magnetometer are detected but no oscillation found when tuning. (beerotor F4 & radiolink se100) problem of QMC5883?

[chan2328]

FC: beerotor F4, identifier: INAV, version: 1.7.3 Running firmware released on: Sep 9 2017 10:49:35 Board: BRF4, version: 0 GPS: Radiolink SE100 (ublox M8030 with DA 5883 compass)

I can make sure that the wiring between FC and GPS is correct, and the GPS automatically detected and works fine, but the magnetometer 5883 are recognized by inav only it does not work. please see below pic. i have tried several things to do such as;

1. decreasing the i2c speed from 400khz to 200khz or 100khz.
2. connecting the vcc from 5V to 3.3V.
3. connect magnetometer with vcc, scl, sda, GND only.

the results are the same, no oscillation found by mag. this is a trick when i turn the compass vertically, the oscillation will change from -0 to 0 only, and then the magnetometer will be lost. the SCL and SDA of FC are measured as 3.3V and the internal barometer works fine. i just brought them last week, is it a issue of inav, FC or mag?

[digitalentity]

My Radiolink SE100 GPS arrived. Compass is correctly detected as QMC5883 and works correctly. @chan2328 @alanfj what board are you using? I'll provide a hex built from latest development branch and we'll check if it works for you.

[digitalentity]

Also #2699 will attempt QMC5883 detection before HMC5883 to avoid possible misdetection

[alanfj]

digitalentity, this is wonderful news! I have two large FPV photography quad drones waiting for this great new (RadiolinkSE100 compass) update for the OmnibusF4Pro board. Looking forward to the new addition! Once again, thanks!

[alanfj]

Konstantin, digitalentity, this is wonderful news! I have two large FPV photography quad drones waiting for this great new (RadiolinkSE100 compass) update for the OmnibusF4Pro board. Looking forward to the new addition! Once again, thanks!

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From: Konstantin Sharlaimovmailto:notifications@github.com Sent: Sunday, January 28, 2018 1:45 AM To: iNavFlight/inavmailto:inav@noreply.github.com Cc: alanfjmailto:alanfj@msn.com; Mentionmailto:mention@noreply.github.com Subject: Re: [iNavFlight/inav] magnetometer are detected but no oscillation found when tuning. (beerotor F4 & radiolink se100) problem of QMC5883? (#2299)

My Radiolink SE100 GPS arrived. Compass is correctly detected as QMC5883 and works correctly. @chan2328https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fchan2328&data=02%7C01%7C%7Cf3cb068919784724e1db08d5661aada1%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636527187118833443&sdata=0bfBndpWm5tnUKAkQFukHHWKxhHCVe%2BnGeVxi%2Fm9cbI%3D&reserved=0 @alanfjhttps://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Falanfj&data=02%7C01%7C%7Cf3cb068919784724e1db08d5661aada1%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636527187118833443&sdata=7pJA%2B8ifdlRazNJLwL3wsfV8hMfrgDWvW4nId%2BTBwq0%3D&reserved=0 what board are you using? I'll provide a hex built from latest development branch and we'll check if it works for you.

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[chan2328]

@digitalentity this is great news! I am using BeerotorF4 board.

[Arvycka]

Received my Radiolink TS100 today, only slightly more than 2 months after ordering it :) It's quite a bit smaller: It has the same magnetometer chip as SE100 (marked DA 5883) but here it doesn't pretend to be HMC5883 - it only works if set to "FAKE" in iNav. It also gets autodetected as "FAKE" and works right away. Only problem - it fails randomly for short periods of time, and sometimes permanently - until a reboot. Sometimes with I2C errors, sometimes without - no correlation. Tried reducing I2C speed to 100kHz - it's still failing once in a while. Mine's probably faulty :( GPS appears to work OK, haven't tried it in the open field. Sees 8 sats at home. Refresh rate 5Hz.

P.S. It has a different connector than SE100 but connector and pin-out inside the housing is the same for both.

[digitalentity]

@Arvycka so the big GPS/Compass mimics HMC5883 and doesn't work, right? I wonder how many of this flawed GPS units are out there...

[Arvycka]

@digitalentity my SE100 is recognized as HMC5883 and only works with the driver modification discussed above. They've told me they'd done that on purpose since HMC5883 had been discontinued. Maybe later they've changed that since yours is detected normally as QMC5883 and so does my TS100.

[McGiverGim]

There're two variants of the SE100, one with the real HMC and the other with the QMC trying to mimic the HMC. In the variant with QMC, it does not work because fails calculating the MAG GAIN. According to RadioLink it works for APM and PixHawk, so I suppose that these two systems didn't use the MAG GAIN or make it in a different manner.

[digitalentity]

I wonder where I can get a variant with QMC mimicing the HMC chip. I think we need a proper fix for this.

[McGiverGim]

In theory, all the new units come with the QMC. The HMC was in firsts batch only.

[digitalentity]

The thing is that new batches don't try to mimic HMC, therefore work correctly with INAV's QMC5883 driver

[McGiverGim]

As far I understood, TS100 does not mimic HMC, SE100 does. I'm wrong?

[McGiverGim]

In the specifications of TS100 it says than the mag is the QMC, in the specifications of the SE100 it says than the mag is HMC. If the mount a QMC they mimic the HMC to be compatible.

