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Gumstix: GPS Stix Active Antenna Modification

Step 8Test it out!

Screw on your antenna and fire up the gumstix! Do a cat /dev/ttyS2 to view the raw GPS data stream. How do you knwo if it worked? do a cat /dev/ttyS2 | grep GPGGA to just see the GPGGA sentences (They contain time, latitude, longitude, ebaring and some other stuff). If the GPS isn't seeing any satallites you will see something like:

$GPGGA0,00,99.99*48

Don't dispair yet, make sure that the antenna has an unobstructed view of the sky, this is important! Let it stand for a few minutes. If nothing changes then go back and check for short circuts or broken connections. If it worked you should start seeing stuff like this:

$GPGGA,141812.00,4221.7816,N,07105.9727,W,1,03,2.45,00033,M,-033,M*59

HUZZAH you have a lock and your location is 4221.7816 North longitude by 07105.9727 West latitude!
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1 comment
Jun 21, 2008. 12:08 AMdishanker says:
Useful piece of info. Thanks. Any suggestions on where other software usage resources with the gumstix hardware are found. gumstix.net and its wiki is not that interesting at this moment :-).

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