This tutorial demonstrates how to flash Zubax GNSS 2 using Dr. Watson on a bunker laptop.

Required parts

The following parts will be needed:

  • 1 x Zubax Babel
  • 1 x Dronecode Probe v2.3
  • 1 x UAVCAN Micro patch cable
  • 1 x DCD-M Cable
  • 1 x UAVCAN/CAN Micro termination plug
  • 3 X Micro USB cable Type B


Connect all hardware to bunker laptop.

  • Connect DroneCode Probe to the debug connector.
  • Connect CAN to the first CAN1 connector on the device; terminate the other CAN1 connector.
  • Connect USB to the device.


Use dmesg command to find out the port number of Zubax Babel (alternatively, use udev symlinks like /dev/serial/by-id/*Babel*).

From the Dr Watson root directory ( /zubax_gnss/tools/drwatson) execute.

sudo ./ /dev/ttyACM0

Note: Passed argument should be the serial port number of the attached Zubax Babel

After that follow the on-screen instructions to complete the flashing process.

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