At Rest the GYRO measurements are at zero, the MAG shows small fluctuations around zero, the ACC ROLL & PITCH is zero but Z is > 500. Is that normal? If so, what is it telling us? TY in advance – Bob G.
This is indeed a normal value, it is scaled that way in MultiWii.
Once calibrated, the value will be similar to your reading.
Many thankx for the quick response!
I was searching this forum of an answer to a question that I had and this was the closest thing I could find. After Acro gyro, stable ACC, and MAG calibration I am showing the following values for Magnometer readings:
Roll: fluctuates between -1 and 1
Pitch: fluctuates between -9 and -12
Yaw: fluctuates between 37 and 40
This is with the copter completely still on a gymnasium floor, battery not attached, no motors running so no vibrations etc…
I assume that the roll is within specs but I do not understand the pitch and yaw readings.
I also set my declination at -14 11
http://webkit-fake-url://37070b4d-e327-415e-b8f4-f9da302b3c58/image.tiff
The only calibration needed is the ACC (Accelerometer) and MAG (Magnetometer).
Be sure to turn the Quadrino Nano 360deg on each axis while doing the MAG calibration. (Tutorial)
Once that’s done, you will still see some changes in the values (fluctuations).
I took a series of screenshots (mostly from multiwii) to help me frame my questions and concerns. I am still trying to eliminate a clockwise steady yaw of about 22 degrees.
I have the declination reading from magnetic declination.com and I put that into the FCT and multiwii and wingui. The readings on gui showed me that I had no roll, no pitch, and that the quad is facing north (within a degree or so. This was after I used the ACC and MAG calibrations (following the MAG technique you sent me).
I don’t understand why the picture I labeled graph questions would show a pitch of 14 and a yaw of 40 with the quad facing north on a flat surface with no power other than the usb to the nano. Transmitter is off. Even though the FCT PID values are different than the multiwii values I did not “write” them to the Nano. I would very much like and appreciate any suggestions that you might have for PID settings as I currently have them at 4/4/6.
I believe my settings will enable the Magnometer in Acro mode as well as when I shift over to Horizon. I am leaving Horizon out of the equation for the time being as I am trying to get things tuned. I am mentioning this because you had recommended that I enable the Mag to try to correct the yaw. I believe I have done so properly.
wikisend.com/download/804386/declination.jpg
wikisend.com/download/413358/fctdeclination.jpg
wikisend.com/download/959720/FCTsettings.jpg
wikisend.com/download/395992/graphquestions.jpg
wikisend.com/download/519986/GUIPIDS.jpg
wikisend.com/download/342994/gyrofilter.jpg
wikisend.com/download/781972/multiwiigraph2.jpg
wikisend.com/download/724684/multiwiisensorreads.jpg
wikisend.com/download/509286/webdeclination.png
wikisend.com/download/268850/sensorreadings.jpg
wikisend.com/download/734836/magenable.jpg
You might want to use the build-in attachment tool for images, it will make things much easier.
Can you post picture of your “RC Control Settings” page with your MAG activated and not activated ?
This is what I get using the insert image tool.
http://https://drive.google.com/open?id=0Bw91soNoYLihRGlBdEROLS1TaVU
This is not an “attachment” but a image from a google drive.
There is nothing selected for any modes in your image.
I have spent the better part of this hour trying to find that tool as it is hidden behind the small arrow to the right. I was using the options in the message body.
For some reason when I put 14 11 into declination and press write it defaults back to 14 6
I have no clue why they are upside down they are saved right side up.
The first 2 pics are what I see with the FC settings in pic 3
the 4th pic is what I see when I have the FC settings as in pic 5
As the TX is off I am not sure why horizon mode and mag were enabled in red. I had the TX settings to enable Magnometer on all positions of a 3 position switch and horizon enabled only on the mid position of the switch. When the Nano was powered by just the usb cable (and TX off) it seems like it defaulted to reading horizon and Mag as active. Why would it do this as I only had horizon enabled in AUX 2 when the switch is in middle position? When I unchecked all the green boxes and wrote the change to the Nano it defaulted back to Angle.
If it helps the Aux 2 is linked to my pitch curve set to 0/50/100 settings.
I think you are doing too many different tests without knowing exactly what you do.
Set you mode on an AUX from your R/C system and select only “Horizon” and “Mag” only for one of the switch side, the other one No mode at all.
Modes will work if you have a Receiver and signal going to it, not sure why you test with only the USB connected.
It make more acurate images if you use the “Print Screen” button of your keyboard to take them.
Note: one of your picture even show settings on “Land” feature.
I removed all of my aux switch bindings and I am back to basic. I have noticed that my gps sensor is fluctuating. I calibrated ACC and MAG several times and it shows between 194 and 202 degrees. This is on the “dial” view.
Can this be normal?
What is it the you are recommending that I do?
From the link that you sent me I believe that you are suggesting that I enable MAG-heading lock mode?
As I mentioned I have not set up horizon and angle switches because I am trying to keep it simple for now.
I added the tower to my setup to separate the fc from interference as I thought it might be causing that fluctuation that I mentioned but I still have it.
Can/should the MAG mode be enabled in config.h file and left alone rather than bind it to a switch?
Thank you.
The MAG is what give the Quadrino Nano the heading.
Most people will have a switch to go from No mode to another more stabilized mode like Horizon + MAG.