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

More
29 Apr 2016 04:16 #47401 by C0ckpitvue 777
Replied by C0ckpitvue 777 on topic 3in1 / 4in1 RF module
Thanks bro,I appreciate the fb,that's good to know all issues have been addressed,modified and fixed.

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 06:01 #47402 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module

ursus69 wrote: Received today my 3in1 module from Banggood...
The module works ok? Have range problem??
The final connections for the Devo10 are this??


This is correct connection for DEVO10, it works fine with me, no any problem, the known issues for 3 in 1 : A7105 & nRF24L01 have no telemetry support duo to PA/LNA connection problem, for me it's no problem, I don't have any quad/protocol support telemetry by these two RF chip.

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 07:22 #47405 by ursus69
Replied by ursus69 on topic 3in1 / 4in1 RF module

HappyHarry wrote: afaik the current and future batches of the 3in1 have no issues, it was only the early batch that didn't have the pa/lna for the cc2500 connected properly and that has since been addressed


The batch from Taobao? Or banggood??

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 07:23 #47406 by ursus69
Replied by ursus69 on topic 3in1 / 4in1 RF module

dc59 wrote:

ursus69 wrote: Received today my 3in1 module from Banggood...
The module works ok? Have range problem??
The final connections for the Devo10 are this??


This is correct connection for DEVO10, it works fine with me, no any problem, the known issues for 3 in 1 : A7105 & nRF24L01 have no telemetry support duo to PA/LNA connection problem, for me it's no problem, I don't have any quad/protocol support telemetry by these two RF chip.


Thanks a lot!! I will try!!
Have good ranges??

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 08:50 - 29 Apr 2016 08:51 #47408 by dc59
Last edit: 29 Apr 2016 08:51 by dc59.

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 09:24 #47409 by ursus69
Replied by ursus69 on topic 3in1 / 4in1 RF module

dc59 wrote:

ursus69 wrote: Have good ranges??


Range test result:
www.deviationtx.com/forum/7-development/...dule?start=100#44126
and
www.deviationtx.com/forum/7-development/...dule?start=100#44180


I read that you finally connected the LNAEN to VCC??

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 09:40 #47411 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module

ursus69 wrote: I read that you finally connected the LNAEN to VCC??


I bought first batch 3in1 module, I need to wire LNAEN to VCC, but I think you don't need to that, you should get new batch.

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 09:44 #47412 by ursus69
Replied by ursus69 on topic 3in1 / 4in1 RF module

dc59 wrote:

ursus69 wrote: I read that you finally connected the LNAEN to VCC??


I bought first batch 3in1 module, I need to wire LNAEN to VCC, but I think you don't need to that, you should get new batch.


You bought from Taobao or Bangoodd?

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 10:01 #47413 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module

VeGani wrote: Hi, I just started with this hobby, and decided to order 3in1 module for my Devo 7E.
I've gone thru all information regarding installation of this 3in1 module, and found out some picture posted by others (Leo Li and dc59)

I would like to ask a few questions on Devo 7E pinout:



1. Which are the VDD pin, A or B or both? Is there any difference if 3in1 VDD soldered into pin A or B above? Leo Li use pin B, while dc59 use pin A.
2. Is there any difference if GND soldered to pin C or pin D? I read some information that someone experience frozen Devo 7E when he soldered A7105 to pin D, but then problem solved when he re-soldered GND to pin C.

Thanks in advance.


please find my devo7e connection pic. at this post:
www.deviationtx.com/forum/7-development/...dule?start=180#45523

I didn't find any problem about those 2 wiring method, you can find the wire on PCB , A connected to B, it's the same point !
and I had checked pin C & pin D with a multimeter, it's all GND, I have never met frozen issue.

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 10:43 #47414 by VeGani
Replied by VeGani on topic 3in1 / 4in1 RF module
Thanks for the reply, dc59.

Now need to be patient as the item is still in backorder from BG.

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 15:44 #47424 by rkozola
Replied by rkozola on topic 3in1 / 4in1 RF module
I have tried searching and could not find any info. Has a 3rd location been identified for a chip select pin/pad for a 12s?

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 15:46 #47425 by mwm
Replied by mwm on topic 3in1 / 4in1 RF module

dc59 wrote: I didn't find any problem about those 2 wiring method, you can find the wire on PCB , A connected to B, it's the same point !
and I had checked pin C & pin D with a multimeter, it's all GND, I have never met frozen issue.


The GND wiring issue seems to be a Devo 10 issue. Putting in two or more extra modules taxes the power supply, which can cause "missing CYRF" message at boot. Using the CYRF GND seems to help with that. I don't recall seeing reports of such problems with the 7E.

