slavino commented 4 years ago

Standard GATT

and maybe freestyle other environment data if sensor present or received from mesh (air pressure, ...)

http://arduiniana.org/libraries/tinygpsplus/

geeksville commented 4 years ago

good idea and fairly easy to do.

qurm commented 4 years ago

Hi,

I am interested in developing this enhancement. I have done some hobby BLE work on NRF devices a year or so back. I have been looking around for reference implementations, but there's not much out there, and very little on NimBLE. I have the LNS spec from here, and can probably work from that, with NimBLE examples for other services: https://www.bluetooth.com/specifications/gatt/

Also there seem to be some BLE apps that provide GPS data over BT, but it is not clear that they use the GATT LNS service. I suspect that they stream NMEA data some other way (UART?). Does anyone know more about this? like https://play.google.com/store/apps/details?id=com.Saenko.GpsOverBt
@slavino -do you have an application that you would use this with?

meshtastic / firmware

Implement standard GPS GATT service, so any app can use the devices as a 'GPS' #235

Standard GATT

DateTime from GPS

Time source - GPS

Longitude

Latitude

Altitude

and maybe freestyle other environment data if sensor present or received from mesh (air pressure, ...)