RE: Enabling TLS on nRF7002

MJJ — Mon, 21 Jul 2025 20:23:18 GMT

The MQTT sample in NCS supports both Wi-Fi and LTE connectivity, and it can be configured to use TLS for secure MQTT communication. TLS support is enabled through overlay configuration files included in the sample. When using Wi-Fi (for example, with the nRF7002 DK), you can enable TLS and connect to brokers such as test.mosquitto.org on port 8883. The sample output confirms that TLS is active during the MQTT session over Wi-Fi, as shown by the log line: TLS: Yes MQTT sample description Sample output.

Additionally, the Nordic Developer Academy and documentation provide step-by-step exercises on enabling TLS for MQTT over Wi-Fi, including the necessary Kconfig options and certificate provisioning Wi-Fi Fundamentals Exercise as part of the Lesson 4 – MQTT over Wi-Fi.