Virtual Thermostat

[Y0RK]

Hi,

Is it possible to create a virtual(wall) thermostat in raspberrymatic, that I can set the current temperature with node-red (MQTT) ?
And this virtual thermostat will control 2 or more Homematic IP Heizkörperthermostat basic HmIP-eTRV-B

[Sven_A]

If you put those to HmIP-eTRV-B in a heating-group, there should be a virtual group device. I GUESS that could be controlled with node-red.

[tomi_cc16]

Hi York,

where you from and how did you found out about Homematic?

Regarding your question:
I’m with Sven - create a group with all your eTRV’s in it and then control the group with MQTT or node-red or ...

[Y0RK]

Hi,

Thanks, I tried the group and this works, but is it possible to override the ACTUAL_TEMPERATURE for this group? And how does it determine the temperature now from multiple radiator thermostats?

An other question: I See in the group settings that the mode can be set to whisper mode (which would be nice for the bedrooms), does this also work for the HmIP-eTRV-B (basic thermostat)? And if this is the case why is it not a setting for the device itself?

@tomi_cc16: I found out about Homematic seaching the internet, I like the open software and not have to use the cloud.
I am using the raspberry pi for control which works great!
greetings from the Netherlands

[tomi_cc16]

Hi,

HmIP-eTRV-B - basic variant - can not perform the whisper mode.