Gpy with PyTrack can't get gps working

[Patrick Joy]

Hi all,

I got a GPy + pytack this week and I'm having trouble getting the GPS library in the example zip to return coordinates. It always returns (none. none). I have read through the other topics on the forum but they mostly seem to be related to signal strength issues.

The strange part is that when I do a location update in pybytes it works and shows my location correctly although maybe this is not using the GPS module?

So things I have tried:

• Updated gpy and pytrack firmware
• Left unit outside in clear view of the sky for 12 hours
• Tested with and without external antenna
• Check the dump_nema method and messages are being displayed/processed
• Tested some other versions of the gps library that have been forked/modified on github

Any tips would be appreciated as I'm stumped!

Thanks

[Patrick Joy]

Some further info on this.

I have dumped the NMEA messages from the GPS to a file and I can see that the pytrack isn't picking up any satellites.

I have tried with antenna jumper on/off, external and internal antenna, same result.

Could the shield be defective?

$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,004345.864,,,,,0,0,,,M,,M,,*44
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,00,0*65
$GLGSV,1,1,00,1*78
$GPGLL,,,,,004345.864,V,N*76$GPRMC,004346.864,V,,,,,0.00,0.00,060180,,,N,V*37
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03,M,,*47
$GPGSV,1,1,00,0*65,,,,,,,,2*00
$GLGSV,1,1,00,1*78
$GPGLL,,,,,004346.864,V,N*75