ArduRover User Group

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

Members: 412
Latest Activity: 7 minutes 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

Contributing to giving sight to AV's

Started by RoboBill. Last reply by RoboBill 7 minutes ago. 60 Replies

Hello everyone,I'm trying to design and build an "open source" radar system. The premise is that while we have the hacked Neato and the RoboPeak system, I've not found anything for outdoor use. So…Continue

Revo Drone

Started by Erik Harmon. Last reply by Thomas J Coyle III 20 hours ago. 1 Reply

Hello Folks,My children and I are in the early planning stages of our first drone project.  What we have is a second hand, dirty, Traxxas Revo 3.3.  What we would like to do with this is:Convert it…Continue

How to Install Dual Sonars on a Pixhawk

Started by Thomas J Coyle III. Last reply by Anders Wikstrom 21 hours ago. 23 Replies

Hi All,I just completed installing dual Maxbotix MB1240 sonars on one of my Pixhawk equipped rovers.Since the sonars were from an APM equipped rover they already had single pair shielded cables…Continue

Tags: install, Pixhawk, dual, sonar

No reverse, No neutral on throttle

Started by Jim phelps. Last reply by Jim phelps on Thursday. 8 Replies

When vehicle starts, it apparently thinks it is at half throttle.  There is no reverse.  There is no neutral at half throttle. I have to pull the throttle all the way back to stop the vehicle.  I am…Continue

Tags: reverse, no

Comment Wall


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

Comment by Thomas J Coyle III on August 25, 2014 at 4:23pm

Hi All,

It is official now!

Tridge has just announced the release of ArduRover2 v2.46 Link

Congratulations to Tridge and the Developer Team!



Comment by Thomas J Coyle III on August 10, 2014 at 3:54pm

Hi All,

I think that once Tridge is done with the AU Outback Challenge, we plan to release a stable ArduRover2 v2.46.

The new release will have the active braking and throttle slew rate adjustment functions.

Stay tuned:-)


TCIII ArduRover2 Developer

Comment by Thomas J Coyle III on August 5, 2014 at 5:40pm


We have talked about implementing optical flow for the Pixhawk equipped rovers and that could possibly be in the mix for next years Sparkfun AVC competition.


TCIII ArduRover2 Developer

Comment by FD on July 31, 2014 at 9:55pm

Hi all, has anybody ever thought about using optical flow for rovers in GPS-denied environment (such as indoors)?

This thread reminded my again of that possibility:

Any thoughts or even experiences with that?



Comment by Thomas J Coyle III on June 23, 2014 at 3:26pm


Some excellent observations and thoughts on future low cost (relatively speaking), improved heading accuracy GPSs.


TCIII ArduRover2 Developer 

Comment by Bot Thoughts on June 23, 2014 at 2:28pm

For what it's worth -- @Tom, @RoboBill -- our team, SHARC, was also using a Hemisphere industrial grade GPS on our robot "Troubled Child," possibly the same model (an A100) as 0x27 was the prior two years.

I think we can safely say that our GPS worked quite well in Doping class this year. :) The specs quote 60cm accuracy 95% of the time. I fully believe it.

The consistency and accuracy were truly astonishing to me, who is used to making do with Venus, uBlox, etc. But then, Hemispheres are used to run farm equipment, ships, etc. So they have to work well.

I would hesitate to blame the Hemisphere for 0x27 not doing as well last year. Too many other things could've gone wrong. The list of potential failures for AVC robots is really rather long. :)

But as Tom said, they probably aren't cost effective for most. And I think it's clear from Data Bus and APM:Rover and others that GPS combined with other sensors can deliver quite decent performance.

I'd love to see the community push the envelope with GPS. Definitely keeping an eye on NavSpark, etc.

Comment by Thomas J Coyle III on June 23, 2014 at 10:44am


Nice setup. Clean installation.

Unfortunately Sparkfun does not presently allow an RTK transmitter during the AVC competition.

Also, using a high end GPS may not necessarily be that cost effective as a team using a $1800 commercial GPS did not do that well in the Doping class last year (2013) compared to their winning performance during the 2012 AVC which was held at the Sparkfun corporate offices.

I was able to approach an HDOP of 1.1 at the AVC competition in the afternoon using just an ordinary uBlox LEA-6 and I am now experimenting with a uBlox M8Q which should be able to get the HDOP below 1.0 without any trouble.

At the Boulder, CO AVC site I was able to attain the same number of satellites and HDOPs that I have observed here in southern Florida which helps me to create similar expected rover navigation performance on my simulated AVC course.

There have been posts recently on the Google drones discussion Group indicating that the NavSpark is capable of acquiring up to 21 satellites and it is very inexpensive compared to the Piksi navigation system and therefore more available to a larger number of users.

However that does not mean that we cannot push forward in developing GPS library code for the Piksi and other higher performance GPSs.


TCIII ArduRover2 Developer 

Comment by RoboBill on June 23, 2014 at 10:01am

I've recently installed the new Piksi navigation system with my Pixhawk rover. Since the Piksi is new (with code in progress) I was wondering where all us RoverDudes could go to share Piksi/Pixhawk & NavSpark experiences. Since this is cross platform, do we form a new group or start discussions within each? 



Comment by Kyle Campbell on June 18, 2014 at 3:31pm

I have no telemetry setup, so no battery monitoring. 

By just visual observation, the car varies by maybe 1.5m at most when running on the same waypoints?

My plan with the single sonar is to just have the waypoints slightly favor the inside line and have the car turn right (towards the outside) when an obstacle is detected. With a car as small as mine, it feels like it has plenty of room, so hopefully directionality won't matter too much.

Comment by Thomas J Coyle III on June 18, 2014 at 3:23pm


If you are running telemetry, you can see it in the MP or the APM Planner.

You can also see it in the data flash logs that you can download after you have run a mission.

Are you monitoring your battery voltage in your GCS?

The number of satellites sounds good and just like that location last year.

I am able to get 12 -13 satellites here in southern FL just about all the time.

Since you are using only one sonar, how do you decide which way to turn once an obstacle is detected?


TCIII ArduRover2 Developer



Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Drone Delivery Challenge, is here

© 2015   Created by Chris Anderson.

Badges  |  Report an Issue  |  Terms of Service