3in1 / 4in1 RF module

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20 Feb 2016 02:48 - 11 Mar 2016 10:13 #43344 by dc59
Last edit: 11 Mar 2016 10:13 by dc59.

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20 Feb 2016 05:48 #43351 by mwm
Replied by mwm on topic 3in1 / 4in1 RF module
In answer to the question about using a decoder, there are two alternatives.

First, you don't have to use a PA pin. You can use a PB pin, or PC, out etc. Basically any pin on any port can be used. There docs recommend using a PB pin on one of the two transmitters.

Second, is using a simple decoder like that plus one of these modules really that much better than a multimodule build? Same idea, except your using an mcu so you can do the switching via the SPI bus instead so you can control all for modules with the same connections you need for just one module.

Do not ask me questions via PM. Ask in the forums, where I'll answer if I can.

My remotely piloted vehicle ("drone") is a yacht.

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20 Feb 2016 12:52 - 28 Feb 2016 13:55 #43357 by Deal57
Replied by Deal57 on topic 3in1 / 4in1 RF module
Here is my list of available pins and assignments by processor type in an excel file. Please let me know if you find any errors.

Update: Added processor pin illustrations. Pin 1 on the processor is indicated by the depressed dot.

File Attachment:

File Name: STM32F103P...tion.zip
File Size:209 KB

Deviation Devo7e 3way switch mod, A7105, NRF24L01
Devo6s 2x2 switch mod, trim mod, haptic, multimodule, A7105, NRF24L01, CC2500
Devo12e 4-in-1 with voice mod -- it speaks!!
Attachments:
Last edit: 28 Feb 2016 13:55 by Deal57. Reason: Updated spreadsheet

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20 Feb 2016 15:55 #43365 by SadSack
Replied by SadSack on topic 3in1 / 4in1 RF module
This is extremely good new (4in1)
Looking at it I'd get 4in1 and remove RF module and re do PB's layout to use new module, maybe even just a 2 layer design!
Just need coder :-)

Qudos to midelic! That's his design on most part.

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20 Feb 2016 22:01 #43383 by ruzam
Replied by ruzam on topic 3in1 / 4in1 RF module

mwm wrote: First, you don't have to use a PA pin. You can use a PB pin, or PC, out etc. Basically any pin on any port can be used.


Not all transmitters have easily accessible pins to use. At least that's my assumption. I've only ever owned a 7e and getting at un-used pins can be a challenge. In the not too distant future I'd like to experiment with new modifications of my own like additional analogue knobs. Keeping the free I/O pins clear can only help later.

mwm wrote: Second, is using a simple decoder like that plus one of these modules really that much better than a multimodule build?


I haven't been following the multimodule build. I'm not entirely sure what it will or won't do or provide, or if it's even practical to fit in a 7e. My initial impression is it is that it is something the owners of larger transmitters have bean wanting. But I have modded my 7e to add two additional transmitter modules (many 7e owners have). It gets crowded in that tiny case when you start stuffing additional transmit boards, and then there's antenna issues, wiring, etc, etc. Here we have an opportunity to maybe replace 3 separate boards with a single one, for less cost and far less space inside the case. And it looks like a drop in replacement, excepting the decoder part. In fact, I could even live with using just 2 of the 3 on board RF units in the 3in1, if it replaces two separate boards.

With a the small software tweak and a decoder chip I could expand my 7e protocol list by one more than I had before, with less electronics jammed in the case. For 7e owners that's exciting. I don't think it takes anything away from the multimodule build goals.

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20 Feb 2016 22:29 #43387 by ruzam
Replied by ruzam on topic 3in1 / 4in1 RF module

dc59 wrote: Is it possible to install a 2 to 4 daughter board on 3 in 1 module ?


I don't see why not. The decoder would need a connection to ground and Vcc, plus the 2 inputs from the transmitter and the 3 outputs to the module. Looking at the 3 in 1 module, the 3 RF selects and a ground are neatly organized on one end. The actual decoder, only requires one chip. If it's an smd IC, the daughter board itself would be barely bigger than the pin space it needs to mount to the 3-in-1.

