nRF9160: LwM2M carrier

The LwM2M carrier sample demonstrates how to run the LwM2M carrier library in an application in order to connect to the operator LwM2M network.

Requirements

  • The following development board:

  • The sample is configured to compile and run as a non-secure application on nRF91’s Cortex-M33. Therefore, it automatically includes the nRF9160: Secure Partition Manager that prepares the required peripherals to be available for the application.

Building and running

This sample can be found under samples/nrf9160/lwm2m_carrier in the nRF Connect SDK folder structure.

The sample is built as a non-secure firmware image for the nrf9160dk_nrf9160ns build target. Because of this, it automatically includes the nRF9160: Secure Partition Manager.

See Building and programming a sample application for information about how to build and program the application.

Testing

After programming the sample and all prerequisites to the board, test it by performing the following steps:

  1. Connect the USB cable and power on or reset your nRF9160 DK.

  2. Open a terminal emulator and observe that the kit prints the following information:

    LWM2M Carrier library sample.
    
  3. Observe that the application receives events from the LwM2M carrier library via the registered event handler.

Troubleshooting

Bootstrapping can take several minutes. This is expected and dependent on the availability of the LTE link. During boostrap, several LWM2M_CARRIER_EVENT_CONNECT and LWM2M_CARRIER_EVENT_DISCONNECT events are printed. This is expected and is part of the bootstrapping procedure.

Dependencies

This sample uses the following libraries:

From nRF Connect SDK
From nrfxlib
From Zephyr

In addition, it uses the following samples:

From nRF Connect SDK