I am using QGroundControl with Pixhawk 2.4.8 for my F450 quadcopter. After the calibration process, the compass is showing compass x(number) A deg inconsitstent. For reference i have attached an external gps powered by Ublox 7m also i have tried to mount in different location also still i cant resolve the issue.
Also tried to calibrate the drone outside in the open space still same issue.
Thanks for reading
a) This is not really a QGroundControl issue. Rather a drone related issue and should be placed in such an appropriate category.
b) You didn’t supply any information regarding what system you are using. Is it PX4 or Ardupilot ? - What version?
c) a .bin file would be helpful to see what is going on
d) such problems are often related to wiring being close to FC. Especially wiring to motors or main wires from battery. Those can create a strong magnetic field and impact on the performance of any compass. –> Twist those sort of wires if possible. This can help to reduce impact from magnetic interference.
actually i am using PX4-1.16.1rc
what i tried and worked for me was disabling the COM_ARM_MAG to -1 (PS: I believe disabling this might have created some issue)
But now, when i am flying the drone, the drone is bouncing and hitting the ground again and again (LINK of video given - Drone Log and Video). Also, I have attached a .ulog file if it would be helpful
Any Help would be appreciated
Hello,
It looks like your battery is not enough to lift your drone. Also are you using any downward sensor .
Ok I will try changing the battery and no there is no downward sensor
I have changed the battery to new one but now the motor are getting directly extreme throttle after arming when the input throttle is too low this are the log files while i was testing on thrust stand Log 2, Log 3, and Log 4.
Calibrate your RC transmitter
I have calibrated my RC but when i am connecting via mirco usb cable the radio input shown on QGroundcontrol is very smooth but when i connect it via telemetry the radio input shown on QGC is very laggy. Is there any way to fix it?
You could also try to calibrate the ESCs: ex.ESC Calibration | PX4 Guide (main)
Also, could you share the logs here: https://review.px4.io/ and then paste the link? I do not like downloading random things from gdrives…
Slight RC lagging on QGC is very normal and should not worry you - unless its more than like half a second.
this is the last flight log and it is lagging more than more than a half a second
PS: i am using test stand for testing my drone to avoid any mishap
Could you again restate your exact problem?
Does your drone work properly if you use manual mode or stabilized mode?
Is there a delay in the motor response when using manual mode?
Yes there is delay in the motor response when using manual mode. I Have tried RC and ESC calibration multiple times but still the same problem. Also when i am connecting wireless the RC inputs shown on QGC are very laggy. and i have changed the wires of the reciever connected to pixhawk.
It works fine until Arming but it between i see jump in Throttle or the drone is unable to take inputs
What you are describing sounds very much like a low baud rate setting.
What wireless connection do you use to your FC ? WiFi?
If so, check baud rate setting of your FC and also at your GCS (Computer, Tablet,….or whatever you are using).
I’ll bet you are only using 9600 baud or so, this is way too low for all the telemetry data.
You’ll need at least a 57600 baud rate setting, or 115200 if your FC can support this.
i am using telemetry to connect the drone and the GCS connected via usb
I have changed the baud rate to 57600 but still same issue also i calibrated the RC as well
I was talking about your wireless settings for telemetry. - Not the cable.
Both sides need to be set to at least 57600 baud.
