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compass setup

Hi

I'm not sure how the on board compass setup is supposed to work on a hex. I connect via 915 M link and every thing looks good except the direction on the flight data screen is always out by alot like 180 degrees. Everything flies good in manual and

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Ch 7 Opt - Auto Mode

As a suggestion it would be really nice if we had Auto option for Ch 7

I have Auto set on my 3 way switch bottom, but the other day I was in mid switch and thought I was in top, I went down one and my quad flew up and hit the trees, then crashing down

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System Identification of quadrotor

Hello,

Has anyone used the system identification toolbox to model a quadcopter? I would like to generate a model using system identification, either using black box modeling or grey box modeling. 

I can utilize some suggestions to get started.

Thank you

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Using a computer joystick without RC

Hello,

Quick question. Can I use a joystick for manual control without RC? 

I successfully enabled my joystick. When APM is connected to an RC receiver, MP shows various PWM values in ch1out ~ ch4out according to the throttle stick movement.

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However, al

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3DR version 1 Air module

Quick question guys, I have a 3DR version 1 air telm. module that has 4 wires. I need to find out what the terminals are on the 2.5APM. It looks like the inboard pin is VCC and I assume the outboard pin is ground. I am not having any luck at what the

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Need quick help on PID!

Hi all this is my first entry on DIY!

This site has helped me a lot, and i hope to give my contribution someday

So here's my problem:

The picture is my current PID configs. 
The copter hovers stable although when the wind comes he takes a big punch. Shou

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alt error -2612 (v2.9)

I did a waypoint flight today and noticed that it did not hold altitude well at all.  Climbed and descended a lot.  7-10 mph winds so maybe thats why.

So I took a look at the kmz and noticed that all the points had a "alt error #".  I am not sure if t

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UDrones HexaCopter ARF questions.

Hi everyone !

I recently got the Udrone Hexacopter including the gimbal with the lot and have a few general questions which im sure others will also have especially if they have little experience.

Resources

It would appear that there are quite a few oth

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Is my APM broken?

Hello,

I'm trying to figure out if my APM board is broken or not. While my copter is flying in stabilize mode, it often suddenly change its orientation. First, I thought STB_YAW_P & STB_YAW_I would be too large, so I reduced these values. However, the

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