Integrating hx711 sample on a nrf9160dk with zephyr lwm2m_client sample

[JoelRietz]

Hello,

I am currently in the process of integrating the hx711 library written by one of your developers in order to sample weight data from a load cell and send it to a lwm2m server as done with the samples provided in Zephyr. The hx711 sample is provided for especially the nrf52840 board and I now have some troubles integrating and merging the libraries from the nrf15.0.2 SDK and my Zephyr project. When I build with west the scripts find the nrf9160 board from those scripts but the code in nrf15.0.2 doesn't provide a board for nrf9160 dk which creates build errors. So my question is, what is the easiest way to do this integration and apply it to nrf9160 with zephyr instead of using nrf52840 and nrfSDK15.0.2?

BR, Joel

[Øyvind]

Hello Joel, 

No, none of the nRF5 SDK version support nRF91 (or nRF53) series due to the complexity it introduces. 

From the release notes in Zepyr I do see that they have tried to include hx711: Git PR 22466. 

Kind regards,
Øyvind

[Droidik]

For future readers:
External Zephyr driver for HX711 is here: https://github.com/nobodyguy/HX711_zephyr_driver
There were 3 PRs to Zephyr upstream and none of them have really made it there to this day.