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# Table of contents
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* [CraftBeerPi](README.md)
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* [Development](development.md)
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development.md
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development.md
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# Development
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## Custom Sensor
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```python
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# -*- coding: utf-8 -*-
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import asyncio
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import random
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import re
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import random
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from aiohttp import web
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from cbpi.api import *
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@parameters([Property.Number(label="Param1", configurable=True),
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Property.Text(label="Param2", configurable=True, default_value="HALLO"),
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Property.Select(label="Param3", options=[1,2,4]),
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Property.Sensor(label="Param4"),
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Property.Actor(label="Param5")])
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class CustomSensor(CBPiSensor):
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def __init__(self, cbpi, id, props):
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super(CustomSensor, self).__init__(cbpi, id, props)
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self.value = 0
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@action(key="Test", parameters=[])
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async def action1(self, **kwargs):
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'''
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A custom action. Which can be called from the user interface
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'''
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print("ACTION!", kwargs)
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async def run(self):
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'''
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This method is executed asynchronousely
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In this example the code is executed every second
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'''
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while self.running is True:
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self.value = random.randint(0,50)
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self.push_update(self.value)
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await asyncio.sleep(1)
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def get_state(self):
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# return the current state of the sensor
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return dict(value=self.value)
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def setup(cbpi):
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'''
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This method is called by the server during startup
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Here you need to register your plugins at the server
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:param cbpi: the cbpi core
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:return:
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'''
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cbpi.plugin.register("CustomSensor", CustomSensor)
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```
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