src.bluetooth_sig.gatt.characteristics.body_composition_feature¶

Body Composition Feature characteristic implementation.

Classes¶

Name	Description
`BodyCompositionFeatureBits`	Body Composition Feature bit field constants.
`BodyCompositionFeatureCharacteristic`	Body Composition Feature characteristic (0x2A9B).
`BodyCompositionFeatureData`	Parsed data from Body Composition Feature characteristic.
`BodyCompositionFeatures`	Body Composition Feature flags as per Bluetooth SIG specification.
`HeightMeasurementResolution`	Height measurement resolution enumeration.
`MassMeasurementResolution`	Mass measurement resolution enumeration.

Module Contents¶

class src.bluetooth_sig.gatt.characteristics.body_composition_feature.BodyCompositionFeatureBits¶

Body Composition Feature bit field constants.

HEIGHT_RESOLUTION_BIT_WIDTH = 3¶

HEIGHT_RESOLUTION_START_BIT = 15¶

MASS_RESOLUTION_BIT_WIDTH = 4¶

MASS_RESOLUTION_START_BIT = 11¶

class src.bluetooth_sig.gatt.characteristics.body_composition_feature.BodyCompositionFeatureCharacteristic¶

Bases: src.bluetooth_sig.gatt.characteristics.base.BaseCharacteristic[BodyCompositionFeatureData]

Body Composition Feature characteristic (0x2A9B).

Used to indicate which optional features and measurements are supported by the body composition device. This is a read-only characteristic that describes device capabilities.

allow_variable_length: bool = False¶

expected_length: int = 4¶

max_length: int = 4¶

min_length: int = 4¶

class src.bluetooth_sig.gatt.characteristics.body_composition_feature.BodyCompositionFeatureData¶

Bases: msgspec.Struct

Parsed data from Body Composition Feature characteristic.

basal_metabolism_supported: bool¶

body_water_mass_supported: bool¶

fat_free_mass_supported: bool¶

features: BodyCompositionFeatures¶

height_measurement_resolution: HeightMeasurementResolution¶

height_supported: bool¶

impedance_supported: bool¶

mass_measurement_resolution: MassMeasurementResolution¶

multiple_users_supported: bool¶

muscle_mass_supported: bool¶

muscle_percentage_supported: bool¶

soft_lean_mass_supported: bool¶

timestamp_supported: bool¶

weight_supported: bool¶

class src.bluetooth_sig.gatt.characteristics.body_composition_feature.BodyCompositionFeatures¶

Bases: enum.IntFlag

Body Composition Feature flags as per Bluetooth SIG specification.

BASAL_METABOLISM_SUPPORTED = 4¶

BODY_WATER_MASS_SUPPORTED = 128¶

FAT_FREE_MASS_SUPPORTED = 32¶

HEIGHT_SUPPORTED = 1024¶

IMPEDANCE_SUPPORTED = 256¶

MULTIPLE_USERS_SUPPORTED = 2¶

MUSCLE_MASS_SUPPORTED = 8¶

MUSCLE_PERCENTAGE_SUPPORTED = 16¶

SOFT_LEAN_MASS_SUPPORTED = 64¶

TIMESTAMP_SUPPORTED = 1¶

WEIGHT_SUPPORTED = 512¶

class src.bluetooth_sig.gatt.characteristics.body_composition_feature.HeightMeasurementResolution¶

Bases: enum.IntEnum

Height measurement resolution enumeration.

M_0_001_OR_INCH_0_1 = 3¶

M_0_005_OR_INCH_0_5 = 2¶

M_0_01_OR_INCH_1 = 1¶

NOT_SPECIFIED = 0¶

class src.bluetooth_sig.gatt.characteristics.body_composition_feature.MassMeasurementResolution¶

Bases: enum.IntEnum

Mass measurement resolution enumeration.

KG_0_005_OR_LB_0_01 = 7¶

KG_0_01_OR_LB_0_02 = 6¶

KG_0_02_OR_LB_0_05 = 5¶

KG_0_05_OR_LB_0_1 = 4¶

KG_0_1_OR_LB_0_2 = 3¶

KG_0_2_OR_LB_0_5 = 2¶

KG_0_5_OR_LB_1 = 1¶

NOT_SPECIFIED = 0¶