Mercurial > ~darius > hgwebdir.cgi > iec1107
diff iec1107.py @ 3:535076e31660
Parse the result.
author | Daniel O'Connor <darius@dons.net.au> |
---|---|
date | Wed, 20 Nov 2013 14:45:16 +1030 |
parents | 8f1a773a3cd5 |
children | 10a16898903d |
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--- a/iec1107.py Wed Nov 20 13:16:56 2013 +1030 +++ b/iec1107.py Wed Nov 20 14:45:16 2013 +1030 @@ -4,12 +4,15 @@ # http://www.domoticaforum.eu/viewtopic.php?f=71&t=7489 # +import datetime import exceptions +import re import serial import sys import time baudtable = {'0' : 300, '1' : 600, '2' : 1200, '3' : 2400, '4' : 4800, '5' : 9600, '6' : 19200} +parsere = re.compile('([0-9A-Z](\.[0-9A-Z]){1,})\((.*)\)') class Error(exceptions.BaseException): pass @@ -76,10 +79,11 @@ # Read result lines while True: line = s.readline() - cksum ^= reduce(lambda x, y: x ^ y, map(ord, line)) if len(line) == 0: raise Error('Timeout during message') - if line == '!': + + cksum ^= reduce(lambda x, y: x ^ y, map(ord, line)) + if line.