Checking sensor status

[lurendrejer]

Hi - how would i go about doing: Button pressed -> if door sensor closed -> then do whatever ?

I can't really see any way to check the status of a node in the 'plugin'

[marcus-j-davies]

Hey!

There are 2 ways.

Store the value of when the door was last closed/opened (storing the event somewhere) - for later use

OR.

use the ValueAPI - to fetch the value from the z-wave value cache

let ValueID = {
    ....,
    ....
}
let Message = {
    payload: {
        mode: "ValueAPI",
        node: 2,
        method: "getValue",
        params: [ValueID]
    }
}
return Message

you can get the value ID, by double clicking the current value in the UI
remember this?
#110 (reply in thread)

[lurendrejer]

I'm going with the get-from cache part - I wan't things to be completely stateless :)

[marcus-j-davies]

The value cache is kept upto date as and when your devices send such updates.
so when you fetch the value as above - it will be the last value the device (door sensor) reported

some values are indeed stateless.
like a button press on a security keypad for instance.

[marcus-j-davies]

you could use the CCAPI also - but the CCAPI is 'real time' - so using a get type request wont work for battery devices.
the value cache will always be the last value that was known.

[marcus-j-davies]

here is the wiki for ValueAPI 😄

https://github.com/zwave-js/node-red-contrib-zwave-js/wiki/Value-API

[marcus-j-davies]

@lurendrejer
Just a curtesy call, to see how things are going (and your still with us 😉 )

Any problems - please reach out to us

[lurendrejer]

Everything is dandy and I'm out for the weekend :)

I'm looking into node-red and clustering atm for a work-related case.