class Matter::Cluster::PressureMeasurementCluster

• Matter::Cluster::PressureMeasurementCluster
• Matter::Cluster::Base
• Reference
• Object

Overview

Pressure Measurement Cluster (0x0403)

Provides an interface to pressure measurement functionality, including configuration and provision of notifications of pressure measurements.

Pressure values are expressed in tenths of kilopascals (0.1 kPa): MeasuredValue = 10 x Pressure [kPa]

For example, 1013 represents 101.3 kPa (standard atmospheric pressure).

Specification: Matter 1.4 § 2.4

Defined in:

Constant Summary

ATTR_MAX_MEASURED_VALUE = 2_u32

ATTR_MEASURED_VALUE = 0_u32

Attributes

ATTR_MIN_MEASURED_VALUE = 1_u32

ATTR_TOLERANCE = 3_u32

CLUSTER_ID = 1027_u32

MAX_PRESSURE = 32767_i16

MIN_PRESSURE = -32768_i16

Pressure limits (in 0.1 kPa) Range: Int16 covers -3276.7 kPa to +3276.6 kPa

Constructors

• .new(endpoint_id : DataType::EndpointNumber, measured_value : Int16 | Nil = nil, min_measured_value : Int16 | Nil = nil, max_measured_value : Int16 | Nil = nil, tolerance : UInt16 | Nil = nil)

Class Method Summary

• .cluster_id

  Pressure Measurement Cluster (0x0403)

• .from_hectopascals(value : Float64) : Int16

  Convert from hPa/mbar (Float) to 0.1 kPa (Int16)

• .from_inhg(value : Float64) : Int16

  Convert from inches of mercury (Float) to 0.1 kPa (Int16)

• .from_kilopascals(value : Float64) : Int16

  Convert from kPa (Float) to 0.1 kPa (Int16)

• .from_mmhg(value : Float64) : Int16

  Convert from mmHg (Float) to 0.1 kPa (Int16)

• .to_hectopascals(value : Int16) : Float64

  Convert from 0.1 kPa to hPa/mbar (Float) 1 kPa = 10 hPa = 10 mbar

• .to_inhg(value : Int16) : Float64

  Convert from 0.1 kPa to inches of mercury (Float) 1 kPa = 0.2953 inHg

• .to_kilopascals(value : Int16) : Float64

  Convert from 0.1 kPa to kPa (Float)

• .to_mmhg(value : Int16) : Float64

  Convert from 0.1 kPa to mmHg (Float) 1 kPa = 7.50062 mmHg

Instance Method Summary

• #attributes : Array(AttributeMetadata)

  Get all attribute metadata

• #commands : Array(CommandMetadata)

  Get all command metadata

• #max_measured_value : Int16 | Nil

  Maximum measurable pressure (in 0.1 kPa), or nil if unknown

• #max_measured_value=(max_measured_value : Int16 | Nil)

  Maximum measurable pressure (in 0.1 kPa), or nil if unknown

• #measured_value : Int16 | Nil

  Current measured pressure (in 0.1 kPa), or nil if unknown

• #measured_value=(measured_value : Int16 | Nil)

  Current measured pressure (in 0.1 kPa), or nil if unknown

• #min_measured_value : Int16 | Nil

  Minimum measurable pressure (in 0.1 kPa), or nil if unknown

• #min_measured_value=(min_measured_value : Int16 | Nil)

  Minimum measurable pressure (in 0.1 kPa), or nil if unknown

• #name : String

  Get cluster name

• #on_pressure_changed(&block : Int16 | Nil, Int16 | Nil -> Nil)
• #read_attribute(attribute_id : UInt32) : Bytes | InteractionModel::Status

  Read an attribute value

• #tolerance : UInt16 | Nil

  Measurement tolerance (in 0.1 kPa), optional

• #tolerance=(tolerance : UInt16 | Nil)

  Measurement tolerance (in 0.1 kPa), optional

• #update_pressure(value : Int16 | Nil)

  Update the measured pressure value

Constructor Detail

Class Method Detail

Instance Method Detail