Hello! I am working on customizing the Navigator board, and I have designed the board with a couple of changes - BMP390 instead of BMP380 and AK09918C as upgrade but I am not able to use the board in BlueOS. I am unable to get any data from the sensors on the vehicle Setup window. Any help in resol…

Here is the screenshot from the Web Interface. [Screenshot 2025-05-19 at 10.09.23 PM]

Hi @rickeverest - One does not simply swap those components out and expect everything to keep working! In order to get those sensors working you’ll need to fork ArduSub, and develop driver support in the codebase. @williangalvani may be able to provide additional details in terms of what board de…

Thanks Tony! I have been digging into the ArduSub files and saw that it detects BMP390 but doesn’t support it, so we switched out to BMP388 but that is still having some issues. Can you provide any direction on what files need to be updated for both the compass and pressure sensors to work?

Hi Rick, FYI, Ardurover 4.6.0 was just released and it says the navigator board supports the BMP390: [image] Rover-4.6.0 released! ArduRover Rover 4.6 …

Hi @rickeverest - Ardupilot should support this, but your setup doesn’t know the alternative chip is present! You need a new board definition - it can be the existing Navigator definition copied with your updates to this file. You’ll also need to update BlueOS - this file specifically . Just make…

Customizing Navigator Board

Blue Robotics Software

rickeverest May 23, 2025, 4:35pm 6

Thanks a ton!

Can you please advise if there is a reason AK09918C might be failing? I know the Navigator board has AK09915 but that is now obsolete.

BlueOS Compatible Flight Computer based on RPi Compute Module

Topic		Replies	Views
Navigator board compatibility with older version BlueROV2 Blue Robotics Products	3	165	May 23, 2024
BlueOS Arduplane 4.5.4 firmware no sensors detected (barometer not found) Sensors	44	487	October 27, 2024
Navigator Installed -- No Board Running (Help!) BlueROV2 navigator	2	81	December 9, 2025
Navigator barometer sensor reading incorrect, calibration fails Blue Robotics Products navigator	1	45	February 16, 2026
BlueOS Navigator Board Detection BlueOS navigator	5	1261	May 18, 2025

Community

BR Website

Software Docs

Autopilot Docs

BR and Beyond

Software

Customizing Navigator Board

Community

BR Website

Software Docs

Autopilot Docs

BR and Beyond

Software

Customizing Navigator Board

Related topics