Mikrokopter MK Firmware 0.88 online now

...might just convince me to sell off one of the WKM to finance another set of MK boards.

On the other hand this might be just the prod that DJI needs to actually fix the firmware so it works well with large frames but I think they may not even notice that Mk is catching up...

Ken

Competition is certainly benefiting us end users. :)
 

Macsgrafs

Active Member
I've held off witht he upgrade, but it seems curiosity is getting the better of me, especially seeing as a few have upgraded & nothing but good results so far. Now all we need is last weeks weather & I'll give it a go.

Ross
 

Pjtyros

Member
Hi Ross
Did the upgrade on my quad yesterday and it was super locked in out of the box. Hope to get some longer flights soon and then upgrade my hexa. Will keep you posted.
Paul
 

MombasaFlash

Heli's & Tele's bloke
I keep the MK Octo for experiments and firmware tests etc. The upgrade from .86 is straight forward - don't even have to recalibrate the compass - and an quick hop in the back garden showed great stability and nothing weird going on so I jumped straight in and updated the AD-8 as well.

Now if only Picloc would be the same .... and the camera video outputs would cooperate ....

Has anyone worked out what the Servo Filter does or how it is useful?
 
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Macsgrafs

Active Member
Hi Ross
Did the upgrade on my quad yesterday and it was super locked in out of the box. Hope to get some longer flights soon and then upgrade my hexa. Will keep you posted.
Paul

Great news.....I'm down on my knees praying to the sun gods at the moment, so cant do the upgrade just yet ;)

Ross
 

quadcopters

Quadcopters.co.uk Drone Specialists
Managed to get out for a few flights today with the new firmware on the Hexa 2 set up .
First impressions .. a big improvement over last firmware and compass errors and magnet errors that were present are no longer and this is same set up .
Height hold in Vario .. Much much better than before , but DJI still has this one in the bag the MK was sat still for quite a while but would gradually go lower and lower after a few mins hovering.
Gps Mode ...Dynamic Gps .. Again I would say a improvement on this release and 90% of the time it would hold very well and hardly move , but every so often would just drift off course by about 6 - 12 ft and then go back to position . (No stick input at all)
Weather conditions were calm and only mild gusts of max 7mph ..
I will of course try this out on a bigger machine and test more features , But I will say they have done a good job on this release , this was all tested on a 38 min flight :)

Quadcopters
http://quadcopters.co.uk
 

Macsgrafs

Active Member
Great report Geoff, at least there is a common thing being reported, so guess I hake the plunge with my SJ8 ;)
 

Tahoe Ed

Active Member
Ok, I finished loading v.88 and did the fine tuning to my Dx8 Tx since my JR9503 is in for service, long story. Anyway, I have no gimbal control. I have calibrated the ACC twice and still nothing. There is no power to the servos. I checked my connections to the FC and they are correct. Any other ideas or something simple that I missed? FC 2.1, Nav 1.1 with Mag3, GPS. PS the I did not recalibrate the Mag as the light was not flashing red and the light on the MAG is green.
 

Bartman

Welcome to MultiRotorForums.com!!
Ed,
THe only thing I could recommend is to reinstall the FC firmware. One FC of mine went fine, the other took the firmware but it didn't fly any better. I reinstalled it and it changed everything. I also had to reinstall the MKtool as it also started acting weird after a few runs on my laptop.
 

Tahoe Ed

Active Member
Thanks, Bart. When all else fails, start from the beginning. I will do a clean install, erasing all the settings, and see if that works this time. I am liking the simplified set up. It makes things, well, a lot simpler and the set up wiki is typically un-German and more user friendly. I love competition. Thank you DJI!
 


RTRyder

Merlin of Multirotors
Just back from an outing to the big flying field with my MK hexa and MK FPV quad. Wind picked up a lot right after I arrived and I have to say the A/H and P/H are substantially better in the strong wind than with any other release I've used. Come home accuracy seems to be improved as well, I haven't yet tried the Mk version of autoland on RTH but from what I saw today I expect it could come very close if not match the accuracy I've seen with my WKM.

The FPV quad flew great and the Bluebeam antennas are the best improvement I've made to my FPV gear, the only time I got any static in the feed was when the antennas were pointing in opposite directions with the TX being blocked by the center section of the quad and even then it didn't totally lose the signal.

I'm uploading video to my desktop computer now to see what the recording off the downlink looks like...

