TinyCircuits

Google Earth unable to read GPS Cat Tracker NMEA file

Google Earth unable to read GPS Cat Tracker NMEA file
« on: October 23, 2014, 03:16:54 PM »
I followed the GPS Cat Tracker tutorial and have a gps.txt file written to the microSD card. Lots of raw data inside. I correctly renamed the file so it was no longer a txt extention but .nmea

Google Earth is unable to read it. I get a "Loaded no data" message appear. I also tried converting it on gpsvisualizer.com without luck. "No valid GPS data detected!"

I was also hoping to introduce the 16 Edge LEDs shield. I used the Sketch from this tutorial: http://www.instructables.com/id/Tinyduino-LEGO-GPS-battery-powered-Logger-DIY/?ALLSTEPS

Unfortunately it seems like the GPS never gets a signal. All that happens is the lights flash around the edge which is the sequence for searching for satelites. 

I've attached the NMEA file if it helps someone with better knowledge.

Re: Google Earth unable to read GPS Cat Tracker NMEA file
« Reply #1 on: October 24, 2014, 01:55:38 PM »
UGGG! Google Earth is being dumb!

I tried to open you GPS file in Google Earth on my laptop but it pops up some error message but the message disapeers before I can see what it says !!!

I took a look at the file and it has data in it.  I'll bug Ken about it the next time I see him.

Re: Google Earth unable to read GPS Cat Tracker NMEA file
« Reply #2 on: November 11, 2014, 07:17:46 PM »
Your file has no location data. If you look at the text file, the $GPGGA line is the location sentence. The first item is the time of the fix (190413.838 for your first one, this is 19:03:13 UTC), the following comma separated elements should be the latitude, longitude, then other data. Yours are all blank - nothing between the commas. Your GPS must not have had a fix.

Check out : http://www.gpsinformation.org/dale/nmea.htm for what all the lines and data elements should represent.

Dr. Joe