Devo 12s 3in1 / 4in1 RF module neat installation.

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18 Apr 2016 01:08 #46728 by victzh
Replied by victzh on topic 3in1 / 4in1 RF module
PhractuedBlue, if you need one I have extra. I ordered couple from taobao and it took eternity to come here. So if you don't want to wait that long I have one. It is defective and while nRF issue may be fixed by removal of strong pull up on TXEN, the A7105 just not routed to TXEN at all.

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18 Apr 2016 09:53 #46735 by valley_nomad
Replied by valley_nomad on topic 3in1 / 4in1 RF module
According to the latest news from BG, 3-in-1 will be delayed further :(

"....,I have checked that the item will restock around 2016-04-30,would you mind waiting for it or cancelling it?..."

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18 Apr 2016 13:00 #46737 by victzh
Replied by victzh on topic 3in1 / 4in1 RF module
You probably want a module with fixed NRF24L01 issue, right? :-)

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18 Apr 2016 18:15 #46750 by valley_nomad
Replied by valley_nomad on topic 3in1 / 4in1 RF module

victzh wrote: You probably want a module with fixed NRF24L01 issue, right? :-)


I thought that 3-in-1 was OK without any issue while 4-in-1 got several :unsure:

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18 Apr 2016 19:12 #46751 by victzh
Replied by victzh on topic 3in1 / 4in1 RF module
No, the guy who made them explicitly said that he tested them only with A7105 and nRF24L01 unidirectional protocols. CYRF6936 (for 4in1) and CC2500 he tested for both directions. And I think he got lucky with nRF24L01 - his schematics is almost correct so even for protocols that require bidirectional communication it work on short distance. As there are no telemetry for nRF based protocols, he did not tested this.

He promised to test both TX and RX for every chip in the second version and ordered equipment for this (I don't know what exactly). So it all delays the shipment of correct working modules, but if we finally have them they would be very useful addition.

Disclaimer: I'm not connected to the production of these modules in any way, I just wrote to this guy and he answers.

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18 Apr 2016 19:57 #46753 by valley_nomad
Replied by valley_nomad on topic 3in1 / 4in1 RF module

victzh wrote: No, the guy who made them explicitly said that he tested them only with A7105 and nRF24L01 unidirectional protocols. CYRF6936 (for 4in1) and CC2500 he tested for both directions. And I think he got lucky with nRF24L01 - his schematics is almost correct so even for protocols that require bidirectional communication it work on short distance. As there are no telemetry for nRF based protocols, he did not tested this.....


Thanks for the clarification. I noticed that he mentioned the shorter distance with several protocols. And I felt puzzled why he blamed the manufacturers for setting the limitation ;-)

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18 Apr 2016 21:08 #46758 by victzh
Replied by victzh on topic 3in1 / 4in1 RF module
Whom do you mean exactly? The guy who made the modules? I have not seen this comment about manufacturers limiting anything.

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18 Apr 2016 22:31 #46762 by valley_nomad
Replied by valley_nomad on topic 3in1 / 4in1 RF module

victzh wrote: Whom do you mean exactly? The guy who made the modules? I have not seen this comment about manufacturers limiting anything.


On that 3-in-1 Taobao page, in Chinese.

"....NRF24L01( 伟力V977电直,KN协议,地面距离200M以上,驰远HCP100S电直,HISKY协议,地面距离70米左右,该协议是厂家提供给DEVIATION项目,厂家似乎做了限制,测试过其他三四种模块,距离也只有30到70米)..."

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18 Apr 2016 22:32 #46763 by victzh
Replied by victzh on topic 3in1 / 4in1 RF module
Sorry, I don't read Chinese, only Russian :-) Thanks!

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18 Apr 2016 22:47 - 18 Apr 2016 22:48 #46765 by RedSleds
Replied by RedSleds on topic 3in1 / 4in1 RF module

victzh wrote: Sorry, I don't read Chinese, only Russian :-) Thanks!


NRF24L01 (Weili V977 electric straight, KN agreement, 200M distance above the ground, Chi Yuan HCP100S electricity straight, HISKY agreement, about 70 meters from the ground, the protocol is provided by the manufacturer to DEVIATION project, the manufacturers seem to have been restricted, tested other thirty-four kinds of modules, only 30-70 meters distance)

DEVO 10 - Multi-module with nRF24L01 +PA +LNA, A7105 +PA, & CC2500 +PA +LNA transceivers.
Nightly Build: v4.0.1-548bbf5 (6/9/2015)
Last edit: 18 Apr 2016 22:48 by RedSleds.

