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Old Nov 21, 2011, 01:09 PM
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OLDTOM's Avatar
United States, TX, Waxahachie
Joined Jun 2011
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I have several kk boards in different multi's and they work with analog servos in my tri's....... quite well with differnt fw, I have been thinking about putting my hk kk board in a foamy to see if I can get a hands off hover... ha...ha..

I don't think you need any special servo for the kk board..


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Old Nov 21, 2011, 01:52 PM
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VTOLicious's Avatar
Austria
Joined Oct 2007
281 Posts
Quote:
Originally Posted by backbone10 View Post
Hi all,
does anyone have experience using the HK Board with KK Software for a plane (e.g. parkflyer) ?
did you have any success ??
what kind of servos would work with the high refresh rate ?
does it make sense - or why not ??
is there something special to take care , any help is appreciated ..

i went through this mega thread, but was not able to find answers..

thx in advance

tom
Hey backbone! KK-board controlling servos? Have a look here:


Post#7734, my request:http://www.rcgroups.com/forums/showp...postcount=7734

Post#8521, the KK solution:http://www.rcgroups.com/forums/showp...postcount=8521

Post#8550, the Minsoo solution #1:http://www.rcgroups.com/forums/showp...postcount=8550

Post#8611, the Minsoo solution #2:http://www.rcgroups.com/forums/showp...postcount=8611

Have fun!
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Old Nov 21, 2011, 09:40 PM
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Australia, VIC, Melbourne
Joined Oct 2007
2,843 Posts
I had a digital blue bird bms on my tri and it twitched so much after the kk was armed. I took it off and went back to an analog which works fine.
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Old Nov 21, 2011, 10:38 PM
Flying like a bird!
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Saudi Arabia, Riyadh Province, Riyadh
Joined Feb 2010
252 Posts
Hi friends, ( Second time I am posting this message)
It is really fascinatting to see KK multicopter development.
As many fans dream... I too like to have compass, accel, baro and GPS options.
Any body has 'C' source file for the KK multicopter.... Pls provide me. I will experiment, if I succeed I can share with our KK multicopter community.

Also I like to know anybody has comparision of all flight controller boards?
Which has better stability???

Thanks
Dominic
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Old Nov 22, 2011, 07:22 AM
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Joined Dec 2005
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hi,
thx for your answers. i have to go through ..

still not answered : does it make sense to put it into planes ? what will it make possible, or better or worse - with small parkflyers

br

tom
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Old Nov 22, 2011, 05:27 PM
Fly Like A Thing Posessed!
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USA, FL, Fort Myers
Joined Nov 2010
1,777 Posts
I have just one comment about quads...

If yours has not yet looked like mine does in the picture below, then you're playing it too safe!

Lol kidding mostly, but I just got back from a freaking fantastic FPV practice flight... actually a couple. She flies just amazingly stably now compared to how she was, and even on my high rates setting at times I thought she was a bit too tame. I'm used to her being wild in the pitch and roll, so now it just feels weird because I can sit still or float along at 1mph just so easily... It feels like even if I do ram the stick forward, I won't get much. It's not true, believe me haha. I may go and up the rates yet more now that she's flying so beautifully.

Anyway, just wow... Speed runs, circle strafes, in place hovers, inspection of various low and high objects... this run was really impressive. I finally ended it by snagging a tall weed, flipping over, and breaking that arm, but I must have gotten about 20 minutes of footage before that happened... GOOD footage. Funny thing was, I didn't go out there to get footage in the first place - it was only just a flight training session. I only recorded the FPV feed just in case she got out of control and a little lost in a crash. So, I didn't bring my voice recorder and didn't bring my Canon T2i for intro and outro, because I never intended a video for upload from it. Seems very ironic to me now after doing so very well on these two flights.

Or, to summarize:

I LOVE MY QUAD!!! THANK YOU KAPTEINKUK!! :-D

Rick NR417

Little Edit: Analysis of tonight's video footage shows 34mph top speed in level flight. I am hoping for better! :-)
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Last edited by NightRunner417; Nov 22, 2011 at 07:11 PM.
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Old Nov 22, 2011, 05:30 PM
Fly Like A Thing Posessed!
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USA, FL, Fort Myers
Joined Nov 2010
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And I'm a twit... here's that picture:

Rick NR417
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Old Nov 23, 2011, 04:55 PM
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Joined Sep 2011
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Stupid noob question, please bare with me.
My first quad was GAUI 330x, and now i am advancing to KK. There is a 1 issue i could not find answer too, may be because it is too obvious for everyone except of me :-)
In 330x, when connecting motors to ESCs, 2 of them should have switched negative and positive wires, i.e. negative of ESC to positive of motor and vise verse. Is it true for every quad? Is it an only way to make motor spin in other direction or other flight controllers do it by themselves without a need to switch wires?
Thank you.
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Old Nov 23, 2011, 06:21 PM
If it flies, I will crash it
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USA, CO, Westminster
Joined Jan 2008
3,024 Posts
Brushless motors are three phase motors. If you fire one up and it is turning in the wrong direction simply disconnect any two of the three wires between the motor and ESC of that motor and switch them. The motor will turn the other way.

