Hello. I've just started out with Node-RED, and I love how easy it is to visualize the automations. Or at least I will love it when I'm finally able to use it properly.
Currently I'm trying to regulate the temperature in my kitchen by switching on/off a panel oven (using a Z-Wave wall plug) when evaluating a temperature. The data is available in Home Assistant, I'm just not sure how to utilize it in Node-RED.
The temperature is available as sensor.kitchen_temperature, and the wall plug is available as switch.telldus_tzwp102_plugin_switch_switch.
I thought about using the node-red-contrib-ramp-thermostat node for switching the wall plug. And I've gotten so far that I'm able to use the events:all node + switch node to filter out the state changed events. However, I don't know how to read out the temperature from the sensor and feed this into the thermostat node, and then control the wall plug using the thermostat node.
YOur best bet is to implement MQTT to send the info across to Node-Red.
Having said that - you are far better off on the HA forum and asking them for the how to on this as your data is originating from there and there are a lot of knowledgeable people on that forum re MQTT interactions.
Once you get it into MQTT as a valid stream of data you can do anything you want with it in NR
As a matter of interest, why do people want to use openHAB and node-RED together? I started with openHAB but the rules engine is horrible (at least for my brain) and when I found node-RED I very happily moved over completely to it.
But I see your point, given that all of your hardware is supported by Node-RED. But what do you do in regards to display and presenting controls, values and graphs on a front panel?
Oh yes, I was conflating the two. Sorry. I haven't used Home Assistant.
For controls, values and basic graphs I use node-red-dashboard (or node-red-contrib-uibuilder for more DIY front end).
For historical graphs with zoom etc then influxdb and grafana of course.
