NB-IoT − Simple UDP Example

[Florian Baumgartl]

Hello,

is there any kind of good practice available about how to generate UDP traffic with the nRF9160DK via NB-IoT for a simple test?

As far as I know the AT client example does not support IPv4/v6 commands but https://github.com/Rallare/fw-nrfconnect-nrf/tree/nrf9160_samples looks very promising.

Does anyone know if the example(s) will work with the latest modem firmware mfw_nrf9160_1.0.1?

How do you handle the dial-up process with such example running? Can you still use Nordic's LTE Link Monitor or is it possible to switch between e.g. two applications?

... and are there any plans to extend the current AT specification in order to support such commands? 

Thx & Have a nice day,
Florian

[MJD093]

There are examples for UDP in that repo you posted.

See https://github.com/Rallare/fw-nrfconnect-nrf/blob/nrf9160_samples/samples/nrf9160/udp_with_psm/src/main.c

AT Commands are how we interface with and configure the modem but under most applications, the use of sockets will handle data transport.

See https://github.com/Rallare/fw-nrfconnect-nrf/blob/dea99f9afc37c9a69d66d7136d89d38c050a2fde/samples/nrf9160/udp_with_psm/src/main.c#L135 for how a socket is setup in code for UDP transport.

Refer to https://github.com/NordicPlayground/fw-nrfconnect-zephyr/blob/master/include/net/socket.h for sockets.

Note that we use the prj.conf option 'CONFIG_NET_SOCKETS_POSIX_NAMES=y' to transform socket functions into tider names. i.e. zsock_socket() -> socket()