Re: Getting NMEA data out from gpsd for use in u-center

[Nick Taylor]

Hi

We have managed to get NMEA data stream from gps device using kplex.

I think you should be able to split the feed with kplex to feed local gpsd and provide data on a port

Nick

On 2 Oct 2021 at 07:53, David Taylor <gm8arv@yahoo.co.uk> wrote:

The aim is to get u-blox u-centre watching the NMEA output from a gps device.  

The gps is connected to a Raspberry Pi and running the latest gpsd correctly.  

I've searched for answers but they elude me.  Using Telnet on the Pi itself  

produces a JSON header line



Questions:



1.  My understanding is that gpsd can output data on TCP/2947, however when  

trying to connect to a the RPi from the PC I get:



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

C:UsersDavid>telnet raspi-25

(standard login/password prompt, can connect OK)



C:UsersDavid>telnet raspi-25 2947

Connecting To raspi-25...Could not open connection to the host, on port 2947:  

Connect failed

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



but connecting from the RPi itself gives a JSON text line





2. There is mention of JSON coming from port 2947.  Is there a way of getting  

NMEA rather than JSON, or some program/function to send continuous NMEA on  

another port?



3. I see that once the JSON line arrives, nothing else does.  Ideally I would  

just like a copy of the NMEA stream the GPS is sending to gpsd.



Thanks,

David

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