Comments

• Dan April 20, 2012 at 12:53am

  Prop rotation was correct using the HobbyKing ESCs (it flew, but was never anything near stable).  The numbering is also correct.  Mistakes on those would explain the initial instability, but wouldn't explain why I can't calibrate the ESCs or get the props to spin at all now...
• Dan April 20, 2012 at 12:37am

  Desperately need ESC help.  I've been trying to get my quad flying for two weeks with no success, and I'm fairly certain the problem is an inability to calibrate the ESCs.  I've followed all instructions to the letter, tried both automatic and manual modes.  Initially I was using Hobby King 25A ESCs, and they seemed to calibrate, but the copter constantly lurched in one direction, even from a slow takeoff.  (two legs would lift off the ground first and it took constant stick adjustments to keep it from veering into trees).  Multiple recalibrations/leveling didn't help, and I realized that propellers were still not spinning up in unison.

  Tonight I swapped all the ESCs for the yellow ones that come with the 3DR kit.  When I calibrate them manually, I don't get the audible signals (two beeps) that should let me know they've calibrated, but they seem to work individually.  When I plug them into my purple APM2, I get nothing.

  I've confirmed in the mission planner that the throttle is on channel 3 and is not reversed.  I'm definitely in stabilize mode.  Any suggestions on what I'm missing?  I just want to get this thing up in the air!  Thanks for all suggestions.
• 3D Robotics

  Chris Anderson April 18, 2012 at 4:33pm

  Santini: follow the instructions. You only need one resistor for full-battery measurement.
• 3D Robotics

  Chris Anderson April 18, 2012 at 7:31am

  Ramesh: Yes, you can do it via the MP. The CLI or MP setup process is just for the flight modes that you're changing via your RC toggle switch. 
• Developer

  Randy April 18, 2012 at 5:56am

  @Bradley,

  >>Can I set Channel 6 variable to control a setting that would help out in the windy conditions and then tone it down when it is not so windy?

  To be honest, i don't know enough (I'm not sure anyone knows enough) about how the loiter behaves in different conditions to give good advice on what tuning values should be increased/decreased.

   

  P.S. I'm repeating your question because comments posted to this group are also emailed to people and they can't see the original questions because this group doesn't really act like a thread.  Sometimes, it's better to start a discussion.
• Developer

  Randy April 18, 2012 at 4:55am

  @Bradley,

       Re your question:

  >>"When you have channel 5 set on RTL should it return to launch and land? Or should it RTL and loiter?"

      the answer is that it will land after a while.  the amount of time it waits before landing is set in the "AUTO_LAND" parameter.  The value is in milliseconds so 20,000 = 20 seconds.

   

  @Andre Kotze,

      Re the quad swirling in a clockwise direction when you go into loiter..it could be because your declination is off so it's missing the target of the loiter.  I think if you're swirling clockwise you need to decrease your declination.  Try decreasing by 10 degrees to see if that helps.

      

  -Randy
• 

  Wessie April 10, 2012 at 12:03am

  @Andre - I used to put the Yaw D value to 6 before, that gave me a crisper rudder command. Try it, let me know if it has the desired effect.

  Wessie
• Mark Slater April 3, 2012 at 10:57am

  @Ian,  I had some trouble with Oct configuration. The correct connections are here 

  http://code.google.com/p/arducopter/wiki/AC2_Props_2
• Developer

  Adam Rivera April 3, 2012 at 6:59am

  Ian: See this link: http://code.google.com/p/arducopter/wiki/APM2_Motor_order It is already in the wiki. I am assuming you have an APM2.
• 3D Robotics

  Chris Anderson March 30, 2012 at 4:12pm

  Bradley: Are you using the 2.5.3 code? The Alt Hold issue was with 2.5 but should have been resolved with 2.5.3