Originally Posted by healthyfatboy

Do you have voltage on the 5V rail for M2-M8 on the board? If you disabled the BEC on the 2nd and 3rd motor, then your servo won't get any voltage as the BEC from the 1st motor is separate from the rest of the connections.

Thank you !!!
I think you're right ...
I disabled the other two controllers BEC.
I'll check and I'll update the thread

Originally Posted by eitan

What could be the reason that the servo does not respond at all?
I use this servo: http://www.hobbyking.com/hobbyking/s...idProduct=8761.
The servo worked fine with the HobbyKing Multi-Rotor Control Board V2.1.
Thank you

Besides the BEC being disabled on #2-8, make sure ch4 is set to servo and not esc.
H

Thank you all, The problem was solved with the connection to the second BEC.

I have a Hitec HS-5085MG digital servo coming so I'll give that a try and see how well it works for the yaw.

So far it seems that the "jitter" and other problems are user errors.
It can happen. There are alot of things to remember and configure.
Is the board , or programming at fault?
It hasn't been shown to be.

Originally Posted by Phalanx-0

So far it seems that the "jitter" and other problems are user errors.
It can happen. There are alot of things to remember and configure.
Is the board , or programming at fault?
It hasn't been shown to be.

Nobody I've heard of has shelled out 50$+ yet for a quality digital micro servo. I've read only one case where a budget digital worked. Kk himself said there is an issue where sub quality servos may not work. So yes, its a problem with the board.

Originally Posted by shelterock

So I installed a solar digital servo for $12 from hobbypartz. D657. 25g with 3.0kg 0.1 seconds to 60'. No wobble. Set servo on high. Sweet. $12 fix and tri is good!! H

hrm...wasn't even a $50 servo either.
I guess someone's not paying attention in their own thread.

Originally Posted by Phalanx-0

hrm...wasn't even a $50 servo either.
I guess someone's not paying attention in their own thread.

Originally Posted by rcbif

Nobody I've heard of has shelled out 50$+ yet for a quality digital micro servo. I've read only one case where a budget digital worked. Kk himself said there is an issue where sub quality servos may not work. So yes, its a problem with the board.

Originally Posted by Phalanx-0

hrm...wasn't even a $50 servo either.
I guess someone's not paying attention in their own thread.

If you're not trying to sort this problem out 1st hand yourself then you clearly have no experience or constructive advice to pass on.
Out.

I bought a decent, quality servo so once it gets in, I can test it out. Patience grasshopper!
Also, why does it have to be $50+?

Originally Posted by healthyfatboy

I bought a decent, quality servo so once it gets in, I can test it out. Patience grasshopper!
Also, why does it have to be $50+?

It dosent, but most of the brand name fastest digital servos are around that range which is what is supposed to work with this board in it's current config.

From the kk2 thread:

Originally Posted by knutek

Hi and thank you for a great board.
Does this mean you have a FW update ready soon?

Originally Posted by kapteinkuk

No, it is lot of stuff left to do.

Looks like there will be no firmware solution for the tail servo problem anytime soon

So an consensus on which servo actually works here people?

I'll try out the Hitec HS-5085 next week when it comes in. I'll try to get a video with the HS-85MG and the HS-5085MG to show a difference.

What board isolation solutions have been tried, and failed or succeeded?