LoRaWAN class A device

Overview

A simple application to demonstrate the LoRaWAN subsystem of Zephyr.

Building and Running

This sample can be found under samples/subsys/lorawan/class_a in the Zephyr tree.

Before building the sample, make sure to select the correct region in the prj.conf file.

The following commands build and flash the sample.

west build -b nucleo_wl55jc samples/subsys/lorawan/class_a
west flash

Important Notes for Multiple Runs

By default, this example will only succeed the first time it is run. On subsequent join attempts, the LoRaWAN network server may reject the join request due to a hardcoded dev_nonce value. According to the LoRaWAN specification, dev_nonce must increment for every new connection attempt.

To run this sample multiple times, choose one of the following options:

Manually Increment ``dev_nonce``: Modify the sample code to increment join_cfg.otaa.dev_nonce before each connection attempt and ensure it is preserved across reboots.
Built-in Zephyr Settings Implementation: Enable CONFIG_LORAWAN_NVM_SETTINGS in the Kconfig. This allows proper storage and reuse of configuration settings, including the dev_nonce, across multiple runs.

LoRaWAN class A device

Overview

Building and Running

Important Notes for Multiple Runs

See also