Hall sensor gimbals for the 9xr pro?

Hardware Support for the 9XR Pro
rsilk49
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Re: Hall sensor gimbals for the 9xr pro?

Post by rsilk49 »

bob195558 wrote: Sat Jul 22, 2017 11:45 am I have a 9XR Gimbal and the M9 Gimbal.
Eyeballing the 9XR and M9 Gimbals with Digital Caliper, the dimensions are different between them.
Note: Eyeballing measurements may not be accurate.

M7: 62.0mm X 62.0mm / 48.4mm / 42.9mm X 54.0mm

M9: 62.1mm X 62.1mm / 48.1mm / 54.5mm X 54.5mm

9XR: 56.7mm X 54.6mm / 47.4mm / 47.5mm X 46.0mm
Looks like the overall dimensions of the M7 and M9 are the same. The only minor difference is the location of the mounting holes.
So still not a good choice for a 9XR replacement . . .
S500 + Pixhawk 1 clone + Mauch PM + C&T Telemetry adapter + 9XR-Pro (Taranis gimbals)/XJT/X8R

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Re: Hall sensor gimbals for the 9xr pro?

Post by Ronen »

in the end I got a taranis tx to match the m9 gimbals [emoji23] they are really fantastic
rsilk49
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Re: Hall sensor gimbals for the 9xr pro?

Post by rsilk49 »

That's a cop out 😉
S500 + Pixhawk 1 clone + Mauch PM + C&T Telemetry adapter + 9XR-Pro (Taranis gimbals)/XJT/X8R
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Re: Hall sensor gimbals for the 9xr pro?

Post by Ronen »

hehe you are right but i wanted a taranis and the m9 gave me a reason to buy one[emoji3]
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Re: Hall sensor gimbals for the 9xr pro?

Post by voodoo614 »

M9-R gimbal just came out. I guess it is time to buy a second taranis. :lol:

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Re: Hall sensor gimbals for the 9xr pro?

Post by bob195558 »

More info about the New M9-R High Sensitivity Hall Sensor Frsky Gimbals here: (viewtopic.php?f=95&t=10431).
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Re: Hall sensor gimbals for the 9xr pro?

Post by cubnuts »

Been using the KH 9xRpro 3 axis gimbal in my Futaba 9c. Worked just fine until recently when it quit? Well, "worked fine" meaning it fit in the box great, just like it belonged there and, when in use was a excellent gimbal. But then, quit working on one side of the aileron? Fortunately had a second one and swapped it in. Lasted but a few flights and acted much the same? HK's out of them right now .... any idea if and how you could repair one?

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Re: Hall sensor gimbals for the 9xr pro?

Post by jhsa »

Is that a hall sensor gimbal? If so, measure the voltage your radio is applying to the gimbals..

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Re: Hall sensor gimbals for the 9xr pro?

Post by bob195558 »

Hi cubnuts,
Maybe you could look and see if you could use Taranis Gimbals and upgrade them to 3 axis gimbals,
see here: (https://alofthobbies.com/make-your-own- ... imbal.html).
Taranis Gimbals in 9XR-Pro: (viewtopic.php?f=122&t=8269&hilit=3+axis+gimbals#p107727).

Another suggestion, is to purchase a Taranis-Plus Radio, flash with erSky9x firmware and then upgrade to the Taranis 3 axis gimbal.

Bob B.
Last edited by bob195558 on Sat Aug 26, 2017 3:08 pm, edited 1 time in total.
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Re: Hall sensor gimbals for the 9xr pro?

Post by bob195558 »

jhsa wrote: Tue Aug 22, 2017 5:19 pm Is that a hall sensor gimbal? If so, measure the voltage your radio is applying to the gimbals..
João
Hi cubnuts,
We know that the FrSky Hall Sensor Gimbals max voltage is 3.5v and its working range is 2.5v to 3.5v.
So if your Futaba 9c radio is using a voltage that is not correct for the 3 axis gimbal, then you maybe burning your hall sensor up.

