mirror of
https://github.com/home-assistant/core
synced 2024-08-02 23:40:32 +02:00
110 lines
3.3 KiB
Python
110 lines
3.3 KiB
Python
"""Support for binary sensor using RPi GPIO."""
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from __future__ import annotations
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import asyncio
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import voluptuous as vol
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from homeassistant.components import rpi_gpio
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from homeassistant.components.binary_sensor import PLATFORM_SCHEMA, BinarySensorEntity
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from homeassistant.const import DEVICE_DEFAULT_NAME
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from homeassistant.core import HomeAssistant
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.reload import setup_reload_service
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from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
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from . import DOMAIN, PLATFORMS
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CONF_BOUNCETIME = "bouncetime"
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CONF_INVERT_LOGIC = "invert_logic"
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CONF_PORTS = "ports"
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CONF_PULL_MODE = "pull_mode"
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DEFAULT_BOUNCETIME = 50
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DEFAULT_INVERT_LOGIC = False
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DEFAULT_PULL_MODE = "UP"
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_SENSORS_SCHEMA = vol.Schema({cv.positive_int: cv.string})
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
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{
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vol.Required(CONF_PORTS): _SENSORS_SCHEMA,
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vol.Optional(CONF_BOUNCETIME, default=DEFAULT_BOUNCETIME): cv.positive_int,
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vol.Optional(CONF_INVERT_LOGIC, default=DEFAULT_INVERT_LOGIC): cv.boolean,
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vol.Optional(CONF_PULL_MODE, default=DEFAULT_PULL_MODE): cv.string,
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}
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)
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def setup_platform(
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hass: HomeAssistant,
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config: ConfigType,
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add_entities: AddEntitiesCallback,
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discovery_info: DiscoveryInfoType | None = None,
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) -> None:
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"""Set up the Raspberry PI GPIO devices."""
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setup_reload_service(hass, DOMAIN, PLATFORMS)
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pull_mode = config[CONF_PULL_MODE]
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bouncetime = config[CONF_BOUNCETIME]
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invert_logic = config[CONF_INVERT_LOGIC]
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binary_sensors = []
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ports = config[CONF_PORTS]
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for port_num, port_name in ports.items():
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binary_sensors.append(
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RPiGPIOBinarySensor(
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port_name, port_num, pull_mode, bouncetime, invert_logic
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)
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)
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add_entities(binary_sensors, True)
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class RPiGPIOBinarySensor(BinarySensorEntity):
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"""Represent a binary sensor that uses Raspberry Pi GPIO."""
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async def async_read_gpio(self):
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"""Read state from GPIO."""
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await asyncio.sleep(float(self._bouncetime) / 1000)
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self._state = await self.hass.async_add_executor_job(
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rpi_gpio.read_input, self._port
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)
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self.async_write_ha_state()
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def __init__(self, name, port, pull_mode, bouncetime, invert_logic):
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"""Initialize the RPi binary sensor."""
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self._name = name or DEVICE_DEFAULT_NAME
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self._port = port
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self._pull_mode = pull_mode
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self._bouncetime = bouncetime
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self._invert_logic = invert_logic
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self._state = None
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rpi_gpio.setup_input(self._port, self._pull_mode)
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def edge_detected(port):
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"""Edge detection handler."""
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self.hass.add_job(self.async_read_gpio)
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rpi_gpio.edge_detect(self._port, edge_detected, self._bouncetime)
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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 sensor."""
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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 the state of the entity."""
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return self._state != self._invert_logic
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def update(self):
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"""Update the GPIO state."""
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self._state = rpi_gpio.read_input(self._port)
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