Comments

• 

  Michael Monti September 14, 2014 at 1:47pm

  Thanks for the reply Thomas.

  I got it figured out.  I'm using a custom arduino based mixer. I had the throttle reversed. I adjusted my mixer and things look good now.

  Cheers..  \o/
• Admin

  Thomas J Coyle III September 14, 2014 at 12:38pm

  @Michael

  What value do you have your CRUISE_THROTTLE set to?

  What value do you have your CRUISE_SPEED set to?

  What value do you have your WAYPOINT_RADIUS set to?

  How far is your first waypoint from the starting (home) point?

  Regards,

  TCIII AVD
• 

  Michael Monti September 14, 2014 at 10:40am

  This is my first time setting up an APM,  

   I have everything working in "manual" mode good.

  Throttle and steering respond to my radio and from the ground station joystick.

  But when I go into "auto" mode, the steering is responding but I get no throttle, no forward speed.

  I setup the configuration to what it says in the ArduRover setup guide. at   http://rover.ardupilot.com/wiki/configuration-2/

  But it looks like there is some information missing from that page, It stops in mid word.

  so I went on to here;

  http://rover.ardupilot.com/wiki/tuning-steering-and-navigation-for-...

  and set the parameters as described.

  No Joy.....   Steering movement but no speed. Can someone tell me what I am missing please?

  Thank you.....
• Admin

  Thomas J Coyle III 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!

  Regards,

  TCIII AVD
• Admin

  Thomas J Coyle III 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:-)

  Regards,

  TCIII ArduRover2 Developer
• Admin

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

  @FD,

  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.

  Regards,

  TCIII ArduRover2 Developer
• 

  FD 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: http://diydrones.com/profiles/blogs/adding-optical-flow-to-the-mix

  Any thoughts or even experiences with that?

  Regards,

  FD
• Admin

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

  @Michael,

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

  Regards,

  TCIII ArduRover2 Developer 
• 

  Bot Thoughts 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.
• Admin

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

  @RoboBill,

  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.

  Regards,

  TCIII ArduRover2 Developer