João, what I can find for the 9XR-Pro 3 axis gimbal is that they do have magnetic hall effect sensors.
But I do not know what the Gimbal voltages are for the 9XR-Pro, 9XR and Futaba 9c radio.

Bob B.
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Re: Hall sensor gimbals for the 9xr pro?

Post by jhsa »

He was asking about his Futaba radio. Nothing to do with the PRO radio. Therefore I asked him to measure the voltage on the Futaba's gimbals. I believe the 3 axis gimbal is also 3.3V. If you exceed this voltage the hall sensors might get damaged. I have the feeling that this is what's happening..

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Re: Hall sensor gimbals for the 9xr pro?

Post by bob195558 »

These 3 axis gimbals, cubnuts is using, were made for the 9XR and 9XR-Pro and I do not have these radios,
and so I do not know what the Gimbal pot voltage they (radios) are using and what the Futaba 9c radio is using.

Not sure cubnuts would be able to find magnetic hall effect sensors that could be used to replace the bad hall sensor.

Bob B.
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Re: Hall sensor gimbals for the 9xr pro?

Post by jhsa »

Bob, I DO know the Gimbal voltages on the PRO and the older 9XR.
I DO NOT know what voltages the Futaba radio puts on the Gimbals. That is why I asked.
If you don't know the radios and don't even have one, why are you even mentioning them? We know that those gimbals were made for the 9XR-PRO radio originally. I doubt they were made for the old 9XR, because this one has 5V at the gimbals, and the PRO has only 3.3V.

This is WHY I'm asking the voltage on the Futaba radio. If the voltage is greater than the 3.3V needed by the gimbal, it could explain the thing getting broken.

I know that we all like to help people, but we must minimally know what we are talking about :)
Suggesting that he buy Taranis gimbals, or even a Taranis radio, won't help him fixing his gimbal. He wants a 3 axis gimbal, I don't think the taranis has any? ;)

João

EDIT: I have just did some research and they actually did advertise the gimbal for the old 9XR radio also. I find this very strange as the hall effect sensors ( at least the ones that I know) don't like working on both 3.3V and 5V voltages.

I really suspect that some too high voltage on the gimbals could have killed both units that he installed on his radio..
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Re: Hall sensor gimbals for the 9xr pro?

Post by bob195558 »

:D Thank you !, João ! for providing info that 9XR (an old upgraded 9x board) Gimbal voltage (5v)
and 9XR-Pro (a version of the Sky board) Gimbal voltage (3.3v).
The Hobby King link is gone with its technical data about these 3 axis gimbals, I think this info you have provided is most helpful.
I am very Very Happy ! :D ;)
jhsa wrote: Wed Aug 23, 2017 11:07 amEDIT: I have just did some research and they actually did advertise the gimbal for the old 9XR radio also.
I find this very strange as the hall effect sensors ( at least the ones that I know) don't like working on both 3.3V and 5V voltages.

I really suspect that some too high voltage on the gimbals could have killed both units that he installed on his radio..
Me also !
It dose seem like something is not correct that these 3 axis gimbals are listed for both radios, 9XR (5v) and 9XR-pro (3.3v).

Bob B.
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Re: Hall sensor gimbals for the 9xr pro?

Post by jhsa »

Yes, but that doesn't matter for this problem.. Let's wait for the Futaba measurements.
I can't find the gimbal specs anywhere..

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Re: Hall sensor gimbals for the 9xr pro?

Post by cubnuts »

Thanks thanks thanks, I have a source for the 9c voltages and will find out, may take a day or 2 though.
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Re: Hall sensor gimbals for the 9xr pro?

Post by cubnuts »

So, in answer to the voltage of the 9c, I sent a note to Tony at Radio South and asked? He said, "They are 5v. That is normally what is used on radios that have 8-cell nicads operating on 9.6v. Newer radios use 6v batteries, so the voltage out to the pots is 3v."

