Receiving a time value via MQTT?

Configuration
1

Hi there!

I want to automatize a turn on / off command based on time that I set in iobroker.
From there, I forward the time, e.g. “09:00:00” (without the ") via MQTT to Home Assistant. This arrives as a string.

When trying to set the device_class to “timestamp”, nothing gets received at all; when I remove the device_class, the string arrives in HA … but I cannot use this sensor for a time automation.

Does anyone have an idea how to solve? I also have the single components (hours, minutes, seconds) available via MQTT if needed.

Currently it looks like this (in my MQTT yaml)

  - name: Uhrzeit Sonos AMP ausschalten Wochenende
    state_topic: "ioBroker/Sound/Uhrzeit Sonos AMP ausschalten Wochenende"
    device_class: timestamp
    unique_id: Uhrzeit Sonos AMP ausschalten Wochenende

Many thanks for any guidance !
Steffen

2

The value of a Timestamp Sensor cannot simply contain the time, it must be date and time (and in ISO format).

If given a time, the today_at() function reports the current date and time in the appropriate format.

  - name: Uhrzeit Sonos AMP ausschalten Wochenende
    state_topic: "ioBroker/Sound/Uhrzeit Sonos AMP ausschalten Wochenende"
    value_template: "{{ today_at(value) }}"
    device_class: timestamp
    unique_id: Uhrzeit Sonos AMP ausschalten Wochenende
1 Like
3

Thank you very much! This helped :slight_smile:

4

You’re welcome!

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