Can nrf52840 be made to work as thread border router ?

[Dhaval Dalvadi]

We are working on product to combine esp32(wifi chipset)+nrf52840(ble, thread and matter ) we wants to keep it as matter device + matter controller to have its seprate network.

esp32 will communicate to the internet/server. 

Is there any example for nrf connect sdk matter to work as controller to add other device in network via mobile app/ble and later it can be controlled via the controller?

[AHaug]

Hi,

I think the terminology gets a bit mixed up here, since you mention both Thread Border Router and Controller about the same device (which is how I read your query). Could you have a look at https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/protocols/matter/overview/network_topologies.html and clarify any misunderstandings?

What I want you to clarify is: Do you intend for the nRF52840 part of your device to be the Thread Border Router, the Matter controller or to be both?

Kind regards,
Andreas

[Dhaval Dalvadi]

Hi Ahaug I wants my device to be both Thread border router and Matter controller

Similar we have in google nest hub to work with google home. so we wants to eliminate buying google nest hub and replace this device so that we can control our other matter enabled devices from our own matter(controller+borderrouter) device

[AHaug]

Noted, thank you for clarifying.

I believe it will be a squeeze w.r.t flash and RAM, but I will verify this with the Matter team.

Kind regards,
Andreas

[AHaug]

Hi,

It is indeed as suspected. There is not enough memory to run a TBR application plus a potential customer extension/application on the nRF52840.

If you wish to investigate any other nRF SoC options that may suit your applications needs, please reach out to your Nordic regional sales director. Let me know if you need their contact information.

Kind regards,
Andreas

[Dhaval Dalvadi]

Hi AHaug 
What if we add external flash or psram?
still not doable?

[AHaug]

Hi,

Unfortunately, extending SRAM is not something we support. Your products design may however be within the scope of the nRF54 series devices, but I recommend you reach out to your regional sales director to map out if this is the case, since I can't give any answers w.r.t roadline or product recommendations here in a devzone ticket.

Kind regards,
Andreas