nRF9151DK with nRF7002 EK

[itieledri]

Hi everyone,

I’m currently evaluating whether it is practical to use the nRF9151 DK together with the nRF7002 EK in the same project.

The goal is to use the nRF9151 for LTE-M/NB-IoT connectivity and the nRF7002 for Wi-Fi, using nRF Connect SDK / Zephyr.

I wanted to ask:

1. Has anyone successfully used the nRF9151 DK + nRF7002 EK combination?
2. Is there an official or recommended sample/project configuration for this setup?
3. Are there any required Devicetree overlays or Kconfig options specific to this combination?
4. Are there any known limitations with RAM/flash usage when combining LTE, modem libraries, Wi-Fi, TLS/cloud connectivity, and Zephyr networking on the nRF9151?
5. Would Nordic recommend this architecture for a production design, or would it be better to use a separate MCU for the Wi-Fi side and communicate with the nRF9151 over UART/SPI?

Any guidance, example overlays, or references to similar projects would be very helpful.

Thanks.

[Nishant Gaurav]

Hi itieledri

1 ) Yes, nRF9151 DK + nRF7002 EK is a supported combo in NCS, and also nordic Thingy91x device is using nrf9151 and nrf7002 for wifi based location. 

2 ) Yes there is official sample for this like  Wi-Fi: Scan sample and Wi-Fi: Shell sample , both sample you will bget in NCS, Keep (  nrf9151dk/nrf9151/ns )  board target with the ( nrf7002ek_nrf7000 )shield. build with command ( west build -p -b nrf9151dk/nrf9151/ns -- -DEXTRA_CONF_FILE=overlay-scan-only.conf -DSHIELD=nrf7002ek -DSB_CONFIG_WIFI_NRF70_SCAN_ONLY=y ).

3 )  Reference overlay examples are available in the SDK at:

• sdk-nrf/boards/shields/nrf7002ek/boards/nrf9160dk_nrf9160_ns.overlay
• sdk-nrf/samples/cellular/lwm2m_client/boards/nrf9160dk_with_nrf7002ek.overlay

Feature	nRF9151 DK + nRF7002 EK
Wi-Fi Scan (location)	Supported
Wi-Fi Shell (scan-only)	Supported
STA Mode (full Wi-Fi)	Not supported
SoftAP / Wi-Fi Provisioning	Not supported

4)   RAM/flash gets tight running full LTE + TLS + full Wi-Fi networking + cloud together on nRF9151 (limited app-core RAM).

Nordic's own combos avoid this by running Wi-Fi in scan-only mode (CONFIG_WIFI_NRF700X_SCAN_ONLY) alongside LTE.

Full dual-stack + TLS is possible but needs trimming and checking via west build -t ram_report/rom_report.

5 ) Nordic's own Thingy:91 X validates the integrated architecture. Nordic's own reference product integrates nRF9151 + nRF7002 + nRF5340 on a single board, which implies the integrated approach is considered production-viable — at least for the Wi-Fi scan-only + LTE use case. [Thingy:91 X hardware].

Regards

Nishant