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4.4
Light Sensor Device – EP 0x27
The ZCL “Measurement and Sensing” cluster in this section is implemented as a server cluster. Refer
to ZigBee Cluster Library Specification.
4.4.1
Illuminance Measurement - Cluster id 0x0400
The illuminance measurement cluster is described in ZigBee Cluster Library Specification section 4.2
4.4.1.1
Attribute
Id#
Name
type
range
Man
/Opt
Relevance and ref.
0x0000
MeasuredValue
Uint16
MinValue to
MaxValue
M
ZCL Reporting is hard
coded to every 2 minutes
0x0001
MinMeasuredValue
Uint16
0x0002 –
0xfffd
M
0x0002
MaxMeasuredValue
Uint16
0x0001 –
0xfffe
M
0x0004
LightSensorType
8-bit
Enumeration
0x00 – 0xff
O
4.4.1.1.1
MinMeasuredValue
The minimum Lux value supported by the device is 3 Lux. Converting 3 Lux into min measured value:
=10000*LOG(3)+1 = 4772
Min measured value in Hex = 0x1274
4.4.1.1.2
MaxMeasuredValue
The maximum Lux value supported by the device is 70.000 Lux. Converting 70.000 Lux into max
measured value: =10000*LOG(70000)+1 = 48452
Max measured value in Hex = 0xBD43