[New device support]: ICZB-IW21SW from icasa

Link

https://www.icasa.io/dimmersswitches

Database entry

{"id":52,"type":"Router","ieeeAddr":"0xdc8e95fffef5e887","nwkAddr":28877,"manufId":4644,"manufName":"icasa","powerSource":"Mains (single phase)","modelId":"ICZB-IW21SW","epList":[1,242],"endpoints":{"1":{"profId":260,"epId":1,"devId":256,"inClusterList":[0,3,4,5,6,2821,4096],"outClusterList":[25],"clusters":{"genBasic":{"attributes":{"appVersion":0,"stackVersion":0,"modelId":"ICZB-IW21SW","manufacturerName":"icasa","powerSource":1,"zclVersion":3,"hwVersion":1,"dateCode":"NULL","swBuildId":"2.9.2_r54"}},"genOnOff":{"attributes":{"onOff":0}},"genOta":{"attributes":{"currentFileVersion":54}}},"binds":[{"cluster":6,"type":"endpoint","deviceIeeeAddress":"0x00124b0031dd2541","endpointID":1}],"configuredReportings":[{"cluster":6,"attrId":0,"minRepIntval":0,"maxRepIntval":65000,"repChange":1}],"meta":{}},"242":{"profId":41440,"epId":242,"devId":102,"inClusterList":[33],"outClusterList":[33],"clusters":{},"binds":[],"configuredReportings":[],"meta":{}}},"appVersion":0,"stackVersion":0,"hwVersion":1,"dateCode":"NULL","swBuildId":"2.9.2_r54","zclVersion":3,"interviewCompleted":true,"interviewState":"SUCCESSFUL","meta":{"configured":"0.0.0"},"lastSeen":1786378520037}

Zigbee2MQTT version

2.13.0 (fcbb7ff44bdc05a16e95d3472a81d110646cc17b
)

External definition

import * as m from 'zigbee-herdsman-converters/lib/modernExtend';

export default {
    zigbeeModel: ['ICZB-IW21SW'],
    model: 'ICZB-IW21SW',
    vendor: 'icasa',
    description: 'Automatically generated definition',
    extend: [m.onOff({"powerOnBehavior":false})],
};

What does/doesn't work with the external definition?

What works: Linkquality and State of the switch.
What doesn't work: all energy metering functionality

Notes

software_build_id: 2.9.2_r54
date_code: NULL
endpoints:

{"1":{"bindings":[{"cluster":"genOnOff","target":{"endpoint":1,"ieee_address":"0x00124b0031dd2541","type":"endpoint"}}],"clusters":{"input":["genBasic","genIdentify","genGroups","genScenes","genOnOff","haDiagnostic","touchlink"],"output":["genOta"]},"configured_reportings":[{"attribute":"onOff","cluster":"genOnOff","maximum_report_interval":65000,"minimum_report_interval":0,"reportable_change":1}],"scenes":[]},"242":{"bindings":[],"clusters":{"input":["greenPower"],"output":["greenPower"]},"configured_reportings":[],"scenes":[]}}

Start by comparing the supplied external definition for ICZB-IW21SW with the database entry, especially its endpoint clusters and reported attributes. Determine how energy metering is exposed by this device, then verify that the completed definition retains link quality and switch state while providing the required metering functionality.