It could be possible?
I have a project to measure in 3 or 4 points the temperature and humidity in a hause wall
Good question, Theoretically yes I would expect so, the sensors are I²C and each one has a unique id.
Although this has not been done previously (to my knowledge) so you would need to write new firmware and connect all the sensors in parallel, even though the existing sensors connections are not readily available via connectors etc. I do not know offhand if the library that OEM uses caters for multiple sensors though.
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