Math when setting values

[Marius Flugsrud]

Hey,

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I often use math when setting values, but currently I have to use Temporary Variables and then use the result from that card in the THEN card of Device Capabilities. It would be great if I could skip that step and use math directly when setting AVD values.

Here are some stuff I sometimes use:

{{round(max(temperature + 2,20),1)}} to get a set set-temp for a thermostat based on current temperature, but avoid too low temperatures.

{{round(Min+(Max-Min)*Price_ratio,1)}} to set set-temp thermostat to a value based on price ratio (from Heating Controller).

[arie]

I don’t fully understand?
You can use that allready when setting AVD values:

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[Marius Flugsrud]

Oh, I have to use that then card. How about enabling expressions directly in the false/true and number fields?

[arie]

“How about enabling expressions directly in the false/true and number fields?”

I have no idea how to do that?

Is that something i can configure? Can you have an example where that can be done?

I am Adding an BLL Expression card btw.

[Marius Flugsrud]

Aren’t you already doing it with the card you used in the screenshot?

What’s the difference between the regular/current expression card and the BLL card you’ll add? What’s the disadvantage with having just one expression card (where you can use BLL)?

[arie]

The current expression card is an “old” card, allowing for functions within the DC app. I need to keep that for legacy.

However, the BLL expressions are more powerfull, contain more default functions and modules, and more customisation.

And more and more users use BLL coding/expressions, so i want to include it int AVDs.

About enabling expressions within false/true and numbers fields, i cannot, or i would need to change the argument type all to string.
And than you would have the same as the expression card ;)

And there are some advantages to having dedicated number and yes/no SET flowcards.

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[Marius Flugsrud]

Oh, right, fair point about keeping the old card for legacy.

Thanks for the help, closing this. :)

[Marius Flugsrud]

Solved