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18 Apr 2016 23:34 - 18 Apr 2016 23:34 #46767 by valley_nomad
Replied by valley_nomad on topic 3in1 / 4in1 RF module

RedSleds wrote:

victzh wrote: Sorry, I don't read Chinese, only Russian :-) Thanks!


NRF24L01 (Weili V977 electric straight, KN agreement, 200M distance above the ground, Chi Yuan HCP100S electricity straight, HISKY agreement, about 70 meters from the ground, the protocol is provided by the manufacturer to DEVIATION project, the manufacturers seem to have been restricted, tested other thirty-four kinds of modules, only 30-70 meters distance)


Google translation needs some deep learning capability before it can be trusted :)

NRF24L01 (Weili V977 electric heli, KN protocol, more than 200M ground distance, Chi Yuan HCP100S electric heli, HISKY protocol, about 70M ground distamce, this protocol is provided by the manufacturer to DEVIATION project, the manufacturer seems to have restricted the distance, tested other 3 or 4 modules, all had the distance of only 30-70 m)
Last edit: 18 Apr 2016 23:34 by valley_nomad.

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18 Apr 2016 23:35 #46768 by victzh
Replied by victzh on topic 3in1 / 4in1 RF module
Thanks, now I see.

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19 Apr 2016 00:03 - 19 Apr 2016 00:05 #46769 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module
"....NRF24L01( 伟力V977电直,KN协议,地面距离200M以上,驰远HCP100S电直,HISKY协议,地面距离70米左右,该协议是厂家提供给DEVIATION项目,厂家似乎做了限制,测试过其他三四种模块,距离也只有30到70米)..."

I can read Chinese,it's mean:
NRF24L01 RF test , with WLtoys V977 heli & KN protocol , range is 200M above(as I know, it's due to environmental limitation), but with Hisky HCP100S & Hisky protocol (as he know,this protocol is provided by Hisky,is it correct?) range is only 70M due to Hisky limit the range, the seller tested with few different NRF24L01 modules all got same result ,range is only 30M~70M with Hisky protocol.
Last edit: 19 Apr 2016 00:05 by dc59.

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19 Apr 2016 00:07 #46770 by goebish
Replied by goebish on topic 3in1 / 4in1 RF module
I think I understand, that's because V977 and KN protocol (same one...) is 250kbps, HiSky is 1Mbps, hence the better range with the former. It has nothing to do with the manufacturer of the board.

dc59 wrote: I can read Chinese


Ah, that's good to know ;)

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19 Apr 2016 00:40 #46772 by Slammer
Replied by Slammer on topic 3in1 / 4in1 RF module
So does this mean the two 3 in 1 modules that i order from this batch are no good? As they are still on the way somewhere out there...

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19 Apr 2016 01:42 #46773 by cmpang
Replied by cmpang on topic 3in1 / 4in1 RF module
i am chinese
i don't have hisky but for the other protocols i have tested with my 3in1 , they are every bit as good, if not better than using individual modules.
forget the current 4in1, it is only meant for those non walkera-deviation users.
eagerly waiting for the upcoming 4in1 tought that also including cyrf.
hopefully the maker can solve the overheat issue

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19 Apr 2016 10:39 #46791 by valley_nomad
Replied by valley_nomad on topic 3in1 / 4in1 RF module

goebish wrote: I think I understand, that's because V977 and KN protocol (same one...) is 250kbps, HiSky is 1Mbps, hence the better range with the former. It has nothing to do with the manufacturer of the board.
.....


That makes sense. Thanks.

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19 Apr 2016 15:26 #46798 by rasqba
Replied by rasqba on topic 3in1 / 4in1 RF module
Does the 3-in-1 BG version have PA for all modules?
And what is it about this "power issue" wth Devo 7E in BG product description? Maybe it would require some standalone powering (like a vreg from battery or smth)?

Have a nice day,
rasqba

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19 Apr 2016 18:13 #46812 by victzh
Replied by victzh on topic 3in1 / 4in1 RF module
The guy who made the module is asking about telemetry protocols for nRF24L01 to be able to test them. To the best of my knowledge there are none, but some of them use auto-acknowledge which also stops working when LNA is absent.

What we can propose to him to test on?

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19 Apr 2016 18:21 - 19 Apr 2016 18:23 #46814 by goebish
Replied by goebish on topic 3in1 / 4in1 RF module
I would try to bind with CX10 (blue pcb) / CX10-A at a distance, as the TX is waiting for a response from the aircraft to complete bind.
Seems it fails most of the time with current 4-in-1 module.

edit: that's just what I've read on RCG, I ordered a 4-in-1 but haven't received it yet.
Last edit: 19 Apr 2016 18:23 by goebish.

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