I’m struggling with this MOES 1 Gang dimmer that only shows a light entity on pairing but the brightness slider is missing, entity is not created.
However in the “Manage Zigbee device” screen I can read and write the current_level attribute and actually dim the light bulb connected to the dimmer.
How can I make the brighness slider showing up in the dashboard?
See and follow this to open a device support request → https://www.home-assistant.io/integrations/zha#how-to-add-support-for-new-and-unsupported-devices
Plus also read this for better understanding → https://www.home-assistant.io/integrations/zha#knowing-which-devices-are-supported
Summery; devices not showing all expected entities/attributes under ZHA device will usually need a custom ZHA Device Handler (also known as a “quirk”). If the entiry in quesion however is a non-standard function then developer might sometimes also need to extend the ZHA component code to expose a new type of entity/attribute under the device in ZHA UI https://github.com/home-assistant/core/tree/dev/homeassistant/components/zha