Hopefully with this added info, we'll know whether the 9c "overloaded" the hall sensor?

Cubnuts
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Re: Hall sensor gimbals for the 9xr pro?

Post by bob195558 »

Hi cubnuts,
I have found some info about your 10 year old Futaba 9C radio which your problem may be in your 10 year old Futaba 9C radio.
See here this youtube video, "Futaba 9C fault diagnosis": (https://www.youtube.com/watch?v=0CQTtRQ5M_s).

Also here is some more info about voltages with some of the
other Hall Effect Gimbals: (viewtopic.php?f=122&t=9683&p=123444&hil ... ge#p123444).

Other info, Old HK video of "Quanum 9XR-pro 3-Axis Gimbal": (viewtopic.php?f=122&t=8269&hilit=3+axis+gimbals).

Bob B.
Last edited by bob195558 on Fri Aug 25, 2017 10:55 am, edited 2 times in total.
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Re: Hall sensor gimbals for the 9xr pro?

Post by jhsa »

Well, I don't know the Futaba 9C radio. But it looks like Bruce found something there. It could very well be the radio and not the gimbal.
You would have to measure the voltages on your gimbals, just like Bruce did to try to find the problem.

João

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Re: Hall sensor gimbals for the 9xr pro?

Post by cubnuts »

Thank you very much! Most interesting how "trouble shooting goes with r/c and other computerized things?" (I use 2 monitors with my Surface computer thru a docking station, the other day both monitors quit working? Did both monitors break at exactly the same moment or was it the dock? Figured it was the dock so got a new one for $200 but they still didn't work. Then realized I could plug the monitors directly into my Surface only to discover that neither worked after bypassing the dock? That was good because the new dock cost $200 so I took it back. Then called MS to track down the trouble and discovered they'd released an update few days before. Could it be software not hardware? After checking the vid drivers with no resolution, decoded it might be the system so, got Windows to reinstall an earlier version and the monitors came back! Who's to know?)

So, as to my Futaba, I'd have never thought it was the radio itself? That radio was NIB a year back .... but could certainly be the trouble. Rather than sort it out myself, will send it to Radio South and see what Tony has to say?

Really appreciate you input and will post the results when I figure out what's happened.

Cubnuts
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Re: Hall sensor gimbals for the 9xr pro?

Post by mozareh »

Hi dears
I have recently bought a hall effect sensor gimbal for using in my radio control
I am so happy with the features it has but a thing that make me worry about using it is that magnetic fields cause variation in the gimbal output and so it may cause crash if the radio control enter a magnetic field ( coming close to a electricity generator while piloting your vehicle).

so I want to know if any of friends have had experiences similar to this story.

any help would be appreciated
thank you
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Re: Hall sensor gimbals for the 9xr pro?

Post by bob195558 »

I have a pair of M9 Gimbals in my Taranis and they are a big improvement.
Radio with M9 Gimbals (or any RC radio) near a powerful magnetic field,
I would suggest not to do that in the first place.
Where are planing to fly ? :?: Power Stations or have a magnet near your M9 Gimbals ? :?:
Maybe could be tested with a magnet around your M9 Gimbals ?
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Re: Hall sensor gimbals for the 9xr pro?

Post by jhsa »

Ok, I just did a quick test. I have a 9x radio that had the pots replaced with hall sensors and magnets.
I have just moved some other magnet around the radio. The magnet got attracted to the gimbal's magnets and it did cause some movement on the channels. The magnet needed to be very close to the radio case, or right on top of the gimbal..
This is not a commercial setup, it is DIY, so I don't know how the frsky gimbals will react. My guess is that if you place a powerful magnet right on top, or on the side of the radio, it might cause problems.. But are you going to fly with a powerful magnet on your hands?? :)

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Hall sensor gimbals for the 9xr pro?

