Free Flight FF Auto Balance Controller with 3D Acceleration Sensor For QuadCopter - Page 64 - RC Groups
Thread Tools
Jan 22, 2012, 04:44 PM
Registered User
Quote:
Originally Posted by eaton
I have no throttle problem with v1.24.

FF outputs 1ms (not armed), 1.2ms (armed with minimun throttle) and 1.8ms (armed with maximum throttle).

Maybe you need to calibrate "RC cal" with PC
thanks
i did calibrate via RC cal several times.
you measured the 1.8ms at the motor ouput signal of the board?
Sign up now
to remove ads between posts
Jan 22, 2012, 05:38 PM
Registered User
Quote:
Originally Posted by jaccies
thanks
i did calibrate via RC cal several times.
you measured the 1.8ms at the motor ouput signal of the board?
Yes, I measured it at the board with PC interface program
Jan 22, 2012, 06:02 PM
Registered User
Quote:
Originally Posted by eaton
Yes, I measured it at the board with PC interface program
When I checked V1.22, the motor output pulse never goes above ~1.65mS (HappySundays confirmed this).

Using the pc software to activate the motors, it did achieve a higher pulse of ~1.8mS IIRC.
Jan 22, 2012, 06:08 PM
Registered User
Quote:
Originally Posted by Mike Barton
When I checked V1.22, the motor output pulse never goes above ~1.65mS (HappySundays confirmed this).

Using the pc software to activate the motors, it did achieve a higher pulse of ~1.8mS IIRC.
Mike
so you have still the same problem as i have , barely lift at full throttle ?
Jan 22, 2012, 06:49 PM
Registered User
Quote:
Originally Posted by jaccies
Mike
so you have still the same problem as i have , barely lift at full throttle ?
Mine does lift off ok, but as I have mentioned earlier on this thread, the range of the signal pulses from the FF board is strangely curtailed.
It was quite noticable to me that I never got anywhere near full throttle, compared to say when flying a KK board (this was on the same quad).

This means that it is best if you can re-calibrate your ESC throttle range to match this controller.

Unfortunately, you cannot use the FF software to do this
Jan 23, 2012, 01:26 AM
One with the machine
X--ALIEN--X's Avatar
Hello everyone, I have been using the kk board with success and now I have one of these ff board on the way, so basically I am wondering, do you guys love it?
Any tips to avoid headaches?
Jan 23, 2012, 02:35 AM
OpenAeroVTOL developer
HappySundays's Avatar
Well today I took my FF quad, and two NeXtcopter equipped copters (a quad and a hexacopter) to the field for some open field flying. It was quite breezy but that made it much easier to compare.
While I loved the FF when hovering about at home, with its low rates and wafty nature, it totally sucked at the field! It was very difficult to control in the breeze partly, I'm sure, due to the very low gyro gain it seems to have.
I'll fire up that PID tuning program and see if I can up the rates while I'm at it.

Seriously not trying to blow my own horn but the NeXtcopters were all over it for stability, even with autolevel switched *off*
Jan 23, 2012, 02:46 AM
g0t rabb1t?
ABLomas's Avatar
Quote:
Originally Posted by Mike Barton
This means that it is best if you can re-calibrate your ESC throttle range to match this controller.
Heh, and my controller acts even worse - it reverses throttle input. Combined together with weird throttle range going from controller:
  • calibrated each ESC with TX
  • reversed throttle channel, calibrated on PC
  • controller arms, but throttle does nothing up to ~30%, then suddenly gives ~80% throttle
So, no correct throttle management at all. I haven't lifted my quad at all, i think i just buy another controller - too many glitches to call it "PnP" ;-)
Jan 23, 2012, 03:16 AM
manuLRK
Quote:
Originally Posted by HappySundays
Seriously not trying to blow my own horn but the NeXtcopters were all over it for stability, even with autolevel switched *off*
Haaa, simplicity is what works best usually.

manu
Jan 23, 2012, 04:47 AM
Registered User
Quote:
Originally Posted by HappySundays
Seriously not trying to blow my own horn but the NeXtcopters were all over it for stability, even with autolevel switched *off*
up till now FF is unusable for me due to bad throtlle response, while i had no probs with KK+ board throttle
well good to hear, dan's mems module is ordered so within 2 months we can fly nextcopter right HS?
Jan 23, 2012, 04:59 AM
Registered User
Quote:
Originally Posted by jaccies
up till now FF is unusable for me due to bad throtlle response, while i had no probs with KK+ board throttle
well good to hear, dan's mems module is ordered so within 2 months we can fly nextcopter right HS?
jaccies

I'm currently in the process of knocking up a simple program to allow you (& others) to use a KK board to re-calibrate ESC throttle range to something better suited for FF (and other) boards.
Jan 23, 2012, 05:15 AM
OpenAeroVTOL developer
HappySundays's Avatar
Quote:
Originally Posted by Mike Barton
jaccies
I'm currently in the process of knocking up a simple program to allow you (& others) to use a KK board to re-calibrate ESC throttle range to something better suited for FF (and other) boards.
Cool. Much appreciated. Mine just about leaps off the ground at a nudge over idle lol. Just reprogrammed mine via the PID utility. Hope to try it tomorrow - weather permitting.
Jan 23, 2012, 05:22 AM
Registered User
Quote:
Originally Posted by HappySundays
Cool. Much appreciated. Mine just about leaps off the ground at a nudge over idle lol. Just reprogrammed mine via the PID utility. Hope to try it tomorrow - weather permitting.
There's a definite 'step'.
When dis-armed or zero throttle, it idles @900uS, but then when you increase it a small amount, it suddenly jumps to 1200uS which can take you by suprise!

The KK board is an easier option for some than flashing Simons ESC firmware.
Jan 23, 2012, 05:38 AM
Registered MisUser
whiteturbo's Avatar
Quote:
Originally Posted by Mike Barton
jaccies

I'm currently in the process of knocking up a simple program to allow you (& others) to use a KK board to re-calibrate ESC throttle range to something better suited for FF (and other) boards.

Hey Mike that would be great as most of us have KK's lying about
Jan 23, 2012, 05:56 AM
Registered User
Quote:
Originally Posted by Mike Barton
jaccies

I'm currently in the process of knocking up a simple program to allow you (& others) to use a KK board to re-calibrate ESC throttle range to something better suited for FF (and other) boards.
but will that solve my problem with FF board throttle , i did manual calibrated all ESC with my TX and RX......no result


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Sold Complete MultiWii Quadcopter Flight Controller madushan2008 Aircraft - Electric - Multirotor (FS/W) 3 Aug 11, 2011 09:25 AM
Sold FY90Q Flight Controller for Quadcopter - $70 shipped jpsabo Aircraft - Electric - Multirotor (FS/W) 1 Jul 29, 2011 11:21 AM
For Sale Complete MultiWii Quadcopter Flight Controller Kit madushan2008 Aircraft - Electric - Multirotor (FS/W) 7 Jul 26, 2011 09:58 AM
Sold Multi Wii flight controller with auto level ver 1.7 tc3wins Aircraft - Electric - Multirotor (FS/W) 1 May 08, 2011 02:02 AM
Video Trex SE...3d flight with auto Nick Maxwell Electric Heli Talk 10 Dec 18, 2006 10:23 PM