Description of Change

This pull request introduces significant improvements to the Zigbee switch and color dimmer switch functionality, focusing on enhanced state polling, attribute readback, and callback handling for light state, level, and color changes. The changes improve how the switch tracks and reports the state of bound lights, and add flexible mechanisms for polling and responding to changes in light attributes.

Enhanced Zigbee Switch State Polling and Reporting:

• Added a periodic task (periodicTask) inZigbee_On_Off_Switch.ino to poll the light state every second and print bound devices every 10 seconds, improving real-time tracking of connected lights.[1][2]
• Introduced theonLightStateChange callback andlight_state tracking to log state changes and ensure the application responds only to actual changes.[1][2]

Expanded ZigbeeColorDimmerSwitch Attribute Handling and Callbacks:

• Implemented multiplegetLightState,getLightLevel, andgetLightColor methods to support polling light state, level, and color for various addressing modes (group, endpoint, IEEE address), enabling more flexible device management.[1][2]
• Added callback setters (onLightStateChange,onLightLevelChange,onLightColorChange, etc.) to allow users to register handlers for state, level, and color changes, both with and without source information.[1][2]
• Enhanced the attribute readback logic inzbAttributeRead, including robust parsing and callback invocation for ON/OFF, level, and color attributes, with proper handling of XY and HS color updates and conversion to RGB.

These changes collectively make the Zigbee switch and color dimmer switch more responsive, extensible, and easier to integrate into applications requiring real-time light state monitoring and control.

Test Scenarios

Tested with Updated On/Off switch + Light example and Customized ColorDimmableSwitch + ColorDimmableLight examples.

Related links

Closes#11886