Choose nRF5340 or nRF52840 for Matter end device and Board router

[Jason Fan]

Hi Sir/Madam,

I'm looking for a solution for Matter device and iboard router.

I saw both nRF5340 and nRF52840 can support Matter. Since 5340 has more cumputering power and an additional network core comparing to 52840 , how should I evaluate which one I should use base on Matter developement.

Another quesiton is that we would like to develope board router. Whcih one is better for RCP solution according to current Nodric SDK? Because I just saw 52840 information for board router on Nordic website. Can we also use 5340 to replace 52840 on board router architecture.

The last question is, if we would like to develope Matter on wifi environment, is the nRF7002 correct solution and how its SDK sustus is now? or do you have another solution for Matter WiFi?

Thank you

Best regardsa,

Jason Fan

[Jørgen Holmefjord]

Hi,

I saw both nRF5340 and nRF52840 can support Matter. Since 5340 has more cumputering power and an additional network core comparing to 52840 , how should I evaluate which one I should use base on Matter developement.

This depends on what kind of Matter device you are developing. nRF5340 will as you say have more computing power and separation of application from network core, and it comes with higher security features and generally more/faster peripherals. If you want to utilize any of the additional features in your application, the nRF5340 is a good choise.

Another quesiton is that we would like to develope board router. Whcih one is better for RCP solution according to current Nodric SDK? Because I just saw 52840 information for board router on Nordic website. Can we also use 5340 to replace 52840 on board router architecture.

For a Thread border router solution, the typical choices for RCP would be nRF52840 or even the smaller nRF52833, due to the limited resource requirements for this use-case (most of the OpenThread stack runs on the host processor, and the nRF chip is mainly running the radio to send/receive packets between the host and Thread network. The high-end nRF5340 would normally be overkill in this setup, and will increase the cost of your design. I can't think of any limitations in the hardware that prevents you from using nRF5340 as a RCP, but it is currently not supported in the software.

The last question is, if we would like to develope Matter on wifi environment, is the nRF7002 correct solution and how its SDK sustus is now? or do you have another solution for Matter WiFi?

Yes, nRF7002 is the only WiFi chip currently available from Nordic. Matter over WiFi with the nRF7002 is already supported (experimental) in multiple of the Matter samples we provide in the latest nRF Connect SDK release. Note that the nRF7002 is a WiFi companion chip, meaning you will need a nRF5340 as the host MCU in addition.

Best regards,
Jørgen

[Jason Fan]

Very clearly. Thank you so much.