Unable to do simple math in my rule

[hafniumzinc (T)]

This doesn’t answer your specific question, but I have also integrated WLED via MQTT:

WLED control without the binding

Foreword I was interested in controlling WLED without using the binding. In the end I learned a bit more about: Javascript transforms XML (XPATH) transforms Chaining multiple transforms Jython personal functions If you want easy setup, don’t copy me - use the binding from here WLed: A binding for controlling LED strips and strings from an opensource esp8266 project and forget you ever saw this post. This post (#1) shows my final setup. The next post (#2) shows my first attempt in all its glo…

Colorpicker works without rules, though uses a couple of JS transformations!