With just this configuration, you can have the E2002 controller from IKEA (4 buttons) connected to the livingroom light and be able to change the brightness and color temperature or color.
livingroom_controller:
  module: controllerx
  class: E2002LightController
  controller: livingroom_controller
  integration:
    name: z2m
    listen_to: mqtt
  light: light.livingroomYou can check the documentation in here.
If you have any question, you can either open an issue or comment in this topic from the Home Assistant community forum.
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If you want to contribute to this project, check CONTRIBUTING.md.
