DecimalType

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1

I am using the updateState method to values for my channels but the state changes from the format I specified in the thing.xml file and in the sitemap. How do I solve this

2

A function keeps overriding the format the state I assigned to a channel. eg [%.2f W]. It only comes at the first time and changes without including the W

3

Yes, this is a known issue (work in progress) you could circumvent this in using a proxy item, and cutting of the unneeded decimals with a rule.

4

Proxy item ??

5

Proxy Item -> an Item with no Binding at all, i.e. the item will only be updated from rules, UI, or through osgi console.

6

I am new to openhab, please how do I do that, I am getting the data from a webservice I have created

7

.items:

Number getPower {...} //bound to webservice
Number showPower "Current Power [%.2f W]" <icon> //no binding here

.rule

import java.lang.Math

rule "update current power"
when
    Item getPower received update
then
    val myPower = Math::round((getPower.state as DecimalType) * 100.0) / 100.0
    showPower.postUpdate(myPower)
end

I didn’t test this code, so maybe there are some lapses, but I think you get an idea…

8

ok, please what goes into the getPower “bound to webservice”

9

getPower is the item what you used since now (the one with many decimal places)

10

ok thanks
something like getpower {item=Outside_Light_Switch}

11

I don’t know about your existing item definitions :slight_smile:

12

I am just giving an example lol