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double sided tape is ok. Just don't cover the hole in the pressure sensor with anything other than foam. Since I use the HoverflyGPS all of the time, I just have a piece wedged between the pressure sensor and bottom of the HoverflyGPS. For altitude hold. Make sure you have v4.6r2 flashed...

I'm not suggesting it's a receiver problem. The use listed on the DPCav site is just another application for the same part. This wouldn't have anything to do with your receiver. The boosters need to go between the ESCs and the HoverflyPro. Basically they isolate the HoverflyPro from the load...

Have you checked your barometer in the setup client? Each tick is 1ft. It should move (slowly) as you move your HoverflyPro. Most of the time I engage altitude hold at eye level. It basically stays there. Also, is your artificial horizon level? Is this only with the one board? You had...

The gyro calibration should not have to be done again. Sometimes, I will suggest it as part of the troubleshooting process. However, most users can ignore this kind of thing. -George

This issue is not specific to Hoverfly. Every compass in every multi-rotor needs to be calibrated. Nor is our compass particularly sensitive. Any flight controller with the compass placed in the same position on the same setup would experience the same issues. Motors should not be running...

The motors should not be running when doing the compass calibration for a multi-rotor. If running your motors causes interference with the compass, no amount of calibrating will be able to fix it. If you're seeing compass issues, using the external mag is about the easiest thing I can tell...

Really happy to see you guys are having success!!

To me, it looks like the compass wasn't calibrated correctly. I just tried it on my test rig and I didn't see the same thing happening. You may want to disable the mag hold in the setup client until the problem is resolved. You should calibrate the compass, then verify the calibration through...

Just to save you time. Here is how you should proceed. Flash v4.6 r2 to both the HoverflyPro and HoverflyGPS. Pay particular attention to the program switch positions. Disconnect the USB cable from the HoverflyPro and re-connect it. When the HoverflyPro's LED is flashing red, it is...

Yes, it's been tested by me personally on everything from a little micro quad to a giant Erista sized Octo. I haven't seen anything yet to suggest there is an issue in the code. The setup client issue has also already been fixed in v4.6 r2

v4.6 r2 is exactly v4.6 with one change. It fixes a display issue with the artificial horizon while connected to the setup client. Updating presents just about no risk, if you're confident you can flash your HoverflyPro/GPS without a problem.

It does sound like a calibration problem. Make sure the axis of rotation is always perpendicular to north. If it's parallel, you will get a bad calibration. Then things like what you describe could happen.

In terms of the bouncing you are seeing, you should probably reduce your gain a bit to get rid of it. v4.6 has a new piece of code with gets rid of high frequency jitters, but the gain may need to be lowered.

Sorry to hear this. Can you confirm that you have used the v4.6.0.2 setup client to do your accelerometer calibration?

The automatic update you get just makes the old setup client show you an error message if you are running v4.6. Autolevel always uses the gain that you see listed for main gain in the setup client. It sounds to me like your gain is just a little too high.

Sorry, I want to make sure this is super clear because it's very important. Everyone needs to go to Hoverfly's site and manually download the new setup client. The version of the setup client HAS to say v4.6.0.2. If it doesn't, your accelerometer calibration will not work correctly...

So, did anyone find anything useful?

With v4.6 the HoverflyPro won't arm if the HoverflyGPS has an error condition (flashing purple). You just need to wait for the HoverflyGPS to go red indicating it is waiting for a fix.

I haven't used that particular frame, but I do fly a small quad with 8x6 props. The smaller props work really well and I've never had a problem.

Haha. Sorry Pete. Not trying to direct so many posts your way, just trying to make sure everyone gets the message :)