[time-nuts] Lowest Power NTP Server

[David]

I'd think one of the ESP32's would be a fine choice. They have some good power management options to wake up periodically to do the work, making for even lower power consumption.

Looks like someone has already written some code that could be adapted?

https://github.com/DennisSc/PPS-ntp-server/blob/master/README.md

-David

-------- Original Message --------
On Dec 1, 2019, 09:49, Bob kb8tq wrote:

> Hi
>
> So something like one of the many ESP32 based boards?
>
> Of course when it comes to the “code from scratch” part there is the problem that I’m
> pretty (most would say very …) lazy :) :) :)
>
> Bob
>
>> On Dec 1, 2019, at 12:29 PM, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
>>
>> --------
>>
>> You can do better than RPi, since a NTP server basically
>> only needs to understand two packets: IP/UDP at port 123
>> and ARP packets.
>>
>> There are WiFi enabled microcontrollers that could be taught how
>> to do that, but you'd have to write up your NTP daemon from scratch
>> which is not hard when you do not have to do the "sync clock from
>> remote servers" part.
>>
>>
>> --
>> Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
>> phk at FreeBSD.ORG | TCP/IP since RFC 956
>> FreeBSD committer | BSD since 4.3-tahoe
>> Never attribute to malice what can adequately be explained by incompetence.
>
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