Setting GNSS Device Path to GPSd?

Milosh · October 31, 2024, 4:01pm

Wanting to connect an external Ublox GPS to my gateway.

I have GPSd installed and configured and am getting valid GPS readings when connecting xGPS.

The 4.4.3 Concentratord release announcement says that this works " If GPSd has been configured (e.g. gnss_dev_path="gpsd://localhost:2947")"

But where do you actually set this line? Tried setting it in the overall Concentratord UCI to no avail. Do you have to set the global model flag in a particular way?

Thank You

Jason_Reiss · November 2, 2024, 2:51am

It is under [gateway] in the config template.

github.com

chirpstack/chirpstack-concentratord/blob/cb0f00cf335aff1f3c5731048298827da868bc0e/chirpstack-concentratord-sx1302/src/cmd/configfile.rs#L95


      
          # GNSS fix, use the system-time for setting the 'time' field on RX.
          time_fallback_enabled={{ gateway.time_fallback_enabled }}
          
          # Device and pin configuration.
          #
          # Only set this configuration if you need to override the default
          # configuration provided by the model configuration and you know
          # the device and pin mapping. In any other case, leave this commented
          # out.
          # gnss_dev_path="/dev/ttyAMA0"
          # gnss_dev_path="gpsd://localhost:2947"
          # com_dev_path="/dev/spidev0.0"
          # i2c_dev_path="/dev/i2c-1"
          # sx1302_reset_chip="/dev/gpiochip0"
          # sx1302_reset_pin=17
          # sx1302_power_en_chip="/dev/gpiochip0"
          # sx1302_power_en_pin=18
          # sx1261_reset_chip="/dev/gpiochip0"
          # sx1261_reset_pin=19

brocaar · November 5, 2024, 3:59pm

Please note that this might not 100% work as expected as you also need to wire the PPS signal from the GNSS module to the SX1301/2/3 module.

Milosh · November 5, 2024, 7:06pm

Is this something you can set through UCI? That’s not a directory I have been able to reach.

This is how I have it set on my machine and it does not appear to be working.