I can't arm motor
« on: June 10, 2022, 12:35:05 pm »
Hi all!
I bought an auxiliary hmc5883l mag and connected to flexi port as I2C.
I was trying to config the uav but motors didn't move.
The GCS panel show red "input" botton.
I have no transmitter and I connected an usb joystick.

Can you help me to find what's wrong?
Thank you in advance

I attach the uav setting file and a screenshot.

Re: I can't arm motor
« Reply #1 on: June 10, 2022, 09:07:26 pm »
Have you read the wiki info about this?  A wiki search for:
  gcs control
https://librepilot.atlassian.net/wiki/search?text=gcs%20control

yields this:
https://librepilot.atlassian.net/wiki/spaces/LPDOC/pages/14221378/Control+vehicle+using+joystick

which has a section about disabling RC control.

Let us know if that fixes your issue.  :)

Re: I can't arm motor
« Reply #2 on: June 13, 2022, 03:58:18 pm »
Hi!
Thank you very much for your reply!
I've just a new attemp.
I did not change a lot but i Found the sequence of click to make
connect oplink and joystick
connect the quadcopter battery
tools   options   controller           move the joystick to find 0% and 100%
verify corresponding movement on pfd panel      apply    ok
disable gcs panel
unable gcs panel
choose sw position 2
choose sw position 1 ( I found this sequence necessary)
unable arming box
throttle at minimum position
raise throttle
In this way it arms the motors.

Motors run at very fast rotations in center position of the stick.

Next time i will mount the propellers.
I hope you will help me to avoid disasters.

Before arming, the "input" botton was orange. I post the screenshot of the warning message.
I wonder if flight mode and failsafe setting are correctly set.

Thank you in advance.

Re: I can't arm motor
« Reply #3 on: June 14, 2022, 11:37:45 am »
choose sw position 1 ( I found this sequence necessary)
Your position #2 uses "GPS Assist" and generally (some exception), you are not allowed to arm when using GPS flight (or assist?) mode.  This is a safety feature.  If you arm, then wait a little bit, the GPS location (but not the actual location) drifts to a different location (say 1 meter away).  When you start to take off and it gets light, it wants to travel sideways along the ground and tips over.

Motors run at very fast rotations in center position of the stick.
Next time i will mount the propellers.
I hope you will help me to avoid disasters.
It is good to think of safety!!!
Tests with props off...  When using a very small amount of throttle, if you see low speed motors that gradually spin faster, then you are probably OK for test flights.  Still props off...  With motors spinning slowly you can move the aircraft by hand very small amounts and see some motors speed up and others slow down.  This is another good sign.

When doing first tests with props on, it is good to be outside on grass that is short enough to not touch props.  Blip the throttle up a very small amount and instantly back down.  See the props move.  Blip a little higher and instantly back down and start to see air blow maybe.  Do this a little higher till you see it start to lift off (or flip over).  If it instantly flips over at this throttle then you have something wrong and need to fix it before going farther.
https://forum.librepilot.org/index.php?topic=4408.0

If you can jump it up (and still immediately throttle off) to 6 inches / 15 cm and it is fairly level then things are set right and you know how much throttle you need to jump up.  First flights after this should be slightly higher jumps to get adjusted for hover that doesn't drift.  (same link as above has first flight suggestions)
https://forum.librepilot.org/index.php?topic=4408.0

Before arming, the "input" botton was orange. I post the screenshot of the warning message.
I have honestly not done this GCS joystick flight myself.  I can tell you that with normal RC transmitter, the INPUT changes from orange to green when you switch the RC transmitter on.  I would have guessed that the INPUT color would always be green when using GCS joystick.  I would leave the Input -> Arming set at default except that I usually set the timeout to 0 to disable automatic disarm.

I wonder if flight mode and failsafe setting are correctly set.
The failsafe settings are simply the joystick positions that it uses when it detects failsafe by some other means.  They have nothing to do with detecting failsafe.

Re: I can't arm motor
« Reply #4 on: June 17, 2022, 12:58:58 pm »
Thank you very much for your answer!
Today I made the first takeoff.
I found very difficult to manually regulate the joystick throttle.
I thought I had not enough space to do further trial.

I need automatic positioning (altitude and position).
However I'm very happy for this first take off.

I'm going to open a new topic for a new question.

Thank you very much again!


Re: I can't arm motor
« Reply #5 on: June 17, 2022, 07:14:14 pm »
(from earlier post) Did you find this link helpful for first flights?
https://forum.librepilot.org/index.php?topic=4408.0