修改为一下代码:
@TYPES.register("NitrogenDioxideSensor") #这里需要转换单位
class NitrogenDioxideSensor(AirQualitySensor):
"""Generate a NitrogenDioxideSensor accessory as NO2 sensor."""
def create_services(self) -> None:
"""Override the init function for PM 2.5 Sensor."""
serv_air_quality = self.add_preload_service(
SERV_AIR_QUALITY_SENSOR, [CHAR_NITROGEN_DIOXIDE_DENSITY]
)
self.char_quality = serv_air_quality.configure_char(CHAR_AIR_QUALITY, value=0)
self.char_density = serv_air_quality.configure_char(
CHAR_NITROGEN_DIOXIDE_DENSITY, value=0
)
@callback
def async_update_state(self, new_state: State) -> None:
"""Update accessory after state change.""" # 将新状态的值(假设以 mg/m3 为单位)转换为浮点数
density_mg = convert_to_float(new_state.state)
if density_mg is None:
return
density_ug = density_mg * 1000 # 转换公式:1 mg/m3 = 1000 µg/m3
if self.char_density.value != density_ug:
self.char_density.set_value(density_ug)
_LOGGER.debug("%s: Set density to %d", self.entity_id, density_ug)
air_quality = density_to_air_quality_nitrogen_dioxide(density_ug)
if self.char_quality.value != air_quality:
self.char_quality.set_value(air_quality)
_LOGGER.debug("%s: Set air_quality to %d", self.entity_id, air_quality)
def density_to_air_quality_nitrogen_dioxide(density: float) -> int:
"""Map nitrogen dioxide µg/m3 to HomeKit AirQuality level."""
if density <= 30:
return 1
if density <= 60:
return 2
if density <= 80:
return 3
if density <= 90:
return 4
return 5