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Recording a NMEA GPS stream

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peter(at)sportingaero.com
Guest

Posted: Mon Aug 20, 2012 1:03 pm Post subject: Recording a NMEA GPS stream

Guys,

     

     Does anyone know anything about Arduino     boards? Can these devices be used to monitor an NMEA datastream and     record to USB stick or SD card?

     

     This may sound really basic to some, but it is a question that has     been occasionally exercising my brain on and off for some years, how     to record the NMEA datastream from a GPS device? About 12 years ago     I was involved in re-instrumenting a glider that required the GPS to     provide data to a glide computer that provided data to a PDA. I had     only worked with 1553 before that and had to learn about NMEA. The     PDA software vendor provided a utility that would record the     datastream - which was very useful in debugging that installation.

     

     Since then I have occasionally wanted to record a NMEA datastream,     but not so much that I really looked into it seriously. I have     recently re-built       my panel. The GPS feeds into the EFIS are not working properly     so now I need a datastream monitor - this device seems like     it might do the trick.

     

     Does anyone have any experience using such a board or are there any     resources on-line that explain how to do this?

     

     Thanks, Pete

      [quote][b]

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nuckolls.bob(at)aeroelect
Guest

Posted: Mon Aug 20, 2012 1:44 pm Post subject: Recording a NMEA GPS stream

At 04:01 PM 8/20/2012, you wrote:

  	  Quote: 	
		  Guys,



 Does anyone know anything about Arduino boards? Can these devices be used to monitor an NMEA datastream and record to USB stick or SD card?

 	


   Sure. There are several add-ons to the

   generic Arduino boards to talk to SD cards,

   thumbdrives, etc.



  http://tinyurl.com/8m7m7sb



   The NMEA data stream is plain vanilla

   RS232 levels and formatted data streams

   of data delivered in a series of bytes.



   I'm sure you could set up a board to

   simply record the data as presented or

   you could parse the string out to record

   say lat, lot, gs, crs, and date-time . . .

   a sort of second by second logbook of where

   you've been and how fast you got there.



 

 

   Bob . . .    [quote][b]

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peter(at)sportingaero.com
Guest

Posted: Mon Aug 20, 2012 1:55 pm Post subject: Recording a NMEA GPS stream

Well, a little more surfing has revealed this device 

     

     ArduLog Data       Logger

     

     looks like what I need, and less than £15. I know this is a UK site,     but similar stuff must exist in the US. I guess 5v from a GPS     cigarette lighter power supply will work to power it.

     

     Pete

     

     On 20/08/2012 22:01, Peter Pengilly       wrote:

     

     [quote]              Guys,

       

       Does anyone know anything about Arduino boards? Can these       devices be used to monitor an NMEA datastream and record to USB       stick or SD card?

       

       This may sound really basic to some, but it is a question that has       been occasionally exercising my brain on and off for some years,       how to record the NMEA datastream from a GPS device? About 12       years ago I was involved in re-instrumenting a glider that       required the GPS to provide data to a glide computer that provided       data to a PDA. I had only worked with 1553 before that and had to       learn about NMEA. The PDA software vendor provided a utility that       would record the datastream - which was very useful in debugging       that installation.

       

       Since then I have occasionally wanted to record a NMEA datastream,       but not so much that I really looked into it seriously. I have       recently re-built          my panel. The GPS feeds into the EFIS are not working       properly so now I need a datastream monitor - this device       seems like it might do the trick.

       

       Does anyone have any experience using such a board or are there       any resources on-line that explain how to do this?

       

       Thanks, Pete

        	  Quote: 	
		  

	
     [b]

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nuckolls.bob(at)aeroelect
Guest

Posted: Mon Aug 20, 2012 2:04 pm Post subject: Recording a NMEA GPS stream

 	  Quote: 	
		   The GPS feeds into the EFIS are not working properly so now I need a datastream monitor - this device seems like it might do the trick. 	


   Hmmm . . . I missed this point the first pass through

   your query. For a troubleshooting monitor, you may

   be better served with a lap-top configured with an

   RS-232 to USB adapter and a utility to read data

   streams and put them up on the screen in real time

   either as a scrolling presentation . . . or parse

   of some interesting words and display current values

   in a box on the screen.



   I used to do this kind of stuff all the time at

   Beech/RAC/HBC. I could get my laptop and data acquisition

   system going and installed before the legacy service

   organizations could get their work orders approved

   and funded. Damn it was nice to have a dedicated

   budget for such things!



   Did all my lap-top work in compiled basic.



 

 

   Bob . . .    [quote][b]

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loboflyer(at)gmail.com
Guest

Posted: Mon Aug 20, 2012 8:45 pm Post subject: Recording a NMEA GPS stream

If you're really interested in embedded programming and you want to avoid the laptop, the Arduinos probably will fit the bill.  However, if you just want to troubleshoot NMEA, then a laptop with serial port (or USB adapter) and software would be fastest.  You can probably tap off the GPS' TxD pin to your laptop's RxD pin.

 

A Google search turns up a few programs, none of which I have experience with, but all look useful of some sort.



http://www.visualgps.net/visualgps/

http://homepage2.nifty.com/k8/gps/

 http://www.aviadesign.com/Monitor/

  -Jeff-



On Mon, Aug 20, 2012 at 4:00 PM, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:

 [quote]   	  Quote: 	
		   The GPS feeds into the EFIS are not working properly so now I need a datastream monitor - this device seems like it might do the trick. 	




