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APM multiplexer issue

Hi,

 

I am running APM using a separate power source(a 2S lipo) on the aux power lead(unsoldered SJ1 blob jumper). I have realized that if I disconnect power from this connection, I lose all control of the servos.

 

The failsafe document says I can repro

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C syntax question

Just reading the code for familiarisation. Could someone explain the syntax ".f" in the following line from ArducopterMega.pde please?

G_Dt = (float)delta_ms_fast_loop / 1000.f; // used by DCM integrator

 

Thanks

 

 

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Quadcopter startup issues

 

I am having strange startup issues with my Quadcopter. When connecting the battery, some motors might start with their beep sequence as normal while others might have kickback. It is not always the same motors that produce these issues. Sometimes th

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Using Arduino Mega

The APM 2.0 libraries can be run on the arduino Mega?I would like to connect the IMU-Shield Oil pan with the Arduino Mega for reading gyros and acel.So my questions is that, if the libraries to read the analog sensors can be used by the arduino mega?

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Stuck Z Gyro - Can I fix it?

Hi,

I have an APM with a Foxtrot IMU and my Z gyro has stopped working for the second time.  The first time I sent it back to Jordi and he returned it saying all was good  - nothing wrong with it.  Well, that was a bit embarrasing - I though I was goi

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HK GCS Airspeed

Hello,

 

I am not able to read airspeed with the latest version of the GCS. 1.2.109

Airspeed tests ok in the CLI.

Is there an option in the GCS to enable airspeed?

 

Thanks

 

 

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Tweaking alt hold.

When I engage Alt hold the quad climbs a little bit and drops again, then goes up but a little further. Then goes down again and the distance keeps getting bigger.

I only use baro.

Which PID has influence on this vertical oscillation? 

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