131 lines
4.0 KiB
Python
131 lines
4.0 KiB
Python
"""
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Allows to configure a switch using a 433MHz module via GPIO on a Raspberry Pi.
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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_rf/
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"""
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import logging
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import voluptuous as vol
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from homeassistant.components.switch import SwitchDevice, PLATFORM_SCHEMA
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from homeassistant.const import (
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CONF_NAME, CONF_SWITCHES, EVENT_HOMEASSISTANT_STOP)
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import homeassistant.helpers.config_validation as cv
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REQUIREMENTS = ['rpi-rf==0.9.6']
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_LOGGER = logging.getLogger(__name__)
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CONF_CODE_OFF = 'code_off'
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CONF_CODE_ON = 'code_on'
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CONF_GPIO = 'gpio'
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CONF_PROTOCOL = 'protocol'
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CONF_PULSELENGTH = 'pulselength'
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CONF_SIGNAL_REPETITIONS = 'signal_repetitions'
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DEFAULT_PROTOCOL = 1
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DEFAULT_SIGNAL_REPETITIONS = 10
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SWITCH_SCHEMA = vol.Schema({
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vol.Required(CONF_CODE_OFF):
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vol.All(cv.ensure_list_csv, [cv.positive_int]),
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vol.Required(CONF_CODE_ON):
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vol.All(cv.ensure_list_csv, [cv.positive_int]),
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vol.Optional(CONF_PULSELENGTH): cv.positive_int,
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vol.Optional(CONF_SIGNAL_REPETITIONS,
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default=DEFAULT_SIGNAL_REPETITIONS): cv.positive_int,
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vol.Optional(CONF_PROTOCOL, default=DEFAULT_PROTOCOL): cv.positive_int,
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})
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Required(CONF_GPIO): cv.positive_int,
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vol.Required(CONF_SWITCHES): vol.Schema({cv.string: SWITCH_SCHEMA}),
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})
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# pylint: disable=unused-argument, import-error, no-member
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Find and return switches controlled by a generic RF device via GPIO."""
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import rpi_rf
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from threading import RLock
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gpio = config.get(CONF_GPIO)
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rfdevice = rpi_rf.RFDevice(gpio)
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rfdevice_lock = RLock()
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switches = config.get(CONF_SWITCHES)
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devices = []
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for dev_name, properties in switches.items():
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devices.append(
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RPiRFSwitch(
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properties.get(CONF_NAME, dev_name),
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rfdevice,
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rfdevice_lock,
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properties.get(CONF_PROTOCOL),
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properties.get(CONF_PULSELENGTH),
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properties.get(CONF_SIGNAL_REPETITIONS),
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properties.get(CONF_CODE_ON),
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properties.get(CONF_CODE_OFF)
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)
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)
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if devices:
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rfdevice.enable_tx()
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add_devices(devices)
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hass.bus.listen_once(
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EVENT_HOMEASSISTANT_STOP, lambda event: rfdevice.cleanup())
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class RPiRFSwitch(SwitchDevice):
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"""Representation of a GPIO RF switch."""
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def __init__(self, name, rfdevice, lock, protocol, pulselength,
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signal_repetitions, code_on, code_off):
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"""Initialize the switch."""
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self._name = name
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self._state = False
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self._rfdevice = rfdevice
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self._lock = lock
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self._protocol = protocol
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self._pulselength = pulselength
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self._code_on = code_on
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self._code_off = code_off
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self._rfdevice.tx_repeat = signal_repetitions
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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 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 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 _send_code(self, code_list, protocol, pulselength):
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"""Send the code(s) with a specified pulselength."""
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with self._lock:
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_LOGGER.info("Sending code(s): %s", code_list)
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for code in code_list:
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self._rfdevice.tx_code(code, protocol, pulselength)
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return True
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def turn_on(self, **kwargs):
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"""Turn the switch on."""
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if self._send_code(self._code_on, self._protocol, self._pulselength):
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self._state = True
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self.schedule_update_ha_state()
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def turn_off(self, **kwargs):
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"""Turn the switch off."""
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if self._send_code(self._code_off, self._protocol, self._pulselength):
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self._state = False
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self.schedule_update_ha_state()
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