diff --git a/homeassistant/components/sensor/dht.py b/homeassistant/components/sensor/dht.py index a6fc9b10bee..1f24a0ee667 100644 --- a/homeassistant/components/sensor/dht.py +++ b/homeassistant/components/sensor/dht.py @@ -26,6 +26,8 @@ _LOGGER = logging.getLogger(__name__) CONF_PIN = 'pin' CONF_SENSOR = 'sensor' +CONF_HUMIDITY_OFFSET = 'humidity_offset' +CONF_TEMPERATURE_OFFSET = 'temperature_offset' DEFAULT_NAME = 'DHT Sensor' @@ -45,6 +47,10 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({ vol.Optional(CONF_MONITORED_CONDITIONS, default=[]): vol.All(cv.ensure_list, [vol.In(SENSOR_TYPES)]), vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string, + vol.Optional(CONF_TEMPERATURE_OFFSET, default=0): + vol.All(vol.Coerce(float), vol.Range(min=-100, max=100)), + vol.Optional(CONF_HUMIDITY_OFFSET, default=0): + vol.All(vol.Coerce(float), vol.Range(min=-100, max=100)) }) @@ -61,6 +67,8 @@ def setup_platform(hass, config, add_devices, discovery_info=None): } sensor = available_sensors.get(config.get(CONF_SENSOR)) pin = config.get(CONF_PIN) + temperature_offset = config.get(CONF_TEMPERATURE_OFFSET) + humidity_offset = config.get(CONF_HUMIDITY_OFFSET) if not sensor: _LOGGER.error("DHT sensor type is not supported") @@ -73,7 +81,8 @@ def setup_platform(hass, config, add_devices, discovery_info=None): try: for variable in config[CONF_MONITORED_CONDITIONS]: dev.append(DHTSensor( - data, variable, SENSOR_TYPES[variable][1], name)) + data, variable, SENSOR_TYPES[variable][1], name, + temperature_offset, humidity_offset)) except KeyError: pass @@ -83,13 +92,16 @@ def setup_platform(hass, config, add_devices, discovery_info=None): class DHTSensor(Entity): """Implementation of the DHT sensor.""" - def __init__(self, dht_client, sensor_type, temp_unit, name): + def __init__(self, dht_client, sensor_type, temp_unit, name, + temperature_offset, humidity_offset): """Initialize the sensor.""" self.client_name = name self._name = SENSOR_TYPES[sensor_type][0] self.dht_client = dht_client self.temp_unit = temp_unit self.type = sensor_type + self.temperature_offset = temperature_offset + self.humidity_offset = humidity_offset self._state = None self._unit_of_measurement = SENSOR_TYPES[sensor_type][1] self.update() @@ -112,18 +124,24 @@ class DHTSensor(Entity): def update(self): """Get the latest data from the DHT and updates the states.""" self.dht_client.update() + temperature_offset = self.temperature_offset + humidity_offset = self.humidity_offset data = self.dht_client.data if self.type == SENSOR_TEMPERATURE: - temperature = round(data[SENSOR_TEMPERATURE], 1) + temperature = data[SENSOR_TEMPERATURE] + _LOGGER.debug("Temperature %.1f \u00b0C + offset %.1f", + temperature, temperature_offset) if (temperature >= -20) and (temperature < 80): - self._state = temperature + self._state = round(temperature + temperature_offset, 1) if self.temp_unit == TEMP_FAHRENHEIT: self._state = round(celsius_to_fahrenheit(temperature), 1) elif self.type == SENSOR_HUMIDITY: - humidity = round(data[SENSOR_HUMIDITY], 1) + humidity = data[SENSOR_HUMIDITY] + _LOGGER.debug("Humidity %.1f%% + offset %.1f", + humidity, humidity_offset) if (humidity >= 0) and (humidity <= 100): - self._state = humidity + self._state = round(humidity + humidity_offset, 1) class DHTClient(object):