add arduino switch platform
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homeassistant/components/switch/arduino.py
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93
homeassistant/components/switch/arduino.py
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"""
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homeassistant.components.switch.arduino
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Support for switching Arduino pins on and off. So fare only digital pins are
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supported.
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Configuration:
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switch:
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platform: arduino
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pins:
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11:
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name: Fan Office
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type: digital
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12:
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name: Light Desk
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type: digital
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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: 'digital'.
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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.components.switch import SwitchDevice
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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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switches = []
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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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switches.append(ArduinoSwitch(pin.get('name'),
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pinnum,
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pin.get('type')))
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add_devices(switches)
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class ArduinoSwitch(SwitchDevice):
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""" Represents an Arduino Switch. """
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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 = 'out'
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self._state = False
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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 name(self):
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""" Get the name of the pin. """
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return self._name
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@property
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def is_on(self):
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""" Returns True if pin is high/on. """
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return self._state
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def turn_on(self):
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""" Turns the pin to high/on. """
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self._state = True
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arduino.BOARD.set_digital_out_high(self._pin)
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def turn_off(self):
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""" Turns the pin to low/off. """
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self._state = False
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arduino.BOARD.set_digital_out_low(self._pin)
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