If you are using V1, [http://www.adafruit.com/datasheets/SIM808_GPS_Application_Note_V1.00.pdf use this GPS command document for how to interact with the GPS subsystem] | If you are using V1, [http://www.adafruit.com/datasheets/SIM808_GPS_Application_Note_V1.00.pdf use this GPS command document for how to interact with the GPS subsystem] |