Hi @Kermit, I think and thought I had it running but this night suddenly the light was on a 00:01 and that shouldn’t have been.
I have been reading your remark over and over an added it to my node (for test).
Like:
But whatever I try, setting the cover to a position (via home assistant) etc. I wanted to make my flow simpler and add that to the state node like this:
But I keep getting “NaN” at the node (with or without the json code)
Any thoughts would help 
my guess would be because you have state type as number and the state of the cover is becoming unavailable which is unable to parsed to a number so you get NaN
So this is only a cosmetic thing?
Yes I did, will tell you in september if you remind me
I’m back… a lot of things changed. Me, Node-Red, Homeassistant and my zwave (OZW to ZwaveJS) and my automation broke…
Whatever I try I can’t get it back working again and I ended up on my own post 
1st question: I want to simply check the state of a cover which is still reported under data.attributes.current_position. But for whatever reason this does not output correctly anymore after “a change”.
This is my node config:
@Kermit suggested to use
but that also does not do the trick here.
help?
This outputs false also:
data.attributes.current_position
Yes, got it
works!
The above posts helped me figure out my use case (Google Calendar offset attribute) with a little trial and error. To help anyone with an Event State node, this is what worked for me:
If state = JSONata AND Expression = $entity().attributes.offset_reached = true
State type = boolean
Output properties: msg.data = event data
Ignore state change event when: Uncheck → “Current state equals previous state” (NOTE - all were unchecked)
Note that the debug output shows following structure:
Object
> data
> new_state
> attributes
> offset_payload
Using your example, I’ve got my state comparison working. But I can’t figure out how to get the payload state that’s displayed at the bottom of the node (bottom of the screenshot below) to reflect that specific attribute. Would you happen to know what I need to adjust or is this just not supported?
The status of the node is always going to display the state of the entity. There is no way to change that.
bummer, that’d make troubleshooting easier if you can see the value you’re actually comparing to
Hi,
Have been struggling with the current state node for a while now, and maybe someone here could assist me.
I’m trying to check a attribute as the other before me.
Have this config:
This is the entity attributes:
But the state node still send out on the “false” output.
What am I missing?
I suspect that if Netflix in your attribute is a string, then the JSONata literal in your predicate should be ‘quoted’.
data.attributes.app_id = ‘Netflix’
If you are interested in the detail, then JSONata does not throw an error when it does not find anything. Netflix (unquoted so not a string literal) is treated as a key to lookup. Not finding that key, it returns nothing (just does not return anything at all), and in a predicate test something=nothing is always false, so the predicate will always return false.
OK - think I know what the issue is…
When using the JSONata rule on the left, the right hand side needs to return a predicate. Using JSONata for the expression the entity attribute data needs to be obtained using $entity() to get the data first.
$entity().attributes.app_id = ‘Netflix’
Sadly, that also didn’t work. 
Sadly I don’t have your media_player and I don’t have your entity data to examine, however setting this up for myself this morning it all works nicely.
The entity is a media player (nest hub, now playing radio).
Using the output properties, I am sending the entire ‘entity’ object to msg.data. In the debug window I can see all the msg.data, and the attributes, and the app_id which is a string ‘12F05308’.
In the JSONata expression for the JSONata test, the $entity().attributes.app_id gets the entity data, and the attribute value for app_id.
In the JSONata expression the left hand side evaluates to ‘12F05308’ as a string. The right hand side is the same, therefore this expression evaluates as true. The output is on the upper ‘true’ output.
I can only suggest that you would benefit from doing something similar so as to check the entity value (as seen here in Node-RED and not in HA) to ensure that your app_id is actually ‘Netflix’. If it is, then I cannot see why this will not work.
If you find that, in HA the entity looks as if app_id is ‘Netflix’, but in Node-RED the entity app_id is something else, then this is an issue with Node-RED not being updated with the HA state correctly.
I hope this helps!
Hey all 
Building my first flow and I want to know the actual start time of when my car is about to start, to be able to set charging of my home battery to a certain state.
Problem is that I don’t know how to fetch the start and end time…?
In my “automation” I would like the home battery to start charge at [Charging start time] and change my home battery status to “HOLD” at [Charging stop time:]. Or even better, start charging the home battery one hour before start time, and one hour after…
I could of course check if the status of the whole entity is running or off, but I think it’s better to actually get the specific time so I can plan ahead. Maybe if it would be possible to make the output of start and stop a value? Then I could use that value to decide when to start and stop charging of the home battery, and which mode that should be used.
Grateful for your help!
Use a time node with the property set to attributes["Charging start time"]. Then you can set the offset to any value you like.
Hi all!
I’m currently trying to solve a similar usecase than the creator of that thread. Basically, I have a cover for which I want to use the cover_position in a current state node. I set up the node as described by @sender, however I always get a NaN error when I execute the flow. Do you know what I’m doing wrong and help to solve that?
Here some additional information:
If I change the current state node to a simple string/state comparison and use a debug node to check what’s available, I see that the correct attribute is available, however I’m not able to ‘grap’ it…
Thank you for your help!
At a guess
You are looking at the entity “cover.rollo_wohnzimmer”, which has a state value of “open”
You have a ‘current state’ node, which you are triggering manually, and testing when the JSONata expression “$entity().attributes.current_position=70” is true (top output)
You have set your ‘State Type’ field to ‘number’
This field is used to take the raw value of the state, which is always a string, and either leave it as a string or turn it into something else (number or Boolean).
Since “open” is not a number, the state value output in your Output properties to msg.payload as ‘entity state’ will be NaN (short for Not a Number)
The fact that you are interested in the attribute value does not negate the way the node works in dealing with the entity state value. Suggest setting ‘State Type’ as string.
