The ZLL specification defines a set of functionalities to be supported in a dimmable light. This is organized as a set(cluster) of variables(attributes) and control commands. Typical attributes include on/off state of the light and brightness level. These attributes can be controlled from the remote using commands to adjust the dimming, on/off state of the light.
The table below lists the clusters supported on the light. Each cluster has a set of attributes and commands.
Example: Level Control cluster has an attribute named
CurrentLevel which
can be read from the remote control. The remote control can use commands such as
step to change the
brightness level of the light. The step command modifies the
CurrentLevel value
on the light.
| Dimmable Light Device (ID: 0x0100) | |
|---|---|
| Server Clusters | Client Clusters |
| Basic | Basic |
| Commissioning | NA |
| Identify | NA |
| Groups | NA |
| Scenes | NA |
| Level Control | NA |
| On/Off | NA |
Note: Over-the-Air Upgrade (OTAU) Cluster is also supported in BitCloud, however the hardware, ATSAMR21-LED-Driver, does not have an external flash on board to save the updated firmware.