TinyCircuits Forum
General Category => User Projects / Code Examples => Topic started by: growe19 on October 23, 2014, 03:16:54 PM
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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.
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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.
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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