How can I get the location information from the HL7800? I do not see a command in the documentation.
What documentation are you looking at?
The HL78XX AT command set has a bunch of GPS related commands.
AT+GNSSLOC? +GNSSLOC: Latitude: 49 Deg 10 Min 23.88 Sec N Longitude: 123 Deg 4 Min 8.64 Sec W GpsTime: 2018 12 11 1 00:02:23 FixType: 3D HEPE: 129.711 m Altitude: -29 m AltUnc: 104.4 m Direction: 0.0 deg HorSpeed: 0.0 m/s VerSpeed: 0.0 m/s OK
I was using the Version 3.0 (July 31st 2018) document. I was able to find a newer one Version 8.1 (April 23rd 2019) and you are right it has some GPS related commands.
What firmware version do I need to be running for the GPS to work?
I would assume that if the documentation for a firmware release lists commands for GPS then that firmware release has GPS. I would be surprised if any hardware that was GPS capable had a firmware release that didn’t support GPS.
The easiest way to see if your version supports GPS is to test the GPS commands.