[time-nuts] Re: Long Duration elapsed time display

[Jim Lux]

LED display and a Pi with a PoE hat. Off the shelf, the timing part is basically stock. 
So now your hunt is for a suitable LED display (assuming you don't have a spare one that you can open up and modify).


On Thu, 28 Aug 2025 18:18:31 -0400, Martin A Flynn via time-nuts <time-nuts at lists.febo.com> wrote:

Would like to cosmetically match a pair of existing 4" LED local clocks
(Local and UCT) that are PoE and source their time via NTP if at all
possible.

Prefer a COTS solution if at all possible,

Martin

On 8/28/2025 4:09 PM, Dana Whitlow via time-nuts wrote:
> Does it need to run off internal batteries on a single charge? Or is it
> OK for it to require AC line power?
>
> How about a cheap old smartphone with a stopwatch app installed, powered
> from a wallwart USB charger. This should keep running despite power failures,
> provided they don't last too long.
>
> Dana
>
>
> On Thu, Aug 28, 2025 at 2:44 PM Martin A Flynn via time-nuts <
> time-nuts at lists.febo.com> wrote:
>
>> Have a project underway that includes a long duration elapsed time
>> display. Would need to count to T+ 999 hours, 59 Minutes, 59 seconds.
>>
>> Ideas on how to accomplish this? LED preferred, can be also use an LCD
>> computer monitor as well.
>>
>> Cheers!
>>
>> Martin
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