Calculate runtime in rule for timer - rounded values?

Setup, Configuration and Use Scripts & Rules
1

Hi experts,

I´m struggling with a rule regarding rounded values. I want to calculate a dynamic runtime for my pool pump with my rule:

if (Poolautomatik.state == ON) 
{
var temperature = OneCallAPIweatherandforecast_ForecastToday_Maxtemperature.state as Number
var stopPumpTime = if(OneCallAPIweatherandforecast_ForecastToday_Maxtemperature.state > 27 | "°C") now.plusHours(2) 

                   else now.plusHours(Math::round(0.07 * temperature))

My problem is, that the result for the timer (stopPumpTime) is a rounded value and can be 1 hour, 2 hours or 3 hours.

I want my rule to be more precise and calculate absolute values with 1 decimals. So e.g. 1,5 hours runtime.

How to achieve this? I know that the math::rounded function is responsible for the rounded values…but how to replace this?

Thanks and best regards,
Mario

2

If you need smaller steps use .plusMinutes or .plusSeconds instead of .plusHours (or combine all).

3

Thx for your reply. What do you mean with “sm”?

I tried .plusMinutes instead but the error warning message in visual studio code remains the same.

Thx

4

Sorry for the unnoticed typo ( writing on a smartphone). I corrected the reply.

What error are you getting?

5

Thank you - of course I need to switch from hours to minutes. I wanted to make things complicated… .:slight_smile:

Calculating with minutes is working as expected.

Cheers

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