Dedicated to developing hardware and firmware for autonomous aquatic vehicles.

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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.


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  • Has anyone set one up on a full size boat? Thinking of retrofitting a 17' whaler

  • Admin

    This User Group is for submersibles as well as surface vessels.

    I have a SRV-II R/C submarine and I plan to build an ROV when the thrusters become available.


    TCIII ArduBoat Developer

  • Admin

    Welcome aboard to our newest members.

    Please feel free to start project or other relevant hardware or software discussions, like I have done, in the User Group Discussion Forum.


    TCIII ArduBoat Developer 

  • Admin

    Hi Carl,

    Welcome aboard.

    You might want to transfer your blog to our Discussion Forum as you continue on your project.


    TCIII ArduBoat Developer

  • Great :) 

    I will update my blog with the latest udates soon. I just have a few issues wich TCIII have stared helping me with on ardupilot forum. 


  • Developer

    Hi guys,

    i would vote for using the boat group for all vehicles in water for now.



  • Admin


    Welcome aboard, nice to have your excellent project in our User Group.

    I would greatly appreciate it if you could make your Comment Wall post a project in the ArduBoat Discussion Forum above. That way it will not disappear off of the Comment Wall as the Comment Wall moves downward and will be available for members to view and discuss your project.


    TCIII ArduBoat Developer

  • Hello Tom and all,

    This group is an excellent idea! I look forward to being part of it. As part of our thruster development at BlueRobotics, we've been building a few APM-powered vehicles.

    The first is a solar powered surfboard. It has two thrusters for skid steering, 120W solar panel, APM, and satellite radio. Our end goal is to send it from Los Angeles to Hawaii. We've done a few autonomous tests with great success. Check it out here:


    We also built an ROV. It has six thrusters, giving it six-degree-of-freedom control so that you can position it however you want. The APM is awesome for this because it has the IMU and outputs for lots of motors.

    3689609976?profile=originalThe APM is an excellent platform for marine robotics. I'm excited to see what comes from members of this site.


    - Rusty

  • Admin

    Hi Linus,

    Welcome "aboard" so to speak:-) Nice to have a variety of surface craft projects for members to view, learn from, and contribute to.


    Should we also include submersibles (ROV/Submarines) in ArduBoat?


    TCIII ArduBoat Developer

  • Developer

    Hi Guys,

    nice that we have a Group for Boats as well now :)

    Thanks Tom for creating this.

    My plan is to get started with a Swamp Dawg (AirBoat) from HK that i bought a while back.

    It is more or less a boat/plane configuration with pusher prop in the back and rudder to steer / direct the air flow.

    I am waiting for a APC prop and collar to replace the original one that is not very in balance and ofcourse some time to get it tuned.

    Cant wait to see the first autonomous boat mission here :)



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New to boats looking for a hull suggestion

Hello allI have played around with fixed-wing drones before but am new to boats. I am looking to build a simple boat for the purpose of inspecting a heavily timbered section of river that it is hard to get a manned boat into and am looking for some suggestions on where to start. I don't need a sounder or overly accurate GPS (but both would be good to have). I would really like a high-resolution camera in a dome housing or similar that I could control and take photos with. I would also like a…

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Taking the boat round Manoel island.

Hey everyone I'm new here and my thing is USVs. Looking forward to sharing some more cool stuff in the future with you guys and I even sell this thing, And I even just sell the outboard system on its own so check it out. Shot 2019-09-14 at 2.30.40 PM.png

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Rudder control for kontiki

Hi all,I want to install a rudder on to my kontiki, which is like a submarine which floats on the surface and takes a fishing line out to sea.I am thinking of using an apm 2.8 with gps (because thats what i have) to drive a 20kg servo. The gps should point at a point about 3km out from the beach and the kontiki should follow that course until the timer turns off.I would be grateful for any advise how to go about this.

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3 Replies

How to connect 2 Brushless Motors and 1 rudder

Hi, I'm new to Pixhawk. I'm making a boat. I do have 2 brushless motor with ESC and 1 servo which is connected to the rudder. How can I connect them to the Pixhawk 2.4.8. What changes should I bring in the parameters? From readings, I come to know that servo should be connected to RC1 and motor to RC3. But what should I do when I have 2 motors, which are kept in both the ends. Thank you

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