Convert Loxone color string to Hue RGB

README.md

This flow converts a Loxone hsv(...) or temp(...) string from a LightControllerV2 directly to a RGB array.

You will need these nodes:

• node-red-contrib-loxone
• node-red-contrib-huemagic
• node-red-contrib-color-convert

In Loxone:

• Configure a LightControllerV2
• Set the outputs to RGB

In Node-RED

• Place a Loxone "control in" node and configure it with the LightControllerV2 and state color
• Place a "Hue Lamp" or "Hue Group" node
• Connect both with this flow. Loxone on the input and Hue on the output.

Loxone and Hue are now connected. The color and brightness setting in Loxone is then transferred to Hue.

flow.json

[{"id":"7fa10a6e.8bda14","type":"subflow","name":"Loxone color string to Hue RGB","info":"","category":"","in":[{"x":327.5,"y":307,"wires":[{"id":"616f6d48.4176b4"}]}],"out":[{"x":1237.5,"y":319,"wires":[{"id":"21e6122.56392ee","port":0},{"id":"527b719d.025c7","port":0}]}]},{"id":"52121dad.3e9224","type":"color-convert","z":"7fa10a6e.8bda14","input":"hsv","output":"rgb","outputType":"array","x":898.5,"y":251,"wires":[["21e6122.56392ee"]]},{"id":"c0a01e2b.be63","type":"function","z":"7fa10a6e.8bda14","name":"split hsv","func":"msg.payload = msg.payload.replace(\"hsv(\", \"\").replace(\")\", \"\").split(\",\");\nflow.set(\"brightness\", msg.payload[2]);\nreturn msg;","outputs":1,"noerr":0,"x":732.5,"y":251,"wires":[["52121dad.3e9224"]]},{"id":"21e6122.56392ee","type":"function","z":"7fa10a6e.8bda14","name":"RGB > msg","func":"var brightness = flow.get(\"brightness\");\nif (brightness == '0') {\n  return { payload: { on: false } };\n}\nreturn { payload: { on: true, rgb: msg.payload, brightness: brightness } };","outputs":1,"noerr":0,"x":1078.5,"y":251,"wires":[[]]},{"id":"616f6d48.4176b4","type":"switch","z":"7fa10a6e.8bda14","name":"hsv or temp","property":"payload","propertyType":"msg","rules":[{"t":"cont","v":"hsv(","vt":"str"},{"t":"cont","v":"temp(","vt":"str"}],"checkall":"true","repair":false,"outputs":2,"x":518.5,"y":310,"wires":[["c0a01e2b.be63"],["fd3e393c.a0cbb8"]]},{"id":"fd3e393c.a0cbb8","type":"function","z":"7fa10a6e.8bda14","name":"spilt temp","func":"msg.payload = msg.payload.replace(\"temp(\", \"\").replace(\")\", \"\").split(\",\");\nreturn msg;","outputs":1,"noerr":0,"x":730.5,"y":368,"wires":[["527b719d.025c7"]]},{"id":"527b719d.025c7","type":"function","z":"7fa10a6e.8bda14","name":"Temp > RGB > msg","func":"var brightness = parseInt(msg.payload[0]);\nif (brightness == '0') {\n  return { payload: { on: false } };\n}\n\nvar kelvin = parseFloat(msg.payload[1]);\nvar temp = kelvin / 100;\nvar red, green, blue;\n\nif (temp <= 66) { \n  red = 255; \n\n  green = temp;\n  green = 99.4708025861 * Math.log(green) - 161.1195681661;\n\n  if (temp <= 19) {\n    blue = 0;\n  } \n  else {\n    blue = temp - 10;\n    blue = 138.5177312231 * Math.log(blue) - 305.0447927307;\n  }\n} \nelse {\n  red = temp - 60;\n  red = 329.698727446 * Math.pow(red, -0.1332047592);\n\n  green = temp - 60;\n  green = 288.1221695283 * Math.pow(green, -0.0755148492 );\n\n  blue = 255;\n\n}\n\nred = Math.round(Math.min(Math.max(red, 0), 255));\ngreen = Math.round(Math.min(Math.max(green, 0), 255));\nblue = Math.round(Math.min(Math.max(blue, 0), 255));\n\nreturn { payload: { on: true, rgb: [ red, green, blue ], brightness: brightness } };","outputs":1,"noerr":0,"x":920.5,"y":368,"wires":[[]]}]

You don’t need my flow for that. Simply put a function between the nodes of Loxone and Hue with the following script: var newMsg = { payload: { brightness: msg.payload } }; return newMsg;

Hi!
Thanks a lot for the converter. This works great.

I'm wondering if you have it by chance also into to other direction - Hue RGB to Loxone. I want to update/synch changes from e.g. the hue app or the remote control in the loxone ControlOut of the LightController.

Do you and how do you solve this?

Sorry, I haven’t made this. Please be careful about loops: Hue triggers change in Loxone -> Loxone triggers change in Hue -> Hue triggers change in Loxone -> and so on… Good luck!

Great work on the converter !!!

Do you have a converter for the Hue Ambiance Lamps?

Loxone sends out "temp(0,2700)"

0 being brightness
2700 being the colour temperature

Thanks

Yes, hsv(...) and temp(...) is supported.

Thanks sstrot :-) but for the Philips HUE Ambiance lamps (Warm White / Cool White only/ No RGB) it does not work

I had to use this flow to make it work:
https://discourse.nodered.org/t/node-red-loxone-philips-hue-ambiance/55617

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