Comments

• 

  F. C. Bearsch September 26, 2014 at 5:43pm

  very excited that we have a rover project that just came live, is the skid steering issue resolved? 
• 

  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.
• 

  RoboBill 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? 

  Thanks

  RoboBill

  
• T3

  Thorsten June 4, 2014 at 7:33am

  Thanks Thomas!

  I'll give it a try. You find a longer reply here.

  Best regards,

  Thorsten
• T3

  Thorsten June 4, 2014 at 5:51am

  Hi Linus,

  thanks a lot! Great!

  I'll give it a try and report!

  Best regards,

  Thorsten
• Developer

  Linus June 4, 2014 at 4:10am

  Hi Thomas,

  it depends on what you have MIS_RESTART set to.

  0 = Resume Mission and 1 = Restart Mission.

  So if you want to just pause a mission set MIS_RESTART to 0 and your rover should resume your missions.

  
  Regards,

  Linus
• T3

  Thorsten June 4, 2014 at 1:31am

  Hi Thomas,

  thanks for the link! 

  What is not clear to me is if the Start/Stop function can be used to pause+continue Auto missions or if it can only be used to (re-)start a mission from the beginning (a function to resume a mission from last active command seems to be available in AC3.2-rc1 only).

  Any kind of help is highly appreciated!

  TIA,

  Thorsten
• T3

  Thorsten June 2, 2014 at 11:24pm

  Hi Thomas,

  I am new to rovers and just starting to put pieces together.

  I am looking for a way (if possible without mavlink) to stop a rover at some point while in Auto mission and to proceed the mission after some external input. Hence, the Start/Stop auto_trigger function sounds interesting. Can you provide some details about it?

  My idea is to use something like CAM_TRIGG_DIST (which can easily be set in a CGS). Then after it is triggered and the signal is send to an embedded computer (RasPi, BBB, etc.) a Stop signal is send back to stop Auto Mode and, after some processing is finished, a Start signal is send to resume the Auto mission.

  Is something like this possible. I already posted here and here but no replies so far. Then I saw your post about the ArduRover 2.46 beta :-)

  TIA and best regards,

  Thorsten
• 

  JesseJay May 23, 2014 at 2:21pm

  Thomas,

     Blame the rouge Google servers.  It some how got flagged as spam.  I'll buy you a beer after the AVC.  I wish all of the APM:Rover competitors good luck, and I'll let my rover and do the talking till then. :)

  JesseJay (DIYRovers moderator) 
• chrisa May 8, 2014 at 2:37pm

  Hey, im new but I was wondering if this helps:

  When turning, why not take the speed into account to execute the turn a little early so that it doesn't overshoot. Instead of slowing down or with a combination of slowing down before the turn and then still having the gain low, just start the turn earlier ?  It can start early and then increase turn radius until it starts to flip or at a certain set G limit. Anybody a race driver? maybe

  Anyway thanks and good luck