KitWallace

  def baroReader(interval_secs,altitude) :
     baro = BMP085()
     while True :
          slbaro = round(baro.readSeaLevelPressure(altitude) / 100 ,2)
          yield(slbaro)
          time.sleep(interval_secs)

KitWallace

  def readSeaLevelPressure(self, altitude=0) :
    "Calculates the sea level pressure from a pressure at an altitude in metres"
    pressure = float(self.readPressure())
    pressureSL =  pressure / pow( ( 1.0 -  float(altitude) / 44330) , 5.225)
    if (self.debug) :
      print("DBG: Sea Level Pressure = %d" % (pressureSL))
    return pressureSL

KitWallace

#!/usr/bin/env python3 

import time, json, re, sys
from urllib.request import urlopen
from urllib.parse import quote_plus
from email.utils import parsedate_tz

# local modules 
import speak

KitWallace

(:
  a hack conversion from some forms of json to xml
  presumption is that  [  ] { } only used as json syntax not as characters in quoted strings 
  parsing of comma-separated text supports embedded , and : , relying on "\s*: as a separator
  if the hint <rough is present in the flags, arrays will be split on comma - this is needed because the 
  recursive algorithm for text parsing causes stack overflow after 99 iterations.
  embedded HTML is not supported
  root is div 
  un named arrays or blocks are enclosed in divs
  element names are expected to be valid XML names

KitWallace

# start up the monitor and talker processes

python start_barometer.py &
python barometer_talk.py &
python simple_clock.py &

# the controller will take stdin character input from keyboard or presenter
# yacht1 is the current version of the menu 
python controller.py yacht1

KitWallace

""" 
   This forecast method comes from 
   http://www.sciencecompany.com/-W135.aspx
   input is the current baro (in hPa) and the trend over 3 hours

"""

forecast1_table = \
  (
    (1022, ( (-0.1 , "Continued fair"),

KitWallace

 <item title="Clock" action="'Clock is '+ get('clock').status()">
       <item action="'Clock is now '+ get('clock').toggle().put().status()"/>
 </item>

KitWallace

#!/usr/bin/python
import time
import speak

from persistant import *
from switch import *

Switch("clock").put()

while True :

KitWallace

from persistant import *

class Switch(Persistant) :
     
    def __init__(self,name) :
        self.name = name
        self.on = True
    
    def switch_on(self) :
        self.on= True

KitWallace

import pickle
import time

def get(name) :
        file = open("obj/"+name+".pkl","r")
        return pickle.load(file)

class Persistant(object) :
   
    def __init__(self,name) :