For those of you with a GStar R-15E module, be advised that there are 2 jumpers to regulate the input volgage : 3.3V and 5V.
Mine came in with 5V shorted and 3.3V open but the Freematics board gives me 3.3V between GCC and Ground.
I'm going to switch the jumper position to confirm but I think it may explain why I wasnt able to log GPS data thus far.
Watch the GPS Module Voltage !
Re: Watch the GPS Module Voltage !
That shouldn't be an issue. Can you manage to log NMEA data?