[ntp:questions] Embedded solutions

detha detha at foad.co.za
Sun Jul 6 06:25:16 UTC 2014

On Sat, 05 Jul 2014 23:37:05 +0000, Jaap Winius wrote:

> Hi folks,
> Has anyone here managed to turn a relatively cheap, ARM-based embedded
> system with a serial port into a decent stratum 1 NTP server?
> Thus far I've always attached my GPS and radio time signal receivers to
> much larger x86 hardware platforms, but those machines have other things
> to do and make the NTP server less stable than it can be. However, if I
> were to use dedicated hardware for the NTP server, I'd rather it power-
> efficient and as cheap as possible.
> I've looked at the BeagleBone Black (with an RS232 Cape) and the Wandboard
> (both ARM platforms), but have not had any success with them. There are
> stories stories of people who have done it with Soekris hardware (x86),
> but that's much more expensive.

A fair amount of info on a Raspberry Pi based solution can be found at

I have been running something based on this for the last year or so, and
all I can say is 'it works for me'. Be sure to include some form of
external RTC though.


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