ArduBoat User Group

Dedicated to developing hardware and firmware for autonomous aquatic vehicles.

Members: 240
Latest Activity: Feb 9

Before Posting an Issue

Hi All,

Before posting an issue or a problem in the ArduBoat Discussion Forum, please check the wiki table of contents, review the firmware release notes in the subforum, and search that subforum for existing answers to your question. Help avoid duplicate threads by finding other members with the same issue and their solution.

When formulating your post, use a descriptive title such as "rover will not navigate to waypoints in the Auto mode" (not "HELP!" or "Problem").

Please include the following information to help diagnose your query:

  • Describe the problem you are having. What is the expected verses the observed behavior?
  • Provide hardware information such as the brand and version of your autopilot, GPS, radio, and compass, as well as any other pertinent details about your rover setup.
  • What version of the APM: ArdurRover2 firmware version are you running?
  • For navigation issues, provide your tlog and/or dataflash log. Click here for instructions on retrieving a dataflash log.


Discussion Forum

Bait boat- new project

Started by cristi. Last reply by David Boulanger Feb 7. 5 Replies

Hi allMy name is Cristian and I m from Roumania.First of all excuse my poor english and congratulations for this technical forum.I started 2 weeks ago a new project with a autopilot Pixhawk/Px4…Continue

Airboat Differential Motors Unsure about Arduboat set up. Need guidance/advice

Started by Nicholas Lee. Last reply by Soton Hydro Team Jan 24. 2 Replies

This is my first Ardupilot / Autonomous Project.I'm doing a project that requires this boat to go to a specific way point for water quality testing/sampling.This Airboat configuration uses 2 air…Continue

Skid Steer Using Pitch & Throttle

Started by Darren Smith. Last reply by Nicholas Lee Jan 21. 1 Reply

Hi,I have SKID_STEER_IN set to "1" for my dual motor boat which responds to the throttle and roll (Channel 1 & 3) inputs from my transmitter.I would prefer that it responds to throttle and pitch…Continue

APM 3.1 + Differential trust

Started by alexus. Last reply by Nicholas Lee Jan 21. 2 Replies

I am new in boat building. I am building 2 motor boat and planning to use it with APM 3.1 and staring will be with differential trust. Can any one give to me any informations how to make my boat to…Continue

Comment Wall


You need to be a member of ArduBoat User Group to add comments!

Comment by David Boulanger on January 30, 2016 at 4:32pm

Now the Arduboat tab on the home page has been replaced by PX4 Software. 

Things are definitely changing in the DIYD community.


David R. Boulanger

Comment by Richard Sterling on January 3, 2016 at 8:49am

@TCIII, thank you and like wise.

@David: thanks again, you are right, I was not looking at it correctly. It will take some getting used to.

Thank again,



Comment by Thomas J Coyle III on December 31, 2015 at 5:28pm

I would like to wish all of the ArduBoat members a happy and productive New Years!



Comment by David Boulanger on December 30, 2015 at 7:55pm


Are you sure you are looking at the horizon properly.  I know from flying aircraft that at first the horizon looks to be the opposite than it really is. 


David R. Boulanger

Comment by Richard Sterling on December 30, 2015 at 1:12pm

Has anyone had this before: if I tilt my boat to starboard (right) the HUD horizon tilts to port (left) and vice versa? If if dip or raise the bow the horizon acts normally. Compass is working normally. The boat in the mission planner display is correct.

I have checked the Parameters but can't see or more than likely don't know what to look for.

The orientation mounting is default.  

I am using a APM 2.6 with a UBlox NEO-7M GPS with Compass, connection via 3dr radio.

I checked it with a usb connection and the same. 

@David: I bought the new GPS. When I was ordering it I read your post about the rice and thought "What do I have to lose?". 

The day the new UBlox NEO-7M GPS with Compass arrived I first tested the new GPS and the pulled the old LEA-6H out of the rice and she fired right up, took a couple of minutes longer than the new NEO-7M but shes back from the dead.

Thank you David, I would have never tried if you hadn't mentioned it.



Comment by Kevin Klemens on December 25, 2015 at 5:32pm


Love your projects! I can't make it out from the photo, but what is that make and model of the catamaran boat? It looks perfect for putting all sorts of gear in there!


Comment by David Boulanger on December 24, 2015 at 5:08am


Just zoomed in on the shark picture.  6" PVC !!  That thing is huge. I figure about 4' x 5' ?


David R. Boulanger

Comment by Richard Sterling on December 14, 2015 at 1:06pm

@TCIII, I will try the alcohol.

@David, it was salt water . . . 

I've wiped it down and put it back in the rice.

My new GPS will take wont be here until Wed so I'll leave it until then and see what happens.

If I do recover it I'll design and print a water tight case for it.

Odds are not with us I feel ;-)

Thanks again guys,


Comment by Richard Sterling on December 14, 2015 at 12:58pm

@TCIII, I decided to go for the NEO-7M simply for the price and the fact that it was sealed at the GPS end as apposed to the LEA-6.

Price also played a role as my  boat is very wet (due to my 2x 6.6mA) and the GPS is bonded to the fore deck.

The boat performs well on plane but drops off plane sharply. Great at speed.  

With that and my driving I expect this won't be my last purchase.

Still trying Davids "rice trick" and see if we can salvage the old girl.

Thanks again,


Comment by Thomas J Coyle III on December 14, 2015 at 12:56pm


Try cleaning the pwb with 91% isopropyl alcohol (available at Walmart) to ensure that any contamination of the pwb due to water ingestion has been removed.


Tom C AVD 


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