88 lines
2.1 KiB
Python
88 lines
2.1 KiB
Python
"""
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homeassistant.components.sensor.arduino
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Support for getting information from Arduino pins. Only analog pins are
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supported.
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Configuration:
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sensor:
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platform: arduino
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pins:
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7:
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name: Door switch
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type: analog
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0:
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name: Brightness
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type: analog
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Variables:
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pins
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*Required
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An array specifying the digital pins to use on the Arduino board.
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These are the variables for the pins array:
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name
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*Required
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The name for the pin that will be used in the frontend.
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type
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*Required
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The type of the pin: 'analog'.
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"""
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import logging
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import homeassistant.components.arduino as arduino
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from homeassistant.helpers.entity import Entity
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from homeassistant.const import DEVICE_DEFAULT_NAME
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DEPENDENCIES = ['arduino']
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_LOGGER = logging.getLogger(__name__)
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def setup_platform(hass, config, add_devices, discovery_info=None):
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""" Sets up the Arduino platform. """
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# Verify that Arduino board is present
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if arduino.BOARD is None:
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_LOGGER.error('A connection has not been made to the Arduino board.')
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return False
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sensors = []
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pins = config.get('pins')
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for pinnum, pin in pins.items():
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if pin.get('name'):
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sensors.append(ArduinoSensor(pin.get('name'),
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pinnum,
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'analog'))
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add_devices(sensors)
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class ArduinoSensor(Entity):
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""" Represents an Arduino Sensor. """
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def __init__(self, name, pin, pin_type):
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self._pin = pin
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self._name = name or DEVICE_DEFAULT_NAME
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self.pin_type = pin_type
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self.direction = 'in'
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self._value = None
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arduino.BOARD.set_mode(self._pin, self.direction, self.pin_type)
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@property
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def state(self):
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""" Returns the state of the sensor. """
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return self._value
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@property
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def name(self):
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""" Get the name of the sensor. """
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return self._name
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def update(self):
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""" Get the latest value from the pin. """
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self._value = arduino.BOARD.get_analog_inputs()[self._pin][1]
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