[Arvycka]

@McGiverGim TS100 does not mimic HMC, it's detected as "FAKE" by iNav, which I suppose means "QMC5883"

[McGiverGim]

Yes, I was talking about SE100 only.

[McGiverGim]

Only to be clear:

• TS100 -> specifications say QMC -> behaviour like QMC (as expected)
• SE100 -> specifications say HMC -> behaviour like HMC (so when they mount the QMC they mimic the HMC)

[alanfj]

digitalentity, When will there be the next release candidate for this fix? I'd like to give your release a try?

[alanfj]

Is there going to be a release candidate for this fix; if so when? I’d like to try it??

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From: Konstantin Sharlaimovmailto:notifications@github.com Sent: Wednesday, January 31, 2018 4:54 AM To: iNavFlight/inavmailto:inav@noreply.github.com Cc: alanfjmailto:alanfj@msn.com; Mentionmailto:mention@noreply.github.com Subject: Re: [iNavFlight/inav] magnetometer are detected but no oscillation found when tuning. (beerotor F4 & radiolink se100) problem of QMC5883? (#2299)

The thing is that new batches don't try to mimic HMC, therefore work correctly with INAV's QMC5883 driver

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[crashfrequently]

I have just received an SE100 from BG. The mag is auto detected as HMC5883 but needs the mag gain modification to the driver to make it work.

[JohnWonFly]

Dear Arvycka. I need your help. I and my friends construct drones. Flightcontroller omnibus f4 pro v2 and GPS module ts100mini qmc5883l. We cant do it works. two week we fight with it. I can understand how change code( delete magGain) Can you build firmware inav omnibus f4 pro v2 for gps ts100mini(qmc5883l)? If you can, you deserve professional rank buy program inav, betaflight and else. Please try to do this. We won a flight, but cant start...

[giacomo892]

@Arvycka FYI "FAKE" magnetometer does what the name says. It is FAKE software simulated data not coming from the magnetometer itself!!! Be aware!

[Arvycka]

Oh, I assumed it's supposed to mean qmc5883l, since it's not in the GUI list, only in CLI. Why does it give me hardware error if I set it to "FAKE" when no mag is connected or a HMC5883 mag is connected? But no error with qmc5883l mag?

update: INAV configurator 1.9.1 just came out and it has a much more extensive magnetometer list in the GUI, including qmc5883... In 1.8... TS100 would autodetect and work as "FAKE"

[Arvycka]

@JohnWonFly My TS100 magnetometer works perfectly if set to QMC5883 in INAV configurator 1.9.1 No driver mod needed.

[JohnWonFly]

Yea. Last day we install new version 1.9.1 and it works. Thank you for attention. with best regards

[digitalentity]

So, issue is resolved. Closing.

[alanfj]

I just tried the latest INAV Beta 1.9 on my OmnibusF4SD using the OmnibusF4PRO target and the “compass” still does not work. I have 2 of these Radiolink SE100’s, that I bought new in January ’18, and even reversed the polarity and still get nothing. Went into CLI and made sure it was set manually to QMC5883. The “GPS” functions properly. In AUTO it is still recognized as the HMC5883.

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So, issue is resolved. Closing.

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[digitalentity]

On some clones the QMC5883 is actually detected as HMC5883 and with latest patches will function correctly with HMC5883 driver. Please re-check.

[alanfj]

Just rechecked and the mag indicator in the GUI stays red. Checked the graph indicators and no movement. Mag in GUI turns green w/HMC5883 checked. I tried both SE100's, which have the DA5883 chip and still nothing. I have changed it manually in the CLI for it to be QMC5883 and still nothing, At present time until this fix is made permanent, I've been using other recommended GPS/MAG's and of course they all work fine. I know you and your team of experts will eventually fix it. :)

[digitalentity]

@alanfj set to AUTO, let it autodetect and check if compass works.

[alanfj]

OK, I'll try it again.

[alanfj]

Re-flashed OmnibusF4SD FC to target OminbusF4PRO Beta 1.90 and in AUTO, MAG light goes blue, showing it as HMC5883, yet there is still no movement in graph. When change to FAKE, I get a red MAG light, and when changed manually in CLI I get a red MAG light and get nothing. I have 2 of these I got at the same time and get the same results on each. Even tried reversing the I2 leads and get nothing.

[Arvycka]

Same for me - inav 1.9.0, mag is detected as HMC5883, output is 0.

[digitalentity]

@alanfj @Arvycka my bad, https://github.com/iNavFlight/inav/pull/2809 was merged after RC1 was released. Stay tuned for RC2 which should be ok.

[alanfj]

OK, thanks digitalentity!

[alanfj]

(INAV 1.9 RC2) The new release works! The Radiolink SE100 is working flawlessly. Set it to AUTO and seen as HMC5883. Set to 270FLIP. Altitude-Hold w/ Position-hold is rock solid steady! It does not flinch an inch. Great job digitalentity! Thank you!

[karl03]

Just wanted to give my experience. I have this gps on a 550 hexcopter and it was unusable on 1.8. I gave up on it for a while until I Found this thread. After updating to 1.9.1 it is working perfectly. Thank you very much to the inav devs :)