   Hmmm . . . I missed this point the first pass through

   your query. For a troubleshooting monitor, you may

   be better served with a lap-top configured with an

   RS-232 to USB adapter and a utility to read data

   streams and put them up on the screen in real time

   either as a scrolling presentation . . . or parse

   of some interesting words and display current values

   in a box on the screen.



   I used to do this kind of stuff all the time at

   Beech/RAC/HBC. I could get my laptop and data acquisition

   system going and installed before the legacy service

   organizations could get their work orders approved

   and funded. Damn it was nice to have a dedicated

   budget for such things!



   Did all my lap-top work in compiled basic.



 

 

   Bob . . .    



[b]

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peter(at)sportingaero.com
Guest

Posted: Tue Aug 21, 2012 12:13 pm Post subject: Recording a NMEA GPS stream

Thanks for all the pointers - I don't have a laptop at present so     figured a small datalogger would be cheaper!

     

     Peter

     

     On 21/08/2012 05:44, Jeff B. wrote:

     

     [quote]If you're really interested in embedded programming       and you want to avoid the laptop, the Arduinos probably will fit       the bill.  However, if you just want to troubleshoot NMEA, then a       laptop with serial port (or USB adapter) and software would be       fastest.  You can probably tap off the GPS' TxD pin to your       laptop's RxD pin.

       

       A Google search turns up a few programs, none of which I have       experience with, but all look useful of some sort.

       

       http://www.visualgps.net/visualgps/

       http://homepage2.nifty.com/k8/gps/

       http://www.aviadesign.com/Monitor/

       

       

         -Jeff-

       

       On Mon, Aug 20, 2012 at 4:00 PM, Robert         L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)>         wrote:

          	  Quote: 	
		                                          	  Quote: 	
		   The GPS feeds into the                 EFIS are not working properly so now I need a                 datastream monitor -                 this device seems like it might do the trick. 	
               

             

               Hmmm . . . I missed this point the first pass through

               your query. For a troubleshooting monitor, you may

               be better served with a lap-top configured with an

               RS-232 to USB adapter and a utility to read data

               streams and put them up on the screen in real time

               either as a scrolling presentation . . . or parse

               of some interesting words and display current values

               in a box on the screen.

             

               I used to do this kind of stuff all the time at

               Beech/RAC/HBC. I could get my laptop and data acquisition

               system going and installed before the legacy service

               organizations could get their work orders approved

               and funded. Damn it was nice to have a dedicated

               budget for such things!

             

               Did all my lap-top work in compiled basic.

             

             

             

                 Bob . . .                          

           

         

	
     [b]

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henry(at)pericynthion.org
Guest

Posted: Tue Aug 21, 2012 12:59 pm Post subject: Recording a NMEA GPS stream

The combination of these two should do nicely, no coding required (but

you can also use them to learn about microcontrollers if you want to):

https://www.sparkfun.com/products/10216

https://www.sparkfun.com/products/8780



Henry

On Tue, Aug 21, 2012 at 1:12 PM, Peter Pengilly <peter(at)sportingaero.com> wrote:

 	  Quote: 	
		   Thanks for all the pointers - I don't have a laptop at present so figured a

 small datalogger would be cheaper!



 Peter

 On 21/08/2012 05:44, Jeff B. wrote:



 If you're really interested in embedded programming and you want to avoid

 the laptop, the Arduinos probably will fit the bill.  However, if you just

 want to troubleshoot NMEA, then a laptop with serial port (or USB adapter)

 and software would be fastest.  You can probably tap off the GPS' TxD pin to

 your laptop's RxD pin.



 A Google search turns up a few programs, none of which I have experience

 with, but all look useful of some sort.



 http://www.visualgps.net/visualgps/

 http://homepage2.nifty.com/k8/gps/

 http://www.aviadesign.com/Monitor/

   -Jeff-



 On Mon, Aug 20, 2012 at 4:00 PM, Robert L. Nuckolls, III

 <nuckolls.bob(at)aeroelectric.com> wrote:

>

>  The GPS feeds into the EFIS are not working properly so now I need a

> datastream monitor - this device seems like it might do the trick.

>   Hmmm . . . I missed this point the first pass through

>   your query. For a troubleshooting monitor, you may

>   be better served with a lap-top configured with an

>   RS-232 to USB adapter and a utility to read data

>   streams and put them up on the screen in real time

>   either as a scrolling presentation . . . or parse

>   of some interesting words and display current values

>   in a box on the screen.

>

>   I used to do this kind of stuff all the time at

>   Beech/RAC/HBC. I could get my laptop and data acquisition

>   system going and installed before the legacy service

>   organizations could get their work orders approved

>   and funded. Damn it was nice to have a dedicated

>   budget for such things!

>

>   Did all my lap-top work in compiled basic.

>   Bob . . .

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Brantel

Joined: 23 Aug 2008
Posts: 53

Posted: Tue Aug 21, 2012 3:11 pm Post subject: Re: Recording a NMEA GPS stream

I made one of these a while back.  Works great!



http://www.vansairforce.com/community/showthread.php?t=84045

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peter(at)sportingaero.com
Guest

Posted: Wed Aug 22, 2012 11:28 am Post subject: Recording a NMEA GPS stream

Cool, thanks!



On 22/08/2012 00:11, Brantel wrote:

 	  Quote: 	
		   



 I made one of these a while back.  Works great!



 http://www.vansairforce.com/community/showthread.php?t=84045





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=381485#381485

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