Coverage for src / bluetooth_sig / gatt / characteristics / luminous_efficacy.py: 100%

1"""Luminous Efficacy characteristic (0x2BF6).""" 

2 

3from __future__ import annotations 

4 

5from .base import BaseCharacteristic 

6from .templates import ScaledUint16Template 

7 

8 

9class LuminousEfficacyCharacteristic(BaseCharacteristic[float]): 

10 """Luminous Efficacy characteristic (0x2BF6). 

11 

12 org.bluetooth.characteristic.luminous_efficacy 

13 

14 Luminous efficacy in lumens per watt with a resolution of 0.1. 

15 M=1, d=-1, b=0 → scale factor 0.1. 

16 Range: 0-1800. A value of 0xFFFF represents 'value is not known'. 

17 

18 Raises: 

19 SpecialValueDetectedError: If raw value is a sentinel (e.g. 0xFFFF). 

20 """ 

21 

22 _template = ScaledUint16Template.from_letter_method(M=1, d=-1, b=0)