Upon takeoff my quad does an immediate clockwise yaw about the same number of degrees between the arrow on the Nano case and the GPS port. It then wants to remain facing in that direction. I did not enable the GPS in the FCT and I do not currently have the GPS antenna screwed into the Nano.
I am trying really hard to get into the habit of leaving the transmitter on while I disconnect the quad battery. If I mistakenly turn off the transmitter first, the blades on the quad begin to spin. I imagine the Nano reads that information as a lost signal and attempts to adjust throttle to land the craft. Is all of this correct by default?
Where might I be able to pick up a spare GPS antenna? Are they typically universal? What is the connection type?
This is a normal behavior with MultiRotors in general.
If you didn’t activate any modes then the Quadrino is not trying to keep your heading.
You can modify the “Fail Safe” values in the FCT or de-activate it.
This is mostly to keep your copter in the air if you have a transmitter glitch or lost of signal.
The GPS antenna could be ordered from us, just not visible online you would have to ask us.
Otherwise this is a standard SMA connection.
Thank you for the info. Any thoughts on what to correct for that initial turn? It is very consistent and it is more powerful than a small trim adjustment. It very much wants to face in that particular direction. It does not keep wanting to yaw clockwise once it finds the happy spot.
It turns out that I did have the GPS enabled without my antenna on. I am not sure that impact would have on the heading it wanted to take while hovering. I was looking at the “MAG mode” response and I want to make sure that I understand.
I did not see anywhere to enable that mode on the FCT
I did see where I can enable MAG by assigning it by highlighting the associated box with an aux switch.
I have AUX2 currently programmed to switch to Horizon mode when flipped from 1000 to 1500
Should I have MAG enabled at all times and assign it to something like AUX 2 and highlight the box for low/med/high? I did try this with WINGUI and the boxes remained with the highlighted orange after I attempted to write them to the Nano using the write button on the top. Not sure why the write appeared not to take effect.
Will this in fact keep it activated at all times and is that a good thing?
Are there any disadvantages?
I am still just trying to correct for that desire to turn clockwise about 22 degrees and stay facing that way.
The HORIZON mode is will keep the copter Level but will not have any impact to the “Yaw / Heading” of you copter.
You can activate the MAG (in WinGUI / MultiWiiConf) to get that heading stabilization.
Up to you if you want to get them activated all the time.
If your PID settings are good and you do not plan on flying without stabilisation you can check all the boxes so they are always ON.
I was wondering if someone had any good suggestions on PID tuning. I have watched countless videos and I understand the basic concepts regarding wobble and responsiveness. I am still noticing clockwise yaw on throttle. It would be nice if there was some sort of chart that had something like the following:
If: Increase Throttle Result: Clockwise Yaw ThenTune:???
If: Increase Throttle Result: CCW Yaw Then Tune:???
If: Increase Throttle Result: Pitch Forward Then Tune:???
If: Increase Throttle Result Pitch Back Then Tune:???
If: Increase Throttle Result: Roll Right Then Tune:???
If: Increase Throttle Result: Roll Left Then Tune:???
The WinGUI PID settings are a bit much for me to comprehend as I am still learning. I am very happy with the product. I am certainly off the ground and flying. the purpose of this particular rig is to reach a certain elevation and hover to take smooth video. I do not need it to be super responsive. I am looking to achieve a nice stable hover.
I have my 3 position switch enabled to select horizon mode for stability.
Are there any other settings I should pay particular attention to or enable to give me that nice stable hover that I am looking for?
First would be to try the FCT PID tuner, this was created to help
If you experience YAW movement you should enable the MAG as well as this is what keep the heading.
Assuming that everything is balanced and tuned I should get a stable hover by assigning a switch to enable Baro/Mag/Horizon and enabling it once I get to a desired position? Does this sound correct?
You should not trigger the Baro unless you are in height as it will use the Barometer air pressure to get the altitude.
So my suggestion would be Horizon + MAG and use the FCT for basic PID tuning
