99 lines
2.6 KiB
Python
99 lines
2.6 KiB
Python
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"""
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Support for building a Raspberry Pi cover in HA.
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Instructions for building the controller can be found here
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https://github.com/andrewshilliday/garage-door-controller
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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/cover.rpi_gpio/
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"""
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import logging
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from time import sleep
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import voluptuous as vol
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from homeassistant.components.cover import CoverDevice
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import homeassistant.components.rpi_gpio as rpi_gpio
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import homeassistant.helpers.config_validation as cv
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DEPENDENCIES = ['rpi_gpio']
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_LOGGER = logging.getLogger(__name__)
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_COVERS_SCHEMA = vol.All(
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cv.ensure_list,
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[
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vol.Schema({
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'name': str,
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'relay_pin': int,
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'state_pin': int,
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})
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]
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)
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PLATFORM_SCHEMA = vol.Schema({
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'platform': str,
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vol.Required('covers'): _COVERS_SCHEMA,
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})
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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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"""Setup the cover platform."""
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covers = []
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covers_conf = config.get('covers')
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for cover in covers_conf:
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covers.append(RPiGPIOCover(cover['name'], cover['relay_pin'],
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cover['state_pin']))
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add_devices(covers)
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# pylint: disable=abstract-method
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class RPiGPIOCover(CoverDevice):
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"""Representation of a Raspberry cover."""
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def __init__(self, name, relay_pin, state_pin):
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"""Initialize the cover."""
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self._name = name
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self._state = False
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self._relay_pin = relay_pin
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self._state_pin = state_pin
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rpi_gpio.setup_output(self._relay_pin)
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rpi_gpio.setup_input(self._state_pin, 'UP')
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rpi_gpio.write_output(self._relay_pin, True)
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@property
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def unique_id(self):
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"""Return the ID of this cover."""
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return "{}.{}".format(self.__class__, self._name)
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@property
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def name(self):
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"""Return the name of the cover if any."""
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return self._name
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def update(self):
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"""Update the state of the cover."""
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self._state = rpi_gpio.read_input(self._state_pin)
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@property
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def is_closed(self):
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"""Return true if cover is closed."""
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return self._state
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def _trigger(self):
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"""Trigger the cover."""
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rpi_gpio.write_output(self._relay_pin, False)
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sleep(0.2)
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rpi_gpio.write_output(self._relay_pin, True)
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def close_cover(self):
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"""Close the cover."""
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if not self.is_closed:
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self._trigger()
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def open_cover(self):
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"""Open the cover."""
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if self.is_closed:
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self._trigger()
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