HA插件从入门到入坑 - sensor入门编 1

lidicn · 发表于 2017-8-24 12:43:00

本帖最后由 lidicn 于 2017-12-13 13:30 编辑

下面这个是官方的sensor demo，实现了最简单的sensor。，在custom_components\sensor 路径下新建一个demo.py 将下面的代码复制、粘贴进去。

[pre]"""
Demo platform that has a couple of fake sensors.
For more details about this platform, please refer to the documentation
https://home-assistant.io/components/demo/
"""
from homeassistant.const import ATTR_BATTERY_LEVEL, TEMP_CELSIUS
from homeassistant.helpers.entity import Entity

# pylint: disable=unused-argument
def setup_platform(hass, config, add_devices, discovery_info=None):
"""Set up the Demo sensors."""
add_devices([
      DemoSensor('Outside Temperature', 15.6, TEMP_CELSIUS, 12),
      DemoSensor('Outside Humidity', 54, '%', None),
])

class DemoSensor(Entity):
"""Representation of a Demo sensor."""

def __init__(self, name, state, unit_of_measurement, battery):
      """Initialize the sensor."""
      self._name = name
      self._state = state
      self._unit_of_measurement = unit_of_measurement
      self._battery = battery

@property
def should_poll(self):
      """No polling needed for a demo sensor."""
      return False

@property
def name(self):
      """Return the name of the sensor."""
      return self._name

@property
def state(self):
      """Return the state of the sensor."""
      return self._state

@property
def unit_of_measurement(self):
      """Return the unit this state is expressed in."""
      return self._unit_of_measurement

@property
def device_state_attributes(self):
      """Return the state attributes."""
      if self._battery:
         return {
            ATTR_BATTERY_LEVEL: self._battery,
         }[/pre]

在你的package文件夹里面新建一个 demo.yaml 并输入以下代码

[pre]sensor:
  platform: demo
  name: demo[/pre]

这里的demo是与你新建的demo.py的文件名一致的。可根据自己的sensor改需要的名称。

重启HA，激动时刻。终于可以看见自己写的sensor了
TIM截图20170824122537.jpg