

Richard
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