Re: Help needed with USB GPS device

[Gary E. Miller]

Yo Gavin!

On Sun, 3 Mar 2024 23:04:56 +0000
Gavin Davenport <gavdav@gavdav.net> wrote:

> The machine I'd like to connect a better quality gps time source to
> is: https://www.jetwaycomputer.com/spec/NF9HG.pdf
> It has an internal, unused RS232 9-pin connector.

$20 says it is not real RS232.  Real RS-232 is +/- 12V.  That is probably
0-5V.  Which works perfectly with the 1st basreboard I sent.

> >> And yet, you just passed over the one I sent, without saying why
> >> you find it not suitable.  
> I'm saying I can't use that board without a soldering iron and a
> complete lack of packaging. 

You can buy them presoldered.  An old pill bottle will work for packaging.

> >> The serial port on your PC, or Raspberry Pi.  Easy.  
> I don't have a raspberryPi. I have an internal 9 pin rs-232
> connector, which isn't plug compatible with the board you've linked

Once again, $20 says it is not really RD-232, and anther $20 that
my board will work fine, using a few jumpers.

> >>Or to a USB/Serial cable, like this:
> >>https://www.ebay.com/itm/134189916686  
> Another loose board. I'm sensing a theme here. I don't wish to build
> something myself.

You wanted cheap, now you want fancy.  You can pick one.

> >> Smart shopping is required.  
> Yes, fair point, but it kind of assumes you know what you need, and
> it's clear (as I've already pointed out isn't the case) that devices
> clearly state their capabilities to the layman.

As you discovered, GNSS, and gpsd is not for the layman.
 
> >> Or get a friend to 3D print a case for the one I just posted.  
> Quite a big assumption there. Some people aren't interested in this
> kind of approach.

Many ways to skin this cat.  As my mind reading skill are diminished due to
the solar flare, I have to throw out ideas to see what works for you.

> >> I know that Navspark has USB GPS with PPS in a mouse form factor.  
> Thanks. I can't find it yet.

#1 hit on google:

http://www.navspark.com.tw/

Send them an email.  I don't see the modules there right now, but they may
tell you who has stock.

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

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    "If you can't measure it, you can't improve it." - Lord Kelvin

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