drivers/sensors: Add SHTC3 temperature and humidity sensor. The drive…

[Shriyans406]

This adds support for the Sensirion SHTC3 sensor. I have written this based strictly on the SHTC3 datasheet as I currently do not have the physical hardware to test it on a board. It compiles cleanly and passes all nxstyle checks. If anyone has the hardware and can verify it on a physical board.

[simbit18]

Hi @Shriyans406 , please
Signature (created with git commit -s) the commit
https://nuttx.apache.org/docs/latest/contributing/guide.html#commit-requirements
and add the documentation
https://nuttx.apache.org/docs/latest/components/drivers/special/sensors/sensors_uorb.html#implemented-drivers

align Make with CMake
https://github.com/Shriyans406/nuttx/blob/97d43a571fe0171199450e07dadfd8df4aea30b5/drivers/sensors/Make.defs#L494

ifeq ($(CONFIG_SENSORS_SHTC3),y)
  CSRCS += shtc3.c
endif

[linguini1]

Thanks for the contribution! However, writing a driver without being able to test it is unfortunately not of very much use. I would suggest you only submit code which you are able to test, unless there is an open issue where someone with the hardware is requesting a feature and can test it.

Please read the contributing guide and make sure your PR meets all those requirements.

This driver doesn't use the sensor framework. You can read about it in the documentation.

[Shriyans406]

Hi @linguini1 and @simbit18, Thank you so much for the review and guidance! You are right, and I apologize for initially using the legacy and outdated framework. I have completely overhauled the PR and upgraded the driver to use the modern uORB sensor framework (shtc3_uorb.c), separating the temperature and humidity into distinct nodes. I have also added the requested documentation in sensors_uorb.rst and properly signed the commit using the DCO -s flag. Regarding testing: I am a student trying to make my first contributions to open-source RTOS development. I unfortunately do not have the physical SHTC3 board right now, but I wanted to contribute something meaningful to NuttX as this sensor was missing. I wrote this driver strictly adhering to the Sensirion SHTC3 datasheet. I tested the test-cases in Linux as i had written costum test cases and a few other simulations, but I understand, it is not ideal to submit untested code. I will manage to complete the testing at my college within a few days. Regards

…

On Fri, May 15, 2026 at 1:15 AM Matteo Golin ***@***.***> wrote: ***@***.**** requested changes on this pull request. Thanks for the contribution! However, writing a driver without being able to test it is unfortunately not of very much use. I would suggest you only submit code which you are able to test, unless there is an open issue where someone with the hardware is requesting a feature and can test it. Please read the contributing guide and make sure your PR meets all those requirements. This driver doesn't use the sensor framework. You can read about it in the documentation. — Reply to this email directly, view it on GitHub <#18880 (review)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BMTFX7WD4T4RJKNTR4GDMND42YO4TAVCNFSM6AAAAACY6OERK6VHI2DSMVQWIX3LMV43YUDVNRWFEZLROVSXG5CSMV3GSZLXHM2DEOJSHEZDIMJXG4> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you were mentioned.Message ID: ***@***.***>

[Shriyans406]

I have made changes, please give it a look.

Regards

[linguini1]

I am a student trying to make my first contributions to open-source RTOS development.

Awesome! Hope you're enjoying NuttX so far.

We'll wait to merge this PR until you're able to test at college. Also, your PR still does not follow the template: summary, impact, testing. Take a look at another merged PR for an example :)