Device type light write back
Closed this issue · 8 comments
Hello,
one question about how to inform the google device about a manual change on a device.
I my case a dimmer.
So if I turn it on or off or change the brightness I get a value of the brightness.
msg.payload : number
1
So how do I write this information back to the device ? Same payload as if it's triggered von google home app ?
Tried now with
Leads to that
{"brightness":0,"on":false,"online":true}
But this is not updating the device (and not the values in google home app)
Hi @T1mey,
Can you inform in which way Node Red receives the data.
How does the received message look.
In my case, I receive the data from a Shelly Dimmer 2.
If I activate the dimmer the MQTT receives the following data:
ison: true source: "http" has_timer: false timer_started: 0 timer_duration: 0 timer_remaining: 0 mode: "white" brightness: 20 transition: 0
If I switch the dimmer off:
ison: false source: "http" has_timer: false timer_started: 0 timer_duration: 0 timer_remaining: 0 mode: "white" brightness: 20 transition: 0
In this case the intersting payloads are:
msg.payload.ison (true|false)
msg.payload.brightness
But this will depend on your device. What do you receive? From what type of device (dimmer)?
The above data is sent to a "Function" node, which has the following contents:
if (msg.payload.ison === true) { msg.payload = { "brightness": msg.payload.brightness, "on": true, "online": true } } else if (msg.payload.ison === false) { msg.payload = { "on": false, "online": true } } return msg;
This works for me and the Google Dimmer node will receive that message.
Regards
One Remark.
It is probably better to raise such a question on the Node-RED forum page instead of Github in the future.
https://discourse.nodered.org/
There is a lot of support on all issues.
My device is a homematic dimmer.
So I receive from the google node:
{"online":true,"brightness":74,"on":true}
Then I scale the brightness and send it to my device. This is working well
I I turn off the dimmer I receive
msg.payload : number
1
and transform that payload back to the format I received ....
Hello @T1mey,
As I understand correctly, you receive, if you switch off the dimmer, only msg.payload (number:1).
Looks strange to receive a 1, in case you switch off the device.
But okay.
In that case I would send something like:
if (msg.payload === 1) { msg.payload = { "on": false, "online": true } } return msg;
As you said that it is a Homematic device, I suggest you take a look at:
https://flows.nodered.org/node/node-red-contrib-homematic and at:
https://github.com/firsttris/node-red-contrib-homematic
Or:
https://flows.nodered.org/node/node-red-contrib-ccu
Regards
I tried now a hardcoded json object but wit no effect.
So I don't think it's a node-red-contrib-homematic probem. It's more a problem of node-red-contrib-google-smarthome?
Another thing.... Should this be green ?
Another thing.... Should this be green ?
No, it shouldn't. This is always yellow.
I'm not sure if I understand your problem.
So you are sending in messages into the Google device node, but neither the status message on the node nor the Google Home app is updated?
It also doesn't work if you inject hardcoded data like in this example?
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Do you see any messages in Node-RED's debug panel?
I found my failure ... had the checkbox "Filter incoming messages by topic" checked ...
Thanks 2 all ...
I'm glad you got it fixed.