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.

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 22:26 #47458 by HappyHarry
Replied by HappyHarry on topic 3in1 / 4in1 RF module

dc59 wrote: the known issues for 3 in 1 : A7105 & nRF24L01 have no telemetry support duo to PA/LNA connection problem, for me it's no problem, I don't have any quad/protocol support telemetry by these two RF chip.


i thought he was correcting this issue for the second batch?

Please Log in or Create an account to join the conversation.

More
29 Apr 2016 22:39 #47459 by victzh
Replied by victzh on topic 3in1 / 4in1 RF module
Guys, don't be overly enthusiastic and don't underestimate the difficulties of hardware development. Even in China and even small (seemingly) review of the design is a complicated process. This guy heard us and will correct the mistakes. Nobody wants imperfect product, but it's a reality - first version of every product is flawed, even if it is issued by large company with separate QA department, not a single man operation. I personally bought 4 of these modules just to learn how they function and how they're designed. Many other people in this forum and on RCGroups did the same and figured deficiencies - they are known and they are being fixed. But it takes time.

Please Log in or Create an account to join the conversation.

More
30 Apr 2016 00:31 #47462 by dc59
Replied by dc59 on topic 3in1 / 4in1 RF module

HappyHarry wrote:

dc59 wrote: the known issues for 3 in 1 : A7105 & nRF24L01 have no telemetry support duo to PA/LNA connection problem, for me it's no problem, I don't have any quad/protocol support telemetry by these two RF chip.


i thought he was correcting this issue for the second batch?


3in1 A7105 LNA issue was fixed , but I don't know exactly date or batch (I will try to ask TaoBao seller to mark version number on board.),
but nRF24L01 LNA will take more time to redesign PCB,this is what I got from TaoBao seller.

Please Log in or Create an account to join the conversation.

More
30 Apr 2016 00:36 #47464 by JustenCase
Replied by JustenCase on topic 3in1 / 4in1 RF module
Pardon my ignorance, but I see two different modules for sale at Bangtgood....which is the "good" one?
Thanks!

Please Log in or Create an account to join the conversation.

More
30 Apr 2016 00:37 #47465 by kahuna001
Replied by kahuna001 on topic 3in1 / 4in1 RF module
So... The one we are getting a few days ago don't have the PA/LNA issue correct ?

dc59 wrote:

HappyHarry wrote:

dc59 wrote: the known issues for 3 in 1 : A7105 & nRF24L01 have no telemetry support duo to PA/LNA connection problem, for me it's no problem, I don't have any quad/protocol support telemetry by these two RF chip.


i thought he was correcting this issue for the second batch?


3in1 A7105 LNA issue was fixed , but I don't know exactly date or batch (I will try to ask TaoBao seller to mark version number on board.),
but nRF24L01 LNA will take more time to redesign PCB,this is what I got from TaoBao seller.

Please Log in or Create an account to join the conversation.

More
30 Apr 2016 02:00 #47467 by wasp09
Replied by wasp09 on topic 3in1 / 4in1 RF module
I'll probably go with the standalone CC2500 RF modules I ordered for now and wait till it is proven to get a 3 in 1.

Please Log in or Create an account to join the conversation.

More
30 Apr 2016 22:26 #47519 by koss
Replied by koss on topic 3in1 / 4in1 RF module

wasp09 wrote: I'll probably go with the standalone CC2500 RF modules I ordered for now and wait till it is proven to get a 3 in 1.


So far so good with my 3-in-1 from banggood (ordered first day they were available). I certainly don't regret the $26 purchase. I've not done extensive range testing but i've flown multiple models with all 3 radios in my Devo 7e with no problem. I'd say it's worth every penny+++. I'm waiting a few months however for the 4-in-1 JR module until it's tested/revised if possible.

I strongly agree the Taobao seller needs to start putting version numbers on these items!

Please Log in or Create an account to join the conversation.

More
01 May 2016 03:47 - 01 May 2016 03:47 #47528 by tcaudill01
Replied by tcaudill01 on topic 3in1 / 4in1 RF module
I'm having horrible range issues with the A7105 section of the 3-in-1. I'm seeing only around 100ft (30m) of range at best!
I've done the VCC to LNA mod with a 1K5 resistor and that made absolutely no difference. Increasing the power output in the transmitter also make no improvement.

Does anyone have an idea of what may be wrong?

P.S. My 3-in-1 was the second batch and shipped on 4-22. It's installed in a Devo10 and running the latest nightly.
Last edit: 01 May 2016 03:47 by tcaudill01.

Please Log in or Create an account to join the conversation.

Time to create page: 0.195 seconds
Powered by Kunena Forum