Set external temperature input of Aqara SRTS-A01 radiator thermostat

[borisneubert]

The Aqara SRTS-A01 can be paired with an external temperature sensor. I want to set the external_temperature_input numeric value to the measured temperature numeric value of the external temperature sensor on every change. This is how far I got with my automation (the entities are named after their MAC addresses):

temperature to trv:
        trigger:
                entity: 0xa4c138e74707091e
                attribute: temperature
        action:
                entity: 0x54ef441000a5c7c2
                payload:
                        external_temperature_input: ?????

Is it possible at all to copy a value from one device to another device? The documentation only shows examples with static values in actions.

Any help would be appreciated.

[mrmaximas]

@borisneubert Koenkk/zigbee2mqtt#14291 (comment)
Even if you find a best solution, I would not advise you to set the external_temperature_input very often, as this will quickly drain the TRV batteries.

[borisneubert]

@mrmaximas Thank you for the link and advice. Koenkk/zigbee2mqtt#14291 (comment) has the code. The sensor is a MiaoMiaoCe temperature/humidity sensor, which actually sends its values very very often. I need to throttle it.

[Luligu]

The Aqara SRTS-A01 can be paired with an external temperature sensor. I want to set the external_temperature_input numeric value to the measured temperature numeric value of the external temperature sensor on every change. This is how far I got with my automation (the entities are named after their MAC addresses):

temperature to trv:
        trigger:
                entity: 0xa4c138e74707091e
                attribute: temperature
        action:
                entity: 0x54ef441000a5c7c2
                payload:
                        external_temperature_input: ?????

Is it possible at all to copy a value from one device to another device? The documentation only shows examples with static values in actions.

Any help would be appreciated.

Hi,
is not possible.

[silviu-social1st-ro]

Hi there... i came here for the same reaason, propagating an external sensor value to a TRV valve.
You said copying a value from one device is not possible. Is it something that cannot be done because of some z2m restrictions or because is not on the current development path?

if is not a technical restriction, maybe someone elese, even me will go into this and do a PR.
First, i have to learn python, though :)

[Luligu]

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