nrf9160 current measurement with different data payloads

RE: nrf9160 current measurement with different data payloads

Didrik Rokhaug — Tue, 04 May 2021 09:50:58 GMT

The UDP sample can easily be configured to use UDP: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/nrf9160/udp/README.html#cmdoption-arg-CONFIG_UDP_PSM_ENABLE

But, in all samples (that uses the LTE Link Control library, which is pretty much all of them) you can set CONFIG_LTE_PSM_REQ_RPTAU and CONFIG_LTE_PSM_REQ_RAT to request PSM when you connect to the network.

The cloud_client can also be used, and as it seems to have been written with PSM in mind, it might be a better sample to use than the mqtt_simple sample.

RE: nrf9160 current measurement with different data payloads

MariusB — Mon, 03 May 2021 15:50:01 GMT

Hi,

Thanks, this was great information. However, as far as I understand, PSM is disabled in these samples? I found the sample called Cloud Client:

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/nrf9160/cloud_client/README.html

This sample does not seem to disable PSM.

RE: nrf9160 current measurement with different data payloads

Didrik Rokhaug — Mon, 03 May 2021 12:50:48 GMT

Hi,

First, we have an online power estimator: https://devzone.nordicsemi.com/nordic/power/w/opp/3/online-power-profiler-for-lte

Its estimates are based on measurements from the UDP sample: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/nrf9160/udp/README.html

We do not have a similar sample for TCP, bu the https_client might be a good starting point: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/nrf9160/https_client/README.html

Most clouds also use MQTT, so the mqtt_simple sample is also worth looking at: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/nrf9160/mqtt_simple/README.html

You can use it together with one of the open MQTT brokers to avoid having to set up a server or cloud solution yourself.

Best regards,

Didrik

RE: nrf9160 current measurement with different data payloads

MariusB — Sun, 02 May 2021 08:57:49 GMT

Also one thing: The sample should preferably use lte-m with power consumption optimization.