G940 bugs sorted out???

[ACE-OF-ACES]

Originally Posted by Artist

IIRC *all* his board BU0836, A , and X support the A1302KUA-T Hall sensors directly. I've just ordered some. We'll see.

I thought I read something on it too.. but.. I seem to recall HALL sensors putting out a pulse like an encoder.. Thus you need something to read/count/monitor the pulses.. Where as BU0836 boards only have analog inputs.. I had a few email exchanges with Leo and actually got the data sheet on the PIC controller he uses on his boards.. I can not remember if Leo added the filtering or if it was a standard feature on the PIC controller he uses.. I got all my notes on it at work and I am at home today so if needed I could look it up on Monday

Saw that his site was down..

http://www.leobodnar.com/

Hope he didn't go out of business!! In that we had planes on building about 25 more of the force sensing sticks

EDIT I looked up that A1302KUA-T.. it is a IC package that has an analog out so yeah that would work as an input to the BU0836.. But I think you will still need to read/count/monitor the pulses? Do you know if this is that the HALL sensor used in the G940?

[Chivas]

I actually thought that I had finally found a joystick to replace my MSFF2, after the new drivers, and firmware fixed the reversal bug. After flying with the G940 for a month or so I got tired of trying to fine tune the centering tension and forcefeedback, and reinstalled my MSFF2 joystick, Cougar Throttle, and Saitek Pro Rudders. I was immediately surprised how much smoother and more accurate my old system is than the G940. The G940 electrical gears are really course, and the software to control the center tension and forcefeedback are also alittle flaky.

I'd try the new hydraulic joystick that is being developed now, but it looks like crap.

[Artist]

ACE-OF-ACES,

Originally Posted by ACE-OF-ACES

I can not remember if Leo added the filtering or if it was a standard feature on the PIC controller he uses.. I got all my notes on it at work and I am at home today so if needed I could look it up on Monday

That would be nice...

Originally Posted by ACE-OF-ACES

EDIT I looked up that A1302KUA-T.. it is a IC package that has an analog out so yeah that would work as an input to the BU0836.. But I think you will still need to read/count/monitor the pulses? Do you know if this is that the HALL sensor used in the G940?

About the G940 I do not know...

I checked Leo's site again (it's still disabled) and found a comment of him in some other forum (mentioned in an earlier poste here): His employee left him, he's on a project, so he won't take orders he's not able to process speedely enough...

Anyway: In *his* forum he once gave instructions for the A1302KUA-T:

The connections are:

BU0836 GND === Hall sensor "-"
BU0836 +5V === Hall sensor "+"
BU0836 INPUT === Hall sensor "O" (output)

Just make sure you follow Hall sensor pinout carefully. It's a semiconductor device and could be damaged if not connected as designed.

and the two illustrating pictures from that post

Artist

[ACE-OF-ACES]

Originally Posted by Artist

ACE-OF-ACES,
Anyway: In *his* forum he once gave instructions for the A1302KUA-T:

and the two illustrating pictures from that post

Interesting..

Now it has been.. what.. 8 years since I used a hall sensor on one of our motor drives at TRW (now Northrop) so I am going off my already bad memory.. But I seem to recall the hall sensor not putting out a linear voltage range.. it put out a pulse each time the hall sensor passed by the magnet on the drive shaft, which in turn caused the output of the hall sensor to pulse.. But.. if the shaft did not completely turn (360) and the hall hall sensor remained in the magnetic field of the magnet at all times.. say the shaft only moved a few degrees +/- than I guess you would get a linear voltage output of the hall sensor.. that must be how they are doing it.. Which in turn would remove the need to monitor/count the 'pulsees' each time the shaft turned 360

Make since now in that the XY shafts of the joystick do not turn 360 degrees but just a few degrees

If that is the case than we could totally dump the Logi junk electronics and go full BU0836!!

WOOT!

[Artist]

Originally Posted by ACE-OF-ACES

that the XY shafts of the joystick do not turn 360 degrees but just a few degrees

Just tested it with a BI0836X, a A1302KUA-T and two magnets: Works beautifully from 0 to 100% and 50% when the magnets are both out of reach.

Originally Posted by ACE-OF-ACES

If that is the case than we could totally dump the Logi junk electronics and go full BU0836!!
WOOT!

Not really : I want to keep Force Feedback, so stick x and y must be fed via Logitech electronics... Which brings me to another issue concerning the combination of Il-2, G940 and (possibly several) BU0836... I'll soon open another thread because I need advice, help, ideas here...

Originally Posted by mazex

OK, It may be that haven't used it that much then? Since I bought it 1.5 years ago I guess I don't have more than 20-30 flight hours on it... Kids, wife, work and those darn friends stop my rightfully deserved sim time all the time

I agree. That must be it. The Reversal Bug (on stick y and x) prevented any serious formation flying and aiming. That is now fixed by Logitech. The Reversal Bug in the Rudder (3-4%) still makes formation flying and aiming difficult. The Reversal Bug in the throttle and proppitch (throttle, R1 or R2, 3%) makes formation flying difficult. My spikes started appearing after 40-60 flight hours (on both sets - returned the first, modded the second)...

With my modding I am now quite happy.

Artist

[Arrow]

Originally Posted by Artist

I agree. That must be it. The Reversal Bug (on stick y and x) prevented any serious formation flying and aiming. That is now fixed by Logitech. The Reversal Bug in the Rudder (3-4%) still makes formation flying and aiming difficult. The Reversal Bug in the throttle and proppitch (throttle, R1 or R2, 3%) makes formation flying difficult. My spikes started appearing after 40-60 flight hours (on both sets - returned the first, modded the second)...

With my modding I am now quite happy.

Artist

Real aircraft controls aren't that precise at all - you would be surprised how many reversal bugs are on real aircraft. A good pilot can adjust his flying accordingly and fly with anything.

[Artist]

Originally Posted by Arrow

Real aircraft controls aren't that precise at all - you would be surprised how many reversal bugs are on real aircraft. A good pilot can adjust his flying accordingly and fly with anything.

You might have a point there ... I have no idea. I am sim only.

But (a small, humble 'but'): Imprecision of controls is one thing (i.e. slack in cables, elasticity, etc.) and a software in a 'fly by wire' system, which wrongly interpretes what you want (i.e. trimming elevator "..., 51%, 52%, 53% - oh! too much - and trying to go back to 52% gives you 49% and trying to compensate that gives you 53% again, and so on, back and forth) is something different.

I just hated that. Felt like an idiot trying to keep alongside...

Artist

[MasterTec]

I'm not quite sure that some of you guys understand when the reversal bug really is.

These two videos demonstrate it. The first one is recent and shows the reversal bug on the R2 trim axis of the throttle. The second video is old before the 12/2010 firmware update:

http://www.youtube.com/watch?v=SZlUWwOJUN0

http://www.youtube.com/watch?v=xiwyBM7PXEo

[Yammo]

Originally Posted by Arrow

Real aircraft controls aren't that precise at all - you would be surprised how many reversal bugs are on real aircraft. A good pilot can adjust his flying accordingly and fly with anything.

Moderators... Troll alert!


Arrow...
What does real life controls have to do with a piece of equipment for a computer?!
Would you accept the mouse jumping 3-4 cm on your screen whenever you reversed direction?