Thread Border Router image for nRF5 SDK for Thread

[Brian (Geek)]

Hello, 

We have a product developed using nRF5 SDK for Thread v4.1 based on mqtt-sn sleepy publisher example. 

Thread border router image supplied by Nordic also have mqtt-sn gateway setup for supporting it's example. I have read threads in dev zone suggesting that the mqtt-sn gateway setup done in border router image has end device connection limit and there are some other issues also associated with that mqtt-sn gateway. 

So I would like to know what's the latest border router image available and supporting nRF5 SDK mqtt-sn thread example. I have read there is docker image also available supporting mqtt-sn publisher subscriber example of nRF5 SDK for Thread. But I am not getting it's link and don't know how to use it. So can anyone help. 

Because currently my product development is finished with mqtt-sn example and I am having issues with border router and mqtt-sn gateway. 

Looking for quick response. 

[Sigurd Hellesvik]

Hi,

I have read there is docker image also available supporting mqtt-sn publisher subscriber example of nRF5 SDK for Thread

Do you have a link to this reference?

Regards,
Sigurd Hellesvik

[Brian (Geek)]

Hello here is the link of the image which I am talking about but when I run this docker image it fails to start otbr-web. 

github.com/.../otbr-mqtt-sn

Can anyone please help. 

[Brian (Geek)]

Reason why I want to test this OTBR docker image is because the fact that some of my devices gets detached from thread network when I start publishing at faster rate i.e 10 sample per second using mqtt-sn sleepy publisher example. 

My devices are continuously getting disconnected with in few minutes interval even though all nodes and gateway is in line of sight and few meter away from each other. 

Currently my end device child timeout period is set to 40 sec and parent poll period kept to 50-80 msec during the publish rate of 10 samples per second. 

I have attached the nRF5 sniffer capture below. In the capture at the end you can see my device gets detached from thread network and is trying to connect with thread devices but without any success. 

Sniffer Capture:

EndDevice_Capture.pcapng

Can anyone please help me with this :(

[Sigurd Hellesvik]

Hi,

Brian (Geek) said:

is docker image it fails to start otbr-web. 

Try to run the image on its git Tag v1.2.

Does it still fail then?

Regards,
Sigurd Hellesvik

[Brian (Geek)]

Yeah I ran the master branch which last update is same git Tag v1.2 . I have connected my RPi to internet via WiFi and not LAN. Still got the same error with otbr-web.

I would like to know few things before going forward to again try out that docker image because currently my OTBR image provided by Nordic with different MQTT-SN Gateway (same used in Docker image) is working fine. 

Can I perform following things in docker image 

1. Change network parameters of current thread network ?

2. Perform external thread commissioning using thread app ?

3. Will the webpage for configuring the Thread Network open up on local ip (RPI IP) ? 

4. Also the docker image use RCP, so from where I should build RCP firmware for nRF52840 SOC instead of dongle ?

[Sigurd Hellesvik]

Hi

Brian (Geek) said:

1. Change network parameters of current thread network ?

This should work

Brian (Geek) said:

2. Perform external thread commissioning using thread app ?

This should work

Brian (Geek) said:

3. Will the webpage for configuring the Thread Network open up on local ip (RPI IP) ? 

This should work

Brian (Geek) said:

4. Also the docker image use RCP, so from where I should build RCP firmware for nRF52840 SOC instead of dongle ?

You can get pre-build docker image and hex file for nRF2840Dongle from https://github.com/osaether/otbr-mqtt-sn/releases/tag/v1.2.

If you want to build the RCP manually, you can follow the instructions for Configuring a radio co-processor.

Regards,
Sigurd Hellesvik