craftbeerpi4-pione/cbpi/extension/onewire/__init__.py
2021-02-16 20:37:51 +01:00

97 lines
2.6 KiB
Python

# -*- coding: utf-8 -*-
import asyncio
import random
import re
import random
from aiohttp import web
from cbpi.api import *
import os, re, threading, time
from subprocess import call
def getSensors():
try:
arr = []
for dirname in os.listdir('/sys/bus/w1/devices'):
if (dirname.startswith("28") or dirname.startswith("10")):
arr.append(dirname)
return arr
except:
return []
class ReadThread (threading.Thread):
value = 0
def __init__(self, sensor_name):
threading.Thread.__init__(self)
self.value = 0
self.sensor_name = sensor_name
self.runnig = True
def shutdown(self):
pass
def stop(self):
self.runnig = False
def run(self):
while self.runnig:
try:
if self.sensor_name is None:
return
with open('/sys/bus/w1/devices/w1_bus_master1/%s/w1_slave' % self.sensor_name, 'r') as content_file:
content = content_file.read()
if (content.split('\n')[0].split(' ')[11] == "YES"):
temp = float(content.split("=")[-1]) / 1000 # temp in Celcius
self.value = temp
except:
pass
time.sleep(1)
@parameters([Property.Select(label="Sensor", options=getSensors()), Property.Select(label="Interval", options=[1,5,10,30,60], description="Interval in Seconds")])
class OneWire(CBPiSensor):
def __init__(self, cbpi, id, props):
super(OneWire, self).__init__(cbpi, id, props)
self.value = 0
async def start(self):
await super().start()
self.name = self.props.get("Sensor")
self.interval = self.props.get("Interval", 60)
self.t = ReadThread(self.name)
self.t.daemon = True
def shudown():
shudown.cb.shutdown()
shudown.cb = self.t
self.t.start()
async def stop(self):
try:
self.t.stop()
self.running = False
except:
pass
async def run(self):
while True:
self.value = self.t.value
self.log_data(self.value)
self.push_update(self.value)
await asyncio.sleep(self.interval)
def get_state(self):
return dict(value=self.value)
def setup(cbpi):
cbpi.plugin.register("OneWire", OneWire)
try:
# Global Init
call(["modprobe", "w1-gpio"])
call(["modprobe", "w1-therm"])
except Exception as e:
pass