ArduRover User Group

Dedicated to the exchange of useful information between members using the Arduino or other families of processors for autonomous rovers.

Members: 310
Latest Activity: 8 hours ago

Before Posting an Issue

Hi All,

Before posting an issue or a problem in the ArduRover 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

Is User Hook available in APMRover?

Started by Adam Radel Apr 9. 0 Replies

Hey all,I know you can have custom "USERHOOK_VARIABLES" as mentioned on  …Continue

First Steps - Help a noob

Started by Gabriel Ulysses. Last reply by Gabriel Ulysses Apr 7. 7 Replies

Hello, I've been reading about ArduPilot for a long time, but I never had the opportunity to buy one, today finally I could buy an APM 2.6. My first project is to build a simple rover using this…Continue

Please integrate compassmot

Started by Nikola Rabchevsky. Last reply by nic garton Apr 5. 2 Replies

I was wondering why compassmot hasn't been integrated into the rover code.  I read the comment that says it's not needed but I've been testing a rover with some BIG motors drawing lots of amps and I…Continue

Support online

Started by Ron J.. Last reply by Ron J. Apr 3. 2 Replies

Can anyone tell me if there are any other sites/forums like this one where I might find some help?Continue

Comment Wall


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

Comment by Bot Thoughts on June 9, 2013 at 9:06pm

Tom, Tridge, and everyone, congratulations!!!  That was an awesome showing. And, great to finally meet you in person, Tom! --Michael

Comment by Thomas J Coyle III on June 9, 2013 at 6:27pm


I am presently near St. Louis, Mo and will be home by Tue afternoon.

I want to thank everyone who assisted in this victory for the ArduRover team at the Sparkfun AVC. I do not believe that anyone person alone could have pulled off what our team was able to accomplish at the AVC.

Next year I plan to fly as this three day drive is murder without someone to ride shotgun.

I hope to enter an improved Slash rover and a Traxxas 1/16 Rally which will use a PX4 FMU and I/O.


Tom C

3D Robotics
Comment by Chris Anderson on June 9, 2013 at 3:45pm

It was a great day for Team ArduRover and Tom was absolutely beaming. He's got a long drive back to Florida to savor the victory, but the lesson here was that hard work pays off. Huge thanks to Tridge, Tom and everyone else for bringing this code up to contest-winning quality over the past few months. Next year, we can add vision, Lidar, DGPS and more and become unbeatable. 

Comment by Andrew Tridgell on June 9, 2013 at 3:40pm

Huge congratulations to Tom Coyle for winning the Sparkfun mid-size Rover category at Sparkfun AVC on the weekend! Tom has put a massive amount of effort into testing the APM Rover code, and it really paid off for him. I haven't yet found a video of his run, but from what I've heard his rover managed to get through the barrells, through the hoop and over the ramp to produce a winning score.

Hopefully when Tom is back home (it's a long drive!) he will write up the full story.

Cheers, Tridge

Comment by Mike Wilson on June 7, 2013 at 6:37am

Thanks for the info. I'll upload the latest firmware and give it a try.


Comment by Andrew Tridgell on June 7, 2013 at 12:53am


I forgot to mention that there is a simple workaround for the bug. Just change the value to something else first - for example, change it to 0.1, write the parameter change, then change it to 0.0. It will then work.

Cheers, Tridge

Comment by Andrew Tridgell on June 7, 2013 at 12:26am


It's a bug which I fixed a few days ago. I plan on releasing a new rover version soon with the fix, but meanwhile you could load the 'latest' version from and that has the fix.

Cheers, Tridge

Comment by Mike Wilson on June 6, 2013 at 10:31pm

@ Tom or John,

I'm trying to set the Steer "D" values to zero but for some reason, the APM is not accepting the settings and they go back to 0.2 if I disconnect and reconnect to the APM.  If I write the parameters and then do an immediate read, the values are correct but if I do a disconnect and reconnect, the values are back to their default.

Am I missing something or is this a bug?



Comment by John Hestness on May 30, 2013 at 8:34pm


Unfortunately I did not save my parameters, but I believe they are the default parameters except the heading2steer and servo2steer, the "D" I changed to zero.  I have some other experience with tuning and it seems that the D parameter is not often needed.  I watched your video, your rover is running great. I look forward to hearing and seeing more.


I think you are right, we need to build drones/rovers/robots that do real work. This is my real motivation behind the hobby.

Comment by Thomas J Coyle III on May 30, 2013 at 12:36pm

Hi All,

Today I verified John Hestness' observation that setting the D (derivative) of the two steering PID control loops to zero did indeed stop the jittery rover steering.




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