Use the calculated MOT_THST_EXPO to suit your props, 0.76
There’s been reports of 0.4 working well with the integrated Motor/ESC combo too, so maybe you could start with 0.6 and see how that goes, then adjust up or down as required.
After changing this allow plenty of time in ALTHOLD hovering to ensure a new MOT_THST_HOVER is learned.
- set too high you can see instability at low throttle
- set too low you can see instability at high throttle
And everything the other guys said…
Definitely use these settings for the Harmonic Notch Filter to start with
INS_HNTCH_ATT,40
INS_HNTCH_BW,18
INS_HNTCH_FM_RAT,0.7
INS_HNTCH_FREQ,36
INS_HNTCH_HMNCS,7
INS_HNTCH_MODE,1
INS_HNTCH_REF,0.18
INS_LOG_BAT_MASK,1
INS_LOG_BAT_OPT,4
The frequency might need adjustment but it will be close enough for now.
The trick with relying on FFT to get your data and settings → is the FFT_MINHZ value for anything larger than a old F450 frame. This needs to be about 30Hz. And maybe a few other FFT settings need adjustment too. FFT ends up being focused on one of the harmonics instead of the actual problem frequency. You can bet the frequency to target will be half of the frequency that FFT found, in this case.
Set FFT_ENABLE,0 for now and you can come back to it later if required.
If you’re going to have many varied payloads this can be useful, otherwise throttle based HNOTCH will be fine.
Adjust these a bit
BATT_FS_CRT_ACT,1
BATT_FS_LOW_ACT,3
I would definitely set
FENCE_ENABLE,1
Seen lots of logs where people think they are good to go, but the GPS position is still wandering and it causes a tip over or worse. This should be the default for anything larger than a very small quad.
I’ve seen a big CF prop make a sizeable dent in a galvanized steel boat trailer, so imagine what it’s going to do to a meat bag when the copter thinks it’s got to go home to the Sea of Japan or somewhere random.
EDIT:
The effect of the Fence is, it doesnt allow you to arm in any mode until Home can be set. If it seems to be taking a long time that’s because the GPS position is still wandering. It’s best to just wait and use the time to think about the planned flight.
You can set
GPS_GNSS_MODE,7
to limit the number of constellations and potentially improve the time to a good HDOP and 3D fix.
Also change GPS_GNSS_MODE2 to the same value.
Use the popup selection window in MissionPlanner (when you go to change that value) to make selections, use whatever works best for you, but I think 7 or 3 will be your go-to values.