src.bluetooth_sig.gatt.characteristics.weight_measurement

Weight Measurement characteristic implementation.

Classes

Name	Description
WeightMeasurementCharacteristic	Weight Measurement characteristic (0x2A9D).
WeightMeasurementData	Parsed weight measurement data.
WeightMeasurementFlags	Weight Measurement flags as per Bluetooth SIG specification.

Module Contents

class src.bluetooth_sig.gatt.characteristics.weight_measurement.WeightMeasurementCharacteristic

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

Weight Measurement characteristic (0x2A9D).

Used to transmit weight measurement data with optional fields. Supports metric/imperial units, timestamps, user ID, BMI, and height.

allow_variable_length: bool = True

max_length: int = 21

min_length: int = 3

class src.bluetooth_sig.gatt.characteristics.weight_measurement.WeightMeasurementData

Bases: msgspec.Struct

Parsed weight measurement data.

bmi: float | None = None

flags: WeightMeasurementFlags

height: float | None = None

height_unit: bluetooth_sig.types.units.HeightUnit | None = None

measurement_units: bluetooth_sig.types.units.MeasurementSystem

timestamp: datetime.datetime | None = None

user_id: int | None = None

weight: float

weight_unit: bluetooth_sig.types.units.WeightUnit

class src.bluetooth_sig.gatt.characteristics.weight_measurement.WeightMeasurementFlags

Bases: enum.IntFlag

Weight Measurement flags as per Bluetooth SIG specification.

BMI_PRESENT = 8

HEIGHT_PRESENT = 16

IMPERIAL_UNITS = 1

TIMESTAMP_PRESENT = 2

USER_ID_PRESENT = 4