Raspberry Pi HOWTO progress
Eric S. Raymond
esr at thyrsus.com
Tue Apr 26 23:59:59 UTC 2016
Gary E. Miller <gem at rellim.com>:
> And how many YEARS to get there? Plus you needed to buy a soldering iron,
> solder, flux, solder sucker, etc.
Nah, I just borrowed Phil's. :-)
> Here is a nice HAT presoldered, $31:
>
> http://www.dx.com/p/add-on-gps-module-gps-hat-module-for-raspberry-pi-2-model-b-b-424254
> http://www.raspberrypiwiki.com/index.php/Raspberry_Pi_Add-On_GPS_HAT_Module
Hm, that's cheaper than the Adafruit HAT unsoldered. I feel a
revision coming on.
> > > > (The device is shipped as parts almost certainly to evade a
> > > > regulatory requirement for FCC conformance testing to RF emission
> > > > standards, which is expensive and would have added to the unit
> > > > cost.)
> > >
> > > Irrelevant. Probably wrong.
> >
> > You can argue this with Phil at Penguicon.
>
> Or argue with the guy mentioned above shipping it preassembled.
Who's in Taiwan, I'm guessing, and expecting he'll fly under regulatory
radar long enough to make a few bucks. It's happened before.
> > > How to expand?
> >
> > There's an option for it in both configurators.
>
> Link?
Dunno how to give a link to a button in a GUI, sorry.
> > > Gack, this only works AFTER you have pinged the pi! It will not
> > > help you find the pi.
> >
> > I just shut down the Pi, booted it, and arp -a found the address
> > before I pinged it.
>
> Reassigned same old address? Check the age. Your laptop is not
> in promicuous mode.
Hm. Can't tell. Maybe I should just drop everything but the .local method.
> > > > In all versions, you force the driver to be loaded by
> > > > editing /etc/modules to contain the line "pps-gpio". > > >
> > > Or compile it in the kernel, like a real man would do.
> >
> > We're trying to keep things simple, here.
>
> Yes, but no need to describe, mention the possiblity.
Ah. Will do.
> > > > # Internet time servers for sanity
> > > > server 0.pool.ntp.org iburst prefer
> > > ^^^^^^ huh???
> >
> > Got me. I don't know what that does either. It's from <<NEVILL>>.
> > It'd be nice to add an explanation. Perhaps Hal knows.
>
> Yuo don't want to prefer any random internet chimer, you prefer you local
> GPS.
OK, added.
> > > Ho about using the us pool? Or local country pool??
> >
> > Config file was witten by a Brit.
>
> Then it shoulda used Brit chimers. Or point to an extended tutorial
> elsewhere.
I'll take a recommendation.
> > > Talk about 'ntpq -p'.
> >
> > Suggested wording welcome. I've barely ever used it.
>
> See the gpsd time keeping howto, or just refer to it.
On the TODO list
--
<a href="http://www.catb.org/~esr/">Eric S. Raymond</a>
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