GNSS sensors

Reflex supports GNSS modules speaking UBX protocol over UART/USB, specifically the u-blox NEO-M8P and ZED-F9P modules. There is a dedicated UART port for GNSS on the Reflex with an extra pin for a pulse per second (PPS) signal as mentioned in Product Overview.

GNSS Configuration

In order to configure the Rover GNSS module, you must specify which port it is connected to which can be done by navigating to the relevant page as seen below.

Web Interface: Settings > Sensors > GNSS

Note: Make sure to reboot the Reflex after the sensor is configured. This allows the new settings to take effect for further use.

Once connected, the Reflex automatically configures the Rover GNSS module to send NAV-PVT and NAV-RELPOSNED messages at a specific update rate.

If you are using an RTK setup, the base GNSS module has to be configured using external software such as u-blox u-center. The procedure for it can be found in GNSS Configuration page.

GNSS Monitoring

GNSS status can be viewed in the dashboard as follows:

Web Interface: Dashboard > Sensor Status > GNSS

Raw GNSS data can be viewed in the live data viewer as follows:

Web Interface: Advanced > Raw Data > Inspect Raw Data > sensors/gnss