70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
"""
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homeassistant.components.switch.rpi_gpio
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Allows to configure a switch using RPi GPIO.
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For more details about this platform, please refer to the documentation at
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https://home-assistant.io/components/switch.rpi_gpio/
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"""
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import logging
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import homeassistant.components.rpi_gpio as rpi_gpio
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from homeassistant.const import DEVICE_DEFAULT_NAME
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from homeassistant.helpers.entity import ToggleEntity
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DEFAULT_INVERT_LOGIC = False
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DEPENDENCIES = ['rpi_gpio']
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_LOGGER = logging.getLogger(__name__)
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# pylint: disable=unused-argument
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def setup_platform(hass, config, add_devices, discovery_info=None):
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""" Sets up the Raspberry PI GPIO devices. """
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invert_logic = config.get('invert_logic', DEFAULT_INVERT_LOGIC)
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switches = []
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ports = config.get('ports')
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for port, name in ports.items():
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switches.append(RPiGPIOSwitch(name, port, invert_logic))
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add_devices(switches)
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class RPiGPIOSwitch(ToggleEntity):
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""" Represents a switch that can be toggled using Raspberry Pi GPIO. """
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def __init__(self, name, port, invert_logic):
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self._name = name or DEVICE_DEFAULT_NAME
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self._port = port
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self._invert_logic = invert_logic
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self._state = False
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rpi_gpio.setup_output(self._port)
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@property
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def name(self):
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""" The name of the switch. """
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return self._name
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@property
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def should_poll(self):
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""" No polling needed. """
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return False
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@property
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def is_on(self):
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""" True if device is on. """
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return self._state
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def turn_on(self):
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""" Turn the device on. """
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rpi_gpio.write_output(self._port, 0 if self._invert_logic else 1)
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self._state = True
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self.update_ha_state()
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def turn_off(self):
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""" Turn the device off. """
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rpi_gpio.write_output(self._port, 1 if self._invert_logic else 0)
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self._state = False
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self.update_ha_state()
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