core/homeassistant/components/switch/arduino.py

69 lines
2.0 KiB
Python

"""
homeassistant.components.switch.arduino
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Support for switching Arduino pins on and off. So far only digital pins are
supported.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/switch.arduino/
"""
import logging
import homeassistant.components.arduino as arduino
from homeassistant.components.switch import SwitchDevice
from homeassistant.const import DEVICE_DEFAULT_NAME
DEPENDENCIES = ['arduino']
_LOGGER = logging.getLogger(__name__)
def setup_platform(hass, config, add_devices, discovery_info=None):
""" Sets up the Arduino platform. """
# Verify that Arduino board is present
if arduino.BOARD is None:
_LOGGER.error('A connection has not been made to the Arduino board.')
return False
switches = []
pins = config.get('pins')
for pinnum, pin in pins.items():
if pin.get('name'):
switches.append(ArduinoSwitch(pin.get('name'),
pinnum,
pin.get('type')))
add_devices(switches)
class ArduinoSwitch(SwitchDevice):
""" Represents an Arduino switch. """
def __init__(self, name, pin, pin_type):
self._pin = pin
self._name = name or DEVICE_DEFAULT_NAME
self.pin_type = pin_type
self.direction = 'out'
self._state = False
arduino.BOARD.set_mode(self._pin, self.direction, self.pin_type)
@property
def name(self):
""" Get the name of the pin. """
return self._name
@property
def is_on(self):
""" Returns True if pin is high/on. """
return self._state
def turn_on(self):
""" Turns the pin to high/on. """
self._state = True
arduino.BOARD.set_digital_out_high(self._pin)
def turn_off(self):
""" Turns the pin to low/off. """
self._state = False
arduino.BOARD.set_digital_out_low(self._pin)