Can we use other MQTT enabled sensors to drive faikin auto mode?

[mmmgggttt]

Hello, i do have TRVs working on zigbee2mqtt which are used in winter to drive my heaters. They do , during summer , provide info on temperature. Can I integrate this to allow faikin to drive the auto mode?

[revk]

We handle several types of BLE sensors. If it shows on the Faikin when you enable BLE, great, if not, probably not. It does not talk zigbee.

[mmmgggttt]

i didnt mean to use zigbee indeed.
What i'm saying that us tech savvy are probably having a bunch of sensors for any reasons already present in our homes for different purposes.
In my case i know ambient temps of different rooms also in summer, due to the presence of heaters TRVs (modulating valve for radiator heaters for the winter) that are connected on the zigbee network to my HA.
If i would be able to "inject" the ambient temperature reading to FAIKIN throughout MQTT and HA , i would then be able to set auto mode for a remote room , without having to buy a BLE sensor.

I hope this make sense.

maybe it's already possible playing around with MQTT and HA but not sure.

thank you

[revk]

Ah I see, yes, you can send regular messages to Faikin to advise current reference temperature, as per the Manual.

Sending a control message with env.

No idea how to make HA send that, but that is how Faikin can be driven remotely.

[mmmgggttt]

ok thank you , but is it possible having the faikin listening to a specific topic ? In my case ...
zigbee2mqtt/TRV_salacentrale
which is publishing the following
{"ADC":"1215,1216,0,284,-32768,2000,0,0,100,284,284,284","ALG":"1407,1,200,284,-84,0,0,0,0,0,100","MOT":"CloseValve","keypad_lockout":"unlock","linkquality":54,"local_temperature":28.4,"occupied_heating_setpoint":20,"pi_heating_demand":0,"running_state":null,"voltage":2900}

and wishing to use the value in field local temperature to use it as ENV ....how to achieve this ?

[revk]

So you want a configurable topic and JSON extraction from payload for reference temperature.

I mean, not impossible. I'll have top think about it.

[mmmgggttt]

yeah , i think we either have the possibility to faikin to listen to a topic.... OR ...i guess, trough HA and node red taking the message from zigbee2mqtt/TRV_salacentrale , rewriting a new message to faikin with the extracted value , and publish it...

[revk]

It does sound more like something HA would be good at, to be honest.