XK K110 (S-FHSS) build for Devo 7E and Devo 10

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17 Mar 2016 05:59 #44694 by victzh
It's a preliminary version of S-FHSS protocol reverse engineered from XK K110 and Orange SF700S.

Enclosed is also model file for Devo 7E for K110. Due to limits in switches it lacks dual rates, more than one idle-up, and switch between 6-axis and 3D modes - it's 6-axis only. I did not try it alive, so be careful!

Enjoy!
Attachments:

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17 Mar 2016 06:11 #44696 by SeByDocKy
Replied by SeByDocKy on topic XK K110 (S-FHSS) build for Devo 7E and Devo 10

victzh wrote: It's a preliminary version of S-FHSS protocol reverse engineered from XK K110 and Orange SF700S.

Enclosed is also model file for Devo 7E for K110. Due to limits in switches it lacks dual rates, more than one idle-up, and switch between 6-axis and 3D modes - it's 6-axis only. I did not try it alive, so be careful!

Enjoy!



Whaooooohhhhahhoooo :) I hope to try asap .... I can try also on my XK X350

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17 Mar 2016 06:25 #44697 by dc59
What a good news it is? :woohoo: :woohoo: :woohoo:
I will try it after work.
Thanks for your great job victzh!

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17 Mar 2016 06:56 #44698 by Babay
Yees! Thanks Victzh! I did a little test XK K120 in the room - work fine with 3D and 6G mode!

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17 Mar 2016 07:36 #44700 by Fernando
Replied by Fernando on topic XK K110 (S-FHSS) build for Devo 7E and Devo 10
Wow, what really amazing job guys! I've been following your posts and waiting for news like this.
I have a Devo8 so biting my nails for a build and XK-K120 model. I know that is something preliminary and probably needs much more research and development, cheer up!
Just a question, maybe I miss something, what module is needed inside the Devo to bind to our little birds? I have a NRF24L01.

Thanks!

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17 Mar 2016 07:43 #44701 by SeByDocKy
Replied by SeByDocKy on topic XK K110 (S-FHSS) build for Devo 7E and Devo 10

Fernando wrote: Wow, what really amazing job guys! I've been following your posts and waiting for news like this.
I have a Devo8 so biting my nails for a build and XK-K120 model. I know that is something preliminary and probably needs much more research and development, cheer up!
Just a question, maybe I miss something, what module is needed inside the Devo to bind to our little birds? I have a NRF24L01.

Thanks!



You need the CC2500 ...

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17 Mar 2016 07:46 #44702 by Fernando
Replied by Fernando on topic XK K110 (S-FHSS) build for Devo 7E and Devo 10

SeByDocKy wrote: [You need the CC2500 ...


This one?
www.banggood.com/CC2500-PA-LNA-Romote-Wi...F24L01-p-922595.html

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17 Mar 2016 08:02 #44703 by SeByDocKy
Replied by SeByDocKy on topic XK K110 (S-FHSS) build for Devo 7E and Devo 10

Fernando wrote:

SeByDocKy wrote: [You need the CC2500 ...


This one?
www.banggood.com/CC2500-PA-LNA-Romote-Wi...F24L01-p-922595.html


yes ... you will need also the iPX-RG178 coax cable ...

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17 Mar 2016 10:44 #44705 by Fernando
Replied by Fernando on topic XK K110 (S-FHSS) build for Devo 7E and Devo 10
Thanks, I think I already have one cable... otherwise I think is possible to buy this one for instance: www.banggood.com/50cm-U_FLIPX-to-RP-SMA-...-Cable-p-924946.html , cut the SMA connector and leave a exact size of the inner cable core without the plastic cover to use it as antenna, right?, please correct me if I am wrong.

Good news, I see that this nightly build is already available for all Devos
deviationtx.com/downloads-new/category/3...s-nightly-2016-03-14

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17 Mar 2016 13:04 #44709 by Babay
I tested XK K110. Everything works perfectly! Accelerometer calibration also works. Thank you Victzh!

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17 Mar 2016 13:16 #44710 by victzh
Fernando, it's not in the nightlies yet. I can build Devo 8 if you want.

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17 Mar 2016 13:28 #44711 by Fernando
Replied by Fernando on topic XK K110 (S-FHSS) build for Devo 7E and Devo 10
Is not this one?
deviation-devo8-v4.0.1-92ad664.zip

It matches the name of this file with the builds you posted on your first message. That's why I thought it was already published.
If it is not the correct one, please build it for me :), I appreciate. I am not in a hurry because I have to order the CC2500 and China shipping can take a month...
I find it incredible you guys can make this kind of things. Congrats!

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17 Mar 2016 15:10 #44718 by dc59
I tried my K120 with indoor fly,it's perfect. Orange SF700S receiver also works ok for all 7 channels,thanks victzh! Awesome!

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17 Mar 2016 15:41 #44721 by victzh
I hope by the time you get your module it would be propagated to the main build.

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17 Mar 2016 18:10 #44723 by SeByDocKy
Replied by SeByDocKy on topic XK K110 (S-FHSS) build for Devo 7E and Devo 10
Ok ... I tried with my XK X350 ... :( no binding .... :(

I will check witn my K110

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17 Mar 2016 18:16 #44724 by victzh
Try to change the fixed id, I found that for some ids it works better and holds connection more reliably. As your actual id is generated through randmization of your MCU signature it can be less fortunate. Also, for some id it takes more attempts to bind than for others. I still can't figure out the system. I use high complexity id - no more than 6 zeros and ones in binary representation, but it's not enough. And it's only true about Orange's received, K110 is ignorant - it digests any id without preferences.

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17 Mar 2016 18:25 #44725 by SeByDocKy
Replied by SeByDocKy on topic XK K110 (S-FHSS) build for Devo 7E and Devo 10

victzh wrote: Try to change the fixed id, I found that for some ids it works better and holds connection more reliably. As your actual id is generated through randmization of your MCU signature it can be less fortunate. Also, for some id it takes more attempts to bind than for others. I still can't figure out the system. I use high complexity id - no more than 6 zeros and ones in binary representation, but it's not enough. And it's only true about Orange's received, K110 is ignorant - it digests any id without preferences.


Ok ... I was able to bind the K110 via the RX's bind button....

Surpringly, seems to not have any bind button the for X350

File Attachment:


I will try with some other ID ...

PS. It's normal than no action when we press the bind button associated with the S-FHSS protocol ?

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17 Mar 2016 18:29 #44727 by SeByDocKy
Replied by SeByDocKy on topic XK K110 (S-FHSS) build for Devo 7E and Devo 10
This free room one the right of the FC is not for a potential bind button for example ?

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17 Mar 2016 18:29 #44728 by victzh
That's nasty of them! They have a place for bind button - the one on the right marked with small x, but no button mounted!

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17 Mar 2016 18:31 #44730 by victzh
Yes, I suspect it is the place for the button. BTW, it's interesting they were not able to decide how to issue this - with S-FHSS or without, and there is a place for BK2425 module overlapping the CC2500 on board!

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