Couldn't arm motors in Guided mode

ArduCopter
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1

Hi,
I am trying to arm copter without pre-arm checks and 3D fix.
I disabled all pre -arm checks which led to arm copter in STABILIZE mode.
But i couldn’t arm in GUIDED mode, i am new to these, would some one please help me to resolve.

AHRS_GPS_USE = 0
ARMING_CHECK = -9

Actually its showing pre-arm:EKF2 still initializing
i tried tuning

Any of your View or suggestion is highly appreciated.

Hoping for positive response.

2

Why do you want to arm in GUIDED mode? AC can fly only to specified GPS coordinate in this mode, so you’ll can do nothing after arming.

3

Thanks for your response @speakerx
Actually I would like to control pitch, roll and yaw https://stackoverflow.com/a/42273257
To operate drone without GPS accessibility.
Hope I am making sense.
Would you share me any views on how to approach this :neutral_face:

4

I believe GUIDED requires GPS, so this mission wouldn’t work?

https://ardupilot.org/copter/docs/flight-modes.html

5

hi @jax200
Thanks for your response. I tried to takeoff in STABILIZE mode, i couldn’t see any response from motors.
vehicle.simple_takeoff(takeoff_alt)
after i tried to switch GUIDED and arm, when i am arming it again gave EKF2 still initialising error,
Would you share any other thoughts

6

First get everything working in a standard configuration with RC control and GPS and well tuned.
Once it flies well and is reliable, disable the GPS and try GUIDED_NOGPS
https://ardupilot.org/copter/docs/ac2_guidedmode.html?highlight=guided_nogps#guided-nogps

If you jump straight to flying guided or without GPS you will never be able to tell where issues and faults are coming from.

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7

I edited my previous response.

Follow Shawn’s advice. Also ensure failsafe is set, and consider using a weighted tether and lower altitude when first using dk.

Also noticed from another posting if these parameters might be a factor.
image

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