Raspberry Pi HOWTO progress

[Dan Poirot]

Wait... So is GEM going to put together a more-better shopping list???

...I am digging the way retro antenna!

- dan


-----Original Message-----
From: devel [mailto:devel-bounces at ntpsec.org] On Behalf Of Gary E. Miller
Sent: Tuesday, April 26, 2016 4:38 PM
To: Eric S. Raymond <esr at thyrsus.com>
Cc: devel at ntpsec.org
Subject: Re: Raspberry Pi HOWTO progress

Yo Eric!

On Tue, 26 Apr 2016 17:03:39 -0400
"Eric S. Raymond" <esr at thyrsus.com> wrote:

> Unless called out here I just merged your changes,
> 
> Gary E. Miller <gem at rellim.com>:
> > Don't do it!  How long did it take to get you to solder???  
> 
> Once I decided to learn it, all of about 15 minutes from a cold start.

And how many YEARS to get there?  Plus you needed to buy a soldering iron,
solder, flux, solder sucker, etc.

> My instructor allows how I got *good* at it quickly, too; I thank my 
> Swiss-German clockmaker ancestors :-)

Can you ship Phil with every copy of the HOWTO?

> > Don't do it!  You can buy similar already assembled.  
> 
> Source?

Here is a nice HAT presoldered, $31:

http://www.dx.com/p/add-on-gps-module-gps-hat-module-for-raspberry-pi-2-mode
l-b-b-424254
http://www.raspberrypiwiki.com/index.php/Raspberry_Pi_Add-On_GPS_HAT_Module


> > > (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.

> > How to expand?  
> 
> There's an option for it in both configurators.

Link?

> > 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.

> > > 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.

> > > # 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.

> > 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.

> > Talk about 'ntpq -p'.  
> 
> Suggested wording welcome.  I've barely ever used it.

See the gpsd time keeping howto, or just refer to it.

> > Or do: # dmesg | tail
> 
> I'd prefer not to.  dmesg tends to be a firehose, and cryptic to boot.

Thus the '| tail'.  The info you want will be right on the last line.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
	gem at rellim.com  Tel:+1 541 382 8588