GPS Topics

The GPS topic is managed by the navsat service and handles publishing the GPS location of the device. The service reads the position from the gpsd daemon which interfaces with the GNSS receiver, the receiver also disciplines the system clock through chrony.

The GPS topic is published under the gps topic, relative to the device hostname namespace. The topic name and the gpsd address are configurable in /etc/default/navsat.

gps

The gps topic publishes information about the device's position and altitude using the NavSatFix schema.

Usage	Link
Web UI	GPS Page
Foxglove	Map Example
SDK	GPS Example