027266ed8b
When switches are configured to use inverted logic, the GPIO pins initial state has to be inverted as well (set to HIGH)
69 lines
1.9 KiB
Python
69 lines
1.9 KiB
Python
"""
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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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"""Setup 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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"""Representation of a Raspberry Pi GPIO."""
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def __init__(self, name, port, invert_logic):
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"""Initialize the pin."""
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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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rpi_gpio.write_output(self._port, 1 if self._invert_logic else 0)
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@property
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def name(self):
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"""Return 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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"""Return 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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