[time-nuts] Lady Heather Server On Raspberry Pi 2 Model B?

Ralph Smith ralph at ralphsmith.org
Thu Jan 14 18:06:33 UTC 2016

What do you know, someone beat me to it, dragging up my old tboltd. I will
check this out on the Raspberry Pi over the next few days, but it should
be close to working right out of the box.


> On Wed, January 13, 2016 8:30 am, Nick Sayer wrote:
>>> No, ntpd would be getting time from the serial port, not from the
>>> network socket.
>> You're right. I may be wrong, but I would expect that either gapd or
>> ser2net would want to open the serial device exclusively, which would
>> spoil things.
> ...
>> You might investigate whether you could make some sort of intermediate
>> service that could be a client of gpsd and provide the listening socket
>> for LH.
> That is the right approach, and someone has already done that.
> If I had seen this before I completely forgot, but my old friend N5TNL
> pointed me to:
> Original code written for BSD:
> http://ralphsmith.org/~ralph/thunderbolt.tar.gz
> Patches for linux and info by Leigh Klotz (WA5ZNU):
> http://wa5znu.org/2011/08/tbolt/
> The  original announcement for the BSD version was almost 6 years ago by
> Ralph Smith:
> https://www.mail-archive.com/time-nuts@febo.com/msg26128.html
> The follow-up by Leigh was right at 4 years ago:
> https://www.febo.com/pipermail/time-nuts/2012-January/062566.html
> Summary is the thunderboltd service runs and communicates with the
> Thunderbolt, provides a network port for Lady Heather to connect to for
> remote display and control of the Thunderbolt, and places the time into a
> shared memory region for ntpd to pick up.
> It works on x86, so I'm getting ready to install an ARM compiler to see if
> it compiles cleanly for ARM.  I don't have the right RS232 level
> translator yet to connect my Thunderbolt to my ARM system (BeagleBone
> Black in my case, not RPi), so I can't check it out directly yet.
> --
> Chris Caudle
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