Replies to This Discussion

Permalink Reply by Steve Smetters on August 17, 2011 at 7:15pm

All of a sudden my sonar is working very well with the 2.039 version. Motors are no longer hunting and the altitude hold is smooth and rock solid.

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Permalink Reply by Vincent Mees on August 18, 2011 at 1:24am

Did you do something special?

Where did you get the v39? MP, trunk?

Which version of the MP are you using?

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Permalink Reply by Steve Smetters on August 18, 2011 at 5:55am

Uploaded using MP (version 1.0.54)... I did nothing special...

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Permalink Reply by graham newton on August 18, 2011 at 3:40am

Hi I am New to the ARDU :)

Got up and running with the latest firmware. BUT... when I plug the GPS in I get a yaw glitch the spins the copter around 180 degree while in forward flight... Is this similar to the yaw issue being discussed?

 

I am still waiting to get a MAG, could this cause this issue?

 

THanks

 

Graham

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Permalink Reply by Rui Manuel Cravo Marques on August 18, 2011 at 4:34am

Hi. Have you confirmed that the GPS is connected to the right plug ? You have identical plugs both in Ardupilot (red board) and IMU (blue board). The GPS is connected to the RED board. I don't have a MAG connected to mine at the moment and it doesn't do that. What mode are you in ? Try "simple" mode instead of "stabilize".

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DeveloperPermalink Reply by Michael Oborne on August 18, 2011 at 4:48am

if you have a gps you NEED a mag. the wiki says this.

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Permalink Reply by Rui Manuel Cravo Marques on August 18, 2011 at 5:02am

Hi Michael. That obligation was implemented recentlly right ? When I started with the quad, it was not mandatory, only to get correct orientation when hovering. Due to a lot of re soldering I accidentally ruined the mag's soldering pads on my IMU board, tryied to connect the MAG to the plug with a cable (mag is ok, I've tested it with the example routine), but I believe the plug and the on board connection are in serial, so once the pads ruined, no signal to the plug. I'm waiting to buy another IMU and will use this one who knows, for a plane.

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DeveloperPermalink Reply by Michael Oborne on August 18, 2011 at 5:04am

in stabalise, you can run a gps, without a mag, in most other modes you require a mag. (actualy i mgiht be wrongh about even this)

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Permalink Reply by mc_don on August 18, 2011 at 5:12am

hi graham... i have same issue...

MAG must be connect when you using GPS.

or disconect your GPS while no MAG.

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Permalink Reply by Jaan Kronberg on August 21, 2011 at 10:58pm

hey graham,

i have similar problem, and i have seen it reported on some russian forums as well.. it does not seem to be version-related, though..

would be interesting to hear some comments

thx,

jk

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3D RoboticsPermalink Reply by Chris Anderson on August 21, 2011 at 11:02pm

Yes, the manual repeats this several times: You MUST use a mag if you're using GPS.

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Permalink Reply by Jaan Kronberg on August 21, 2011 at 11:05pm

in this context - does "use" mean "if it is connected", or "use" means "flying in a mode that requires gps"?

 

sorry for confusion and thank you in advance,

jk

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