First study Mesh

[tony55723]

Hello,

I found this picture on Nordic's official website

1、Can only proxy node connect to mobile phone and GATT?

2、

I open mesh example (dimming), which contains client and server

My understanding is

Client can achieve P, RN and FN

Server can achieve N, LPN and GATT

Is my understanding correct?

3、Assuming that I understand it correctly, which code can make these settings in example?

Thanks

[Hung Bui]

Hi Tony, 

1. Correct. Only Proxy node allow a phone to join the mesh network. However you can implement BLE in any node. That would allow a phone to connect to the node but not allowing it to join the mesh network. Have a look at co-exist example. 

2. No it's not correct. It doesn't really matter if you have a client or server model it's on the access level when the P, RN, FN, LPN are on the lower levels. 

3. Our examples can do most of the role for example the light switch example can be FN, RN, P, N. We have the example for LPN separately. 

[tony55723]

I found softdevice in sdk17

But now there are new problems

Did I download mesh successfully?

Can DFU problems be ignored?

Because I found articles with the same problems as me in devzone

Thank you

[Hung Bui]

Please use the nRF52 DK for development, not the dongle. The dongle is developed as a backend for nRF Connect or nRF Sniffer, not a development tool. Only after you are very familiar with the SDK and our Toolchain then you can use the dongle but it would requires some modification. 

[tony55723]

All example is specially designed for DK, right?

Because dongle has no buttons,

it is impossible to 100% test the effect without changing the example code

I only have 52840 DK here

No problem testing Mesh client

But Mesh server....

Is there any code for Thingy in the exapmle folder?

Or .... two DK board are required?

Thank you

[Hung Bui]

Hi Tony, 
You would need at least 2 DKs. The Thingy is also not supported. 

[tony55723]

I want to burn Nordic example hex to 52840dk

But there is a new problem

My system is Windows 7

J-Link is 【JLink_Windows_V752b_x86_64】

52840 DK【PCA10056  V0.9.2  2017.34】

I don't know how to solve this problem...

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Another question I'd like to ask

In keil, here is a button to download the program

In segger embedded studio, Where is the download button?

Thank you

[Hung Bui]

Hi Tony, 
Do you see the nRF52840 DK appear in "My Computer" when you plug it in ? 
Could you install Nordic Command Line Tools ? and try using nrfjprog.exe to program ? 
In Segger Embedded Studio you can flash using Target -> Download XYZ

[tony55723]

Should this be a successful implementation?

But I still display the error below in NRF connect（v3.6.1）

Thank you

[Hung Bui]

Hi Tony, 
I would suggest to try installing Jlink driver again. Aslo please upgrade (or reinstall ) nRF Connect app. The latest version of nRF Connect is v3.7.0 and the programmer is v1.4.11

Or you can just use the nrfjprog.exe to program , it's my preferred programmer if you are familiar with commandline tool. 
Note that you can use Segger Embeded Studio to program the chip after you compile the application. 

[tony55723]

I currently use command line to erase the chip, and then use SES to download the program

I have now downloaded the sample program light_ switch

The function should be successful

But I have a few questions

1、In nRF Mesh APP for iOS, why does the client have 3 elements?

(How should I understand element?)

(Server has only one element, And I only set client Element2)

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2、In my video, example is light_ switch,

The board of the client should be a proxy node,

What kind of node does the server board belong to?

Thank you

[Hung Bui]

Hi Tony,

1. Two same model can't be on one the same element. This is the reason we have multiple elements because we have multiple OnOff clients. Please study the Mesh specification here or the quick start guide here. 

2. The server node a normal mesh node and it's also a Proxy node at the same time. It can also act as a friend node.