Replies to This Discussion

Permalink Reply by Daniel Portillo on July 24, 2012 at 1:05am

I forgot said that my board es APM1 2560 with oil pan and compass, more photos about the test:

All items connected.

My Rx and APM1 conector.

The rx connected to APM1

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Permalink Reply by Daniel Portillo on July 24, 2012 at 3:56am

I did more tests and I could see that when I push softly the rudder stick, the  aileron and rudder channel goes crazy.

Anybody can said me something?

Here a grafic:

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Permalink Reply by R. D. Starwalt on July 24, 2012 at 5:03am

Hello.

Is this a new APM? If not, has flown before (or crashed)?

Have you monitored the voltage from the ESC/BEC while this occurs?

Can you monitor the control sticks (like Spektrum)?

With rudder input affecting aileron also, it sounds like your system is coupling them both, mixing... like a flying wing. Perhaps there is a mix command on your transmitter set?

What program/instrument are you using to make the displays provided?

Regards,

-=Doug

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Permalink Reply by Daniel Portillo on July 24, 2012 at 9:36am

Thanks for your answer.

• The APM have a year old, and some crash ;-)
• I going to monitor the voltage in my next test.
• I can't monitor the control sticks my radio is a Futaba 6EXA, but I conect all without APM (direct to the rx) and don't give me this issue.
• All mixes are disabled.
• The graphics are made with Mission Planner.

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Permalink Reply by R. D. Starwalt on July 24, 2012 at 5:15pm

With no APM and good behavior of the TFR6 and servos, it does imply the APM or connections.

Did the system work well at any time?

Do you have magnification to inspect the connection paths of the circuit board? (not likely but...?)

I have not investigated all parts of the Mission Planner yet.

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Permalink Reply by Daniel Portillo on July 25, 2012 at 4:35am

I think it is a new issue but it is possible that I had not detected before.
The paths seem OK.
You can see the graphics, you only have to check  "Tunning" in the "Flight" tab under the map.

.

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Permalink Reply by Daniel Portillo on July 26, 2012 at 12:57pm

I did some more test:

• I updated to last firmware 2.5.
• I measured the voltage in the out power rails and the voltage is stable, even when the servo shake.
• I tested all smd resistor in the path to MEGA318 and all are OK.

Anyone know what else I can do, before throwing away board?.

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DeveloperPermalink Reply by John Arne Birkeland on July 24, 2012 at 11:44pm

Make sure you have the latest ArduPPM firmware for the 328p chip.

http://code.google.com/p/ardupilot-mega/source/browse/#git%2FTools%...

http://code.google.com/p/ardupilot-mega/wiki/Encoder

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Permalink Reply by Daniel Portillo on July 25, 2012 at 4:41am

Like can I see the present firmware version of ArduPPM?

And to update this firmware I would need other board, isn't it?

Thanks at all for your help this is the spirit of opensource.

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Permalink Reply by msev on August 2, 2012 at 12:17am

John sorry for the off-topic question, but did you write the new apm2encoder firmware http://code.google.com/p/arducopter/wiki/APM2Encoder, that  makes turnigy 9x receivers initiate rth when they lose signal.

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DeveloperPermalink Reply by John Arne Birkeland on August 2, 2012 at 3:23am

Yes, the latest APM2 ppm encoder firmware (2.2.68) will set the throttle to fail-safe (900us) if you lose contact/turn of the 9x.

http://code.google.com/p/ardupilot-mega/source/browse/#git%2FTools%...

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