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HC3 Device Notifications


Anssi

Question

Could someone explain the device notification intervals in HC3? I have a temperature sensor from which I'd like to have a notification when the temp drops below a defined low level.

 

In device notifications I've ticked the "Low temperature" and selected the interval of "Once per day".

 

Now, once the temperature goes below the low temperature limit I start receiving notifications every single time the device sends a new temperature. That happens several times per hour, depending on how fast the temperature changes. That is not once per day. What am I not understanding?

Edited by Anssi
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@Anssi The notifications are meant to be used for rare events, like an oven overheating or a room with water pipes, that shouldn't be freezing when the temp falls below a defined degree Celsius. Every time the condition becomes true, you will get another notification.  As you have experienced, this can become disturbing.

 

I recommend you to use a scene, where can set multiple trigger conditions. Like the bandwith < low > high of degrees, this scene should be triggered.

And also a scene can be disabled / enabled when needed. With notifications, you would have to go into the settings in order to stop it. 

Edited by Fabir
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  • Sure, I can make a scene for the same thing, but that's not the point. The point is that we have this option of setting an interval for a notification, but it doesn't do anything. To me this looks like a bug.

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    It is an interval for re-sending again the notification if condition is still true.
    It will send it once a day in your case if temperature drops and stays there :)

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  • On 2/13/2024 at 6:28 PM, m.roszak said:

    It is an interval for re-sending again the notification if condition is still true.
    It will send it once a day in your case if temperature drops and stays there :)

    That's what I thought, but it doesn't work that way. HC3 will resend notifications regardless of the interval while the condition is still being true. Sorry, I didn't emphasize that enough in the beginning.

     

    Example:

    1. Set freezing temp warning to 5.0 and interval to 24 h

    2. The temp goes down from 5.5 to 4.9 --> notification, as expected

    3. 15 minutes after that the temp goes to 4.8 --> new notification

    3. 30 minutes after that the the temp goes to 4.5 --> new notification

    ...and so on.

    Edited by Anssi
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    Ah, yep - it was designed to work with life danger sensors (binary ones) at the beginning and it stayed like this, I understand what you mean now - I will put a task to the team in a backlog to change this behaviour in the future. 

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