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Z axis accel implementation

I read a post somewhere about activating the Z-axis accel. Can't find it now.

 

I would like to activate the Z-accel to stabilize the altitude at hover. Want to be able to demonstrate the push the copter down and it pops back up to where it was.

 

Could

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APM cannot start

Hi All:

   I had a strange problem. Today I connected the APM to RC, PDB, sonar, xbee as usual ( I am sure in the correct way). I found when I pluged in the battery those blue and red leds were only on for a short time and off after that the apm becam

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Xbee RTH failsafe

So I am interested in playing with FPV, although I am paranoid that if I fly more than several hundred feet away I will lose the signal and crash.  So what I am interested in is a failsafe that will automatically trigger RTH when either direction of

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Puzzled Newbie question

Trying figure out how arming sequence changed from bottom right to top right after Apm reset. After a flying, next time I powered up Apm would not start motors but green light stayed on. I reset Apm and when it armed it became to right and caused a c

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Takeoff Stability

Hello,

I have finally completed my arducopter.  All the bits telemetry,sonar and motors seem to work ok, but the one thing I can't seem to do is takeoff.  The front of the arducopter (in x configuration) seems to rise up before the back.  I can compen

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