Post by Daedalus66 »

I just did a test using magnets on my Taranis QX7 with Hall-effect gimbals. Viewing the numeric channel display, I saw no effect whatsoever when the magnet was more than 10cm away from the sensor location. The magnet needed to be within about 3-4cm of the face or back of the transmitter and directly over the sensor for there to be an effect that showed up even slightly in the graphic display.
The only warning I can see being needed in connection with the use of Hall-effect sticks is not to attach magnets directly to the transmitter in the vicinity of the gimbals.
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Re: Hall sensor gimbals for the 9xr pro?

Post by jhsa »

On mine, I had to place the magnets in a way that they stayed held against the case by the pull of the gimbal's magnets.
I can see that my setup is not bad for a DIY then ;) :)

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Re: Hall sensor gimbals for the 9xr pro?

Post by mozareh »

jhsa wrote: Thu Nov 30, 2017 12:39 am Ok, I just did a quick test. I have a 9x radio that had the pots replaced with hall sensors and magnets.
I have just moved some other magnet around the radio. The magnet got attracted to the gimbal's magnets and it did cause some movement on the channels. The magnet needed to be very close to the radio case, or right on top of the gimbal..
This is not a commercial setup, it is DIY, so I don't know how the frsky gimbals will react. My guess is that if you place a powerful magnet right on top, or on the side of the radio, it might cause problems.. But are you going to fly with a powerful magnet on your hands?? :)

João
Hello again
actually i need to fly with the copter in different places
it can be inside a boat on the sea or close to a powerplant in a factory or ...
but the thing that is my copter is very expensive and I would not be going to expose it at risk just because of having a better gimbal on my radio
I also tested the gimbal and it could be seen to have movement near 20% (reletive to full chanel movement) by getting close to a powerful magnet

how ever I wanted to know about the experience of you darlines and still am going to find a solution for that.

thank you so much for the reply
hope to find a solution and let each other know
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Re: Hall sensor gimbals for the 9xr pro?

Post by bob195558 »

Hi mozareh,
My thinking is you would have most concern with losing our RF connection
between your transmitter module and it's receiver.
What are you using for RF transmitter module and receiver system ? :?:

Seems you would lose RF connection far sooner then to have a magnet close to your M9 Gimbals
that may cause a problem.

Bob B.
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Re: Hall sensor gimbals for the 9xr pro?

Post by Daedalus66 »

How close is “close to a powerful magnet”? How powerful is the magnet? Unless you are considering flying with the transmitter in the same room as a particle accelerator or nuclear magnetic resonance unit, I can’t see a problem.
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Re: Hall sensor gimbals for the 9xr pro?

Post by Zincyellowmach1 »

M9 gimbal are EXTREMELY hard to put in, pr-10 gimbal reduces stick movement in the corners due to the faceplate (fixable). Considering trying these,

www.digikey.com/product-detail/en/paral ... ND/4700913

I wish the datasheet had dimensions. Looks very promising though. Anybody down to try it? I'm done buying and trying gimbals for a little bit lol.
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Re: Hall sensor gimbals for the 9xr pro?

Post by Sterling101 »

Zincyellowmach1 wrote: Wed Jan 24, 2018 2:50 am M9 gimbal are EXTREMELY hard to put in, pr-10 gimbal reduces stick movement in the corners due to the faceplate (fixable). Considering trying these,

www.digikey.com/product-detail/en/paral ... ND/4700913

I wish the datasheet had dimensions. Looks very promising though. Anybody down to try it? I'm done buying and trying gimbals for a little bit lol.
Parallax have some details on their site - https://www.parallax.com/product/27808

Also have some mount information which looks to be in inches but should be easy enough to convert but I don't have the exact dimensions of the stock gimbal to compare.
Attachments
27808-Gimbal-Joystick-Mount-v1.0.zip
(21.06 KiB) Downloaded 247 times
Leigh

Current Kit:-
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Turnigy 9XR-Pro with internal FrSky DHT Module - used on the simulator.
Retired radios:-
Turnigy i10 with FlySky receivers.
Turnigy I6 - My first Tx now just used on Quads.

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