Ken
 

Tahoe Ed

Active Member
Ok, it was something stupid that I forgot. You gotta calibrate your gyros before the gimbal will work. It has been a year since I have flown this hexa and it is amazing how much you can forget in such a short time. I have been playing with the DJI's stuff and neglecting my MK. I wanted to see the difference that the new software made vs what I am getting with my DJI's. Now if the wind stays down, I can find out. Thanks.
 

RTRyder

Merlin of Multirotors
Picture of both MK at the field yesterday...

FPV1A.jpg


Heva V1 with Droidworx landing gear and Photohigher AV130 on the left and my new FPV quad at the right.

Ken
 

Bartman

Welcome to MultiRotorForums.com!!
oh how i miss the days when the front arms were anodized red! things were so much more simple then!

:)

nice looking fleet of heli's Ken

Bart
 


RTRyder

Merlin of Multirotors
This was the first time out for the little hexa with the D/W landing gear, AV130, and firmware .88, it did really well in the windy conditions. I have pretty much default settings except for the camera gimbal, also trying out the servo filtering on the gimbal which seems to help a bit. Here's the first flight of the day, you can hear the wind before the motors spool up and when it's climbing vertically in position hold. With the view from the GoPro it's easy to see how hard the Mk is working to stay in position, the frame is moving all over but the camera view is pretty steady showing it's not wandering all over the field in the wind. I'm very impressed with the improvements in .88, I could not get this degree of camera stability with either of my WKM in this much wind, matter of fact video would be pretty much useless from a WKM in these conditions...


Ken
 
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Happy Easter guys.

Ken, that video looks good. Love that little FPV quad. Need to build something like that myself.

The last few days I've finally been able to do serious testing with the .88 firmware using a Cinestar 8 with CS360° gimbal. I started by installing a 5.5lb slab of stainless steel on the gimbal as a dummy weight. The AUW of the rig was 14.84lbs. Using mostly default MK settings it flew real nice and position hold was fantastic. I needed to up the min gas in the altitude settings and then AH was fantastic as well. Winds were light at about 5mph. Ambient temp was about 55°F. Did quite a few flights with this configuration and it was just plain fun. Docile, smooth and stable. I was getting just over 7 minutes in the air before hitting 14v. ESC temps maxed out at 70°C and I did a few impressive vertical ascents which hit over 140A. By mid day the winds had picked up to about 10mph with some occasional gusts. Same performance with PH and AH. I flew nearly a whole set of packs in PH & AH about 20' off the deck watching the behavior via FPV with the SOSD and it really makes some aggressive commands using significant current to keep itself in position. A few times it did drift and get 6' or so away from the hold point but overall it seems tight. I've never stayed in PH & AH that long before so I don't have too much to compare it to. I removed the chunk of stainless and installed a 7D with a short 17 to 40mm zoom. That shaved a few pounds off the AUW. It was peppier in the air but the 'feel' of it was still great. Flight times were just under 9 minutes on average. Finally swapped cameras one last time with a Sony FS100 and an adapter using a Nikon 24mm prime. Still need to weigh that combo but it's less than the chunk of stainless. That configuration flew great as well. Flights were just under 8 minutes before packs hit 14v. The difference in weight between all the setups was within a few pounds and I didn't need to make any further changes to AH. A couple of times I flew pretty far away via FPV and then switched into CH mode. I never had any problems with CH in .86 and it worked perfectly with .88 as well. I chickened out doing a full auto-land but maybe next time. I think it would work but I would feel better seeing it in action successfully land a smaller machine first. Some of the overall settings I did change from stock were to reduce the Stick values by a few ticks, reduce the ACC Compensation by quite a bit so that entering PH was smooth and gradual, reduce the GPS gain to 92 and added a bit more expo in my TX for cyclic and yaw.
 

Tahoe Ed

Active Member
I just went out an flew my MK Hexa and my WMK F550 Hexa. Winds were light and the temps were in the mid 70's. Perfect flying weather. I don't know what I am doing wrong but on the default settings the MK was clearly inferior to the WKM. I am going out again after I charge some lipos with a friend of mine. Any suggestions on tweaking the settings to get better position hold and altitude hold? The MK would hold in a 2M radius and the WKM in a <1M. Altitude hold was =/- 1M with the MK and less that +/- .25M with the WKM.
 

Bartman

Welcome to MultiRotorForums.com!!
Ed,
One of the Okto's that I updated flew like crap with the new firmware until I reinstalled it. Now it's great. Maybe the guy that designed Windows 95 is working for MK now? What's next, the blue screen of death?
If you didn't try the reinstall when the gimbals wouldn't work I'd try it now. Did you redo the ACC calibration after doing the firmware upgrade?
Bart
 

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