Unable to use Humidity sensor with derivative sensor | Home Assistant | Page 1

pliant palm Jan 17, 2025, 12:18 AM

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Hello,

I have started having an issue as of the 2025 update where I am no longer able to create a derivative sensor that uses A humidity sensor as the input sensor. It states that “On saving the derivative sensor with a humidity sensor as the input it throws the following error

‘’’value must be one of ['sensor.800_series_long_range_usb_controller_status', 'sensor.air_quality_monitor_indoor_air_quality', 'sensor.air_quality_monitor_volatile_organic_compounds', 'sensor.apollo_location', 'sensor.attic_t_h_battery_type', 'sensor.b_button_battery_type', ‘’’

Etc so forth, but never lists any of the temperature or humidity sensors as an option.

I was previously using this as a sensor for managing the bathroom humidity with an exhaust fan.

pliant palm Jan 26, 2025, 8:50 PM

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Unable to use Humidity sensor with derivative sensor

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Anyone have thoughts here?

urban aspen Jan 26, 2025, 9:08 PM

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What are your humidity/temperature sensors - can you copy what they show on the state explorer?

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I just set it up for mine and it works fine

pliant palm Jan 26, 2025, 9:11 PM

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they are all Aqara t/h Sensors connected via matter integration

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the input field for entity has removed the entites that re humidity or temp etc

urban aspen Jan 26, 2025, 9:16 PM

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Well that ruins my best guess of them somehow losing a tag that gets them registered by the derivative helper select screen

pliant palm Jan 26, 2025, 9:16 PM

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and if i "save" it with an entity that is "correct" but not in the listed options it takes a while and then always is 0

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I apreceate you trying to help here... its been an onging problem for me for a minute

urban aspen Jan 26, 2025, 9:17 PM

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Can you use those sensors in templates? e.g. just {{ states('sensor....') }} in the template dev window

pliant palm Jan 26, 2025, 9:18 PM

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as in inside a different template sensor entity?

urban aspen Jan 26, 2025, 9:18 PM

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nah, under dev tools there's a template test window

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easiest place to check

pliant palm Jan 26, 2025, 9:19 PM

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ah yes sorry - mis read your comment

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one sec let me check

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yeah they work fine there

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its weirdly just like the derivative sensor wont accept entities that have a decimal place (float?)

urban aspen Jan 26, 2025, 9:22 PM

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nope, it has no issues with mine

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something weird is going on

pliant palm Jan 26, 2025, 9:23 PM

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agreed - i just dont know where else to look for the problem

urban aspen Jan 26, 2025, 9:23 PM

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oh

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have you tried making a new one rather than editing an existing one?

pliant palm Jan 26, 2025, 9:24 PM

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hmm

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i havent

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welp... That makes me feel dumb.

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works fine on a new entity helper,

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feels like a bug that you cant change an existing one though no?

urban aspen Jan 26, 2025, 9:27 PM

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the only thing I can find in the code that would make it not show is if it thinks the units have changed for some reason

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as for why it thinks the units have changed.. i dunno

pliant palm Jan 26, 2025, 9:28 PM

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this only happened after i had a senor die, same type and connection etc, it just happened that the replacement came in just after i upgraded to the 2025 HAOS

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i mean its working now so there's that. but just generally strange behavior.

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Thank you so much for workking through it with me

urban aspen Jan 26, 2025, 9:29 PM

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np, have a good one

pliant palm Jan 26, 2025, 9:29 PM

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Can i buy you a beer or something?

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Ill PM ya

urban aspen Jan 26, 2025, 9:30 PM

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nah, it's fine

pliant palm Jan 26, 2025, 9:30 PM

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apreceate you man

#Unable to use Humidity sensor with derivative sensor