Preflight Fail: Compass Sensor 0 missing
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Hello, the top of the starling2 that holds the gps broke off and now I get the error Preflight Fail: Compass Sensor 0 missing. How do I fix this? I still have the gps, but did something else get lost or get loose? What exactly is the compass sensor in the starling 2. Also, for my endeavors, I don't need gps, so is there a way to prevent this error?
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@Nitin-Varma-Vegesna In
/etc/modalai/voxl-px4.confset GPS to NONE. Then set the PX4 parameters SYS_HAS_GPS, and SYS_HAS_MAG to 0. Set EKF2_MAG_TYPE to 5. Set EKF2_GPS_CTRL to 0. Then reboot and see if the preflight error is cleared. -
@Eric-Katzfey Ok, also is there a way to buy the GPS chip since I did not see it on the available products?
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@Eric-Katzfey Also, for EKF2_MASG_TYPe, my options are Automatic, Magnetic Heading, 3-axis, VTOL custom, MC custom, and None, which corresponds to 5?
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@Nitin-Varma-Vegesna None
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@Nitin-Varma-Vegesna I think it's this one: https://store.3dr.com/mini-gps-ublox-max-m10s/
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@Eric-Katzfey Ok, thank you!
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@Eric-Katzfey Now, it arms successfully, even though it says Preflight Fail: heading estimate not stable and Preflight Fail: Yaw estimate error. Is this an issue?
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@Nitin-Varma-Vegesna If you are just flying in manual or altitude hold modes then those shouldn't be an issue.
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@Eric-Katzfey What about autonomous control indoors, and how could that be fixed if it's an issue? This is with a new GPS as well. Do I have to configure anything? Also, for the EKF2_GPS_CTRL, I reset to default: 7
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Here is an image of when I start autonomous exploration (not flying yet) but moving it with hand, I am getting these preflight errors that I used to not get.
This is with SYS_HAS_GPS, and SYS_HAS_MAG to 1, EKF2_MAG_TYPE = Automatic, EKF2_GPS_CTRL = 7
Also, voxl-inspect-gps is saying NO GPS for fix type:
dt(ms) |fix type|Sats|Latitude(deg)|Longitude(deg)| Alt(m) |Vel(m/s)|HorErr(m)|AltErr(m)|
129.5 | NO GPS | 0 | 0.0000000 | 0.0000000 | -17.0 | 0.00 | 4294967.295 | 4092465.408 |^C -
@Nitin-Varma-Vegesna If you re-install or update your SDK to the latest it will properly set all of the parameters.