It wouldn't be hard to design a simple board that connects to all the pin holes on the 3-in-1. I'm imagining a ready to go DIY board ready built with pins ready to solder into the 3-in-1 board and wires attached so all you have to do is is solder it to the 3-in-1 and attach the wires to the usual transmitter pads. Imagining is easy :cheer:

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21 Feb 2016 00:03 - 21 Feb 2016 02:31 #43389 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module

mwm wrote: In answer to the question about using a decoder, there are two alternatives.

First, you don't have to use a PA pin. You can use a PB pin, or PC, out etc. Basically any pin on any port can be used. There docs recommend using a PB pin on one of the two transmitters.

Second, is using a simple decoder like that plus one of these modules really that much better than a multimodule build? Same idea, except your using an mcu so you can do the switching via the SPI bus instead so you can control all for modules with the same connections you need for just one module.


Thanks mwm , you always give me good advise! :cheer:

Deal57 wrote: Here is my list of available pins and assignments by processor type in an excel file. Please let me know if you find any errors.

Attachment not found


Hi Deal57,
I can't find any file in zip,it's 0kb file size...... :(

ruzam wrote:

dc59 wrote: Is it possible to install a 2 to 4 daughter board on 3 in 1 module ?


I don't see why not. The decoder would need a connection to ground and Vcc, plus the 2 inputs from the transmitter and the 3 outputs to the module. Looking at the 3 in 1 module, the 3 RF selects and a ground are neatly organized on one end. The actual decoder, only requires one chip. If it's an smd IC, the daughter board itself would be barely bigger than the pin space it needs to mount to the 3-in-1.

It wouldn't be hard to design a simple board that connects to all the pin holes on the 3-in-1. I'm imagining a ready to go DIY board ready built with pins ready to solder into the 3-in-1 board and wires attached so all you have to do is is solder it to the 3-in-1 and attach the wires to the usual transmitter pads. Imagining is easy :cheer:


Hi ruzam,

I contacted with TaoBao seller yesterday and discussed about daughter board , he also think it's a good solution, he will take some time to design that board.

The final goal is 4in1 module I think,take stock cyrf6396 away and install 4in1, single module , single antenna , maybe it need to solder only 1 extra wire for chip/antenna selection ........ :woohoo:

Thanks for your share.
Last edit: 21 Feb 2016 02:31 by dc59.

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21 Feb 2016 01:13 #43392 by Deal57
Replied by Deal57 on topic 3in1 / 4in1 RF module
Fixed the Zip... thanks!

Deviation Devo7e 3way switch mod, A7105, NRF24L01
Devo6s 2x2 switch mod, trim mod, haptic, multimodule, A7105, NRF24L01, CC2500
Devo12e 4-in-1 with voice mod -- it speaks!!

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21 Feb 2016 02:31 #43393 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module

Deal57 wrote: Fixed the Zip... thanks!


Got it , thanks a lot. :cheer:

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22 Feb 2016 22:06 #43479 by victzh
Replied by victzh on topic 3in1 / 4in1 RF module
Aaand 3in1 modules are out of stock!

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23 Feb 2016 06:49 - 24 Feb 2016 00:10 #43495 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module

victzh wrote: Aaand 3in1 modules are out of stock!


Hi victzh,

Some component of 3-in-1 module has quailty issue,it will take around one week for next batch component.

I have 8s and 7e but I manage to get a 10 for module test, I don't want to solder wire to MCU ,that will kill my TX I think.
Last edit: 24 Feb 2016 00:10 by dc59.

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23 Feb 2016 17:57 #43517 by victzh
Replied by victzh on topic 3in1 / 4in1 RF module
Are you in China? Can you influence the design? If so, may be Universal module can be produced directly by these people. Can you suggest it to them?

I bought couple of 4-in-1 boards, they're less complete but may be more suitable for making something close to the Universal module.

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24 Feb 2016 00:09 #43530 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module

victzh wrote: Are you in China? Can you influence the design? If so, may be Universal module can be produced directly by these people. Can you suggest it to them?

