[time-nuts] Ublox 8T

[Philip Gladstone]

I have used the assembly service from jlcpcb a few times for small runs --
it is absurdly cheap *if* you are using common surface mount components and
cheap for the less common ones. I then hand solder the connectors on when I
get the boards.

Philip

On Wed, Dec 9, 2020 at 3:27 PM Matthias Welwarsky <time-nuts at welwarsky.de>
wrote:

> On Mittwoch, 9. Dezember 2020 14:57:55 CET Bob kb8tq wrote:
> > Hi
> >
> > I think the key point is:
> >
> > *IF* somebody wants to do a layout using the M8T, Bert already *has* a
> > “known good” PCB layout footprint in his inventory of useful stuff. Since
> > the uBlox is a really odd part, you aren’t going to find that footprint
> > built into the standard layout programs.
>
> I have a known-good footprint and symbol for KiCAD, if anyone is
> interested. I
> also have KiCAD project for a small breakout board. It's not too
> featureful,
> no antenna power switching or monitoring, no support for antenna power
> other
> than from the built-in LDO. However, it has been successfully used in a
> GPSDO
> project. All components are hobbyist-friendly 0805, except for a LDO with
> SOT-23-5 footprint.
>
> >
> > Bob
> >
> > > On Dec 8, 2020, at 6:26 PM, Bill Notfaded <notfaded1 at gmail.com> wrote:
> > >
> > > That's a really old board though.  An 8 series isn't pin compatible
> with
> > > say LEA-6T is it?  The picture had a 5 series in it.
> > >
> > > Could you use something like this?
> > >
> https://github.com/PaulZC/NEO-M8T_GNSS_FeatherWing/blob/master/LEARN.md
> > >
> > > Bill
> > >
> > > On Tue, Dec 8, 2020, 10:30 AM Gregory Beat via time-nuts <
> > >
> > > time-nuts at lists.febo.com> wrote:
> > >> There are various Breakout (bare) Boards for the uBlox modules posted
> on
> > >> Internet.
> > >> SparkFun has carried them, in the past, and sometimes sold the bare
> > >> boards
> > >> without the uBlox module.
> > >> https://www.sparkfun.com/products/15005
> > >>
> > >> StuartsProjects (Stuart Robinson, Cardiff, UK) has a bare board for
> the
> > >> Ublox MAX M8Q module.  Sold on Tindie, used in high-altitude balloon
> > >> projects.
> > >>
> > >>
> https://www.tindie.com/products/stuartsprojects/ublox-max-8mq-gps-breakou
> > >> t-board-x-2/
> > >>
> > >> Contact Limor “Ladyada” Fried at Adafruit, she might have bare boards
> OR
> > >> Gerbers for earlier or future products.
> > >> https://www.adafruit.com/?q=gps+breakout&p=1&sort=BestMatch
> > >>
> > >> Dan Watson designed one, for the 6-series five years ago.
> > >> He sometimes posted Gerber files.
> > >>
> > >>
> http://syncchannel.blogspot.com/2015/09/a-nearly-perfect-u-blox-gps-break
> > >> out.html
> > >>
> > >> greg
> > >> w9gb
> > >> ==
> > >> Date: Mon, 7 Dec 2020 09:47:55 -0500
> > >> From: paul swed <paulswedb at gmail.com>
> > >> To: Discussion of precise time and frequency
> > >>
> > >>   measurement <time-nuts at lists.febo.com>
> > >>
> > >> Subject: Re: [time-nuts] Ublox 8T
> > >>
> > >> Bert Very attractive price. They appear to be on a cut out circuit
> board.
> > >> How are you connecting to them please?
> > >> Regards
> > >> Paul.
> > >> WB8TSL
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