Rob...

P.S. Noob question yes, absolutely not stupid. Being informed and educated is smart. Having the courage and good sense to ask is wise.
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Old Nov 23, 2011, 06:35 PM
Fly Like A Thing Posessed!
NightRunner417's Avatar
USA, FL, Fort Myers
Joined Nov 2010
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Quote:
Originally Posted by Aradan View Post
Stupid noob question, please bare with me.
My first quad was GAUI 330x, and now i am advancing to KK. There is a 1 issue i could not find answer too, may be because it is too obvious for everyone except of me :-)
In 330x, when connecting motors to ESCs, 2 of them should have switched negative and positive wires, i.e. negative of ESC to positive of motor and vise verse. Is it true for every quad? Is it an only way to make motor spin in other direction or other flight controllers do it by themselves without a need to switch wires?
Thank you.
It's not a stupid question at all. Not every quad needs this.. it's only for the ones that have two pair CW props and two pair CCW props. Some use all four CCW rotating props, and so each motor spins the same direction. So far as I know, no controller does the job of reversing the motors - it's all done by reversing two of the wires on two of the motors.

Right now, my own quad is doing the pair of normal and pair of reversed thing, because I am using two pusher props and two tractor props. The pairs spin opposite each other and thus cancel out torque rotation on the quadcopter. Soon, however, I will be going to all tractor (CCW) props, because I break a lot of props and pushers are almost twice the price of tractors. All four motors will be spinning counterclockwise, and because of this, torque rotation becomes a big problem. The problem is resolved by angling two opposite pairs of motors by 12 degrees AGAINST the torque spin direction. This cancels the torque rotation while still allowing yaw control, and allows one to stick to purely the cheaper and more easily available tractor props.

My motors are currently all hardwired, but I'm going to put bullet connectors on just those two motors that I need to un-reverse. This way, should I decide that all CCW props is not for me, all I have to do is pull the connectors apart and switch wires on the two motors, and then change the angle of the motors back to all vertical, and I'm back where I was with push and pull configuration.

I hope that clears things up a little and doesn't make it more confusing!

Rick NR417
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Old Nov 23, 2011, 10:58 PM
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Quote:
Originally Posted by NightRunner417 View Post
I hope that clears things up a little and doesn't make it more confusing!

Rick NR417
Thank you very much for full answer, it not confusing at all.
The problem is that my quad flips quickly the moment it leaves the ground, and now i am out of ideas why. I made all the required calibrations (stick centering, ESC programming, throttle range), i tried to increase gain almost to 100% both for roll and for pitch, but sill it flips over. Do i miss something?
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Old Nov 24, 2011, 05:02 AM
Fly Like A Thing Posessed!
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USA, FL, Fort Myers
Joined Nov 2010
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Quote:
Originally Posted by Aradan View Post
Thank you very much for full answer, it not confusing at all.
The problem is that my quad flips quickly the moment it leaves the ground, and now i am out of ideas why. I made all the required calibrations (stick centering, ESC programming, throttle range), i tried to increase gain almost to 100% both for roll and for pitch, but sill it flips over. Do i miss something?
My first guess would be gyro reversal in one of the axes, causing motion to feed back on itself. What does it do when you hold onto the underside, turn the throttle up to about mid, and wiggle it around?

Why do so many of my comments sound dirty to me when I read them? X-D

Rick NR417
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Last edited by NightRunner417; Nov 24, 2011 at 06:11 PM.
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Old Nov 24, 2011, 06:00 AM
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Joined Sep 2011
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Quote:
Originally Posted by NightRunner417 View Post
My first guess would be gyro reversal in tone of the axes, causing motion to feed back on itself. What does it do when you hold onto the underside, turn the throttle up to about mid, and wiggle it around?

Why do so many of my comments sound dirty to me when I read them? X-D

Rick NR417
Your comments are fine and very helpful. Thank you.

Now, some piece of missing info: i use X4 configuration and when it flips, it always flips towards rear left arm.
When i wiggle it around it acts strange. In yaw axis it fights me back when i try to twist my hand. In roll axis it does not fight when i tilt it but it helps me when i start to move it back towards level position. In pitch it does fight back but strangely, pulling toward one arm (rear left :-)
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Old Nov 24, 2011, 06:15 AM
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Joined Sep 2011
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Ok, i think i know. I tried to play with sicks while holding the quad in my hand, and when i try to roll or pitch it, it pulls with one motor instead of two.
So the obvious answer is that it has +4 firmware, and the board oriented on the frame as X4. Silly me.
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Old Nov 24, 2011, 08:48 AM
Master of Flash
LazyZero's Avatar
Alsdorf/Eifel, Germany
Joined Jun 2005
1,569 Posts
Maybe you have connected the Motors wrong. 4.7 kk and 2.4 XX_KR firmware differe in the wiring.
So it is of interest which firmware you use.

Christian
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