I bought couple of 4-in-1 boards, they're less complete but may be more suitable for making something close to the Universal module.


Hi victzh,
I am in Taiwan not China! I always contact TaoBao seller via Ali instant message software, all your suggestions I will pass to him, I can't influence design just give him suggestion!
I did't subscribe "Universal module" thread for a while, because I can solder so many SMD component as you can do, but I will try to convince him to produce it. :cheer:

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26 Feb 2016 00:21 #43657 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module
3-in-1 and 4-in-1 modules have arrived.

3-in-1 :



pitch 2.0mm



Remove pin, solder wire.




4-in-1 :






I will install 3-in-1 into my devo 10 first and check all RF module work fine or not,
will report soon , but I have no idea about 4-in-1 now , maybe remove iron cover
and see what's inside the module, any suggestion?

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26 Feb 2016 14:56 #43675 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module
3-in-1 module works OK on my Devo10.
All 3 RF chip works fine, I tested :
A7105 : Nihui U807 quad. flysky protocol - V6x6
CC2500 : Skyartec Wasp nano CP skyartec protocol
Skyartec mini skyfun skyartec protocol
nRF24L01 : JJRC H6C V2x2 protocol
keep testing.




Attachments:

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26 Feb 2016 17:10 #43691 by RedSleds
Replied by RedSleds on topic 3in1 / 4in1 RF module

dc59 wrote: 3-in-1 module works OK on my Devo10.
All 3 RF chip works fine, I tested :
A7105 : Nihui U807 quad. flysky protocol - V6x6
CC2500 : Skyartec Wasp nano CP skyartec protocol
Skyartec mini skyfun skyartec protocol
nRF24L01 : JJRC H6C V2x2 protocol
keep testing.

Range of each???

DEVO 10 - Multi-module with nRF24L01 +PA +LNA, A7105 +PA, & CC2500 +PA +LNA transceivers.
Nightly Build: v4.0.1-548bbf5 (6/9/2015)

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26 Feb 2016 17:54 #43695 by TheSFReader
Replied by TheSFReader on topic 3in1 / 4in1 RF module
Hi, I don't get how you connect the 3 CS ? are 3 pins available on a Devo 10 ?
Just finished yesterday the install of an NRF module on my brand new Devo 7e, and perhaps would jump on an 3in 1 / 4 in one as a next step..., and don't get how you'd choose with only 2 "csel" pins (don't see any inverter there...)

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26 Feb 2016 19:19 - 27 Feb 2016 00:15 #43708 by blackmoon
Replied by blackmoon on topic 3in1 / 4in1 RF module
I just discovered this thread, very nice find! The 3-1 is what I aim for in a 6s.f

dc59 is it working on the devo 10 with a sepcial build ? Or is it the latest nightly ?

Since the 10,8 and 6s share the same cpu, could you please share the connections pins and hardware.ini ?

Thank you

Some component of 3-in-1 module has quality issue,it will take around one week for next batch component.


EDIT: It seems range is pretty small for the 4-1 [Google translated]

EDIT2 : Just saw in the other thread that poor range was already mentioned.
Last edit: 27 Feb 2016 00:15 by blackmoon.

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26 Feb 2016 23:52 #43725 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module

RedSleds wrote: Range of each???


It's not done yet,due to weather issue,it's on my todo list. :P
I know it's quite important,is there any way to do it indoor?

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26 Feb 2016 23:57 #43726 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module

TheSFReader wrote: Hi, I don't get how you connect the 3 CS ? are 3 pins available on a Devo 10 ?
Just finished yesterday the install of an NRF module on my brand new Devo 7e, and perhaps would jump on an 3in 1 / 4 in one as a next step..., and don't get how you'd choose with only 2 "csel" pins (don't see any inverter there...)


B7 pin is available for this, and it can be solder wire by most users.






Hardware.ini

enable-cyrf6936 = B12
has_pa-cyrf6936 = 1
enable-a7105 = A13
has_pa-a7105 = 1
enable-cc2500 = A14
has_pa-cc2500 = 1
enable-nrf24l01 = B7
has_pa-nrf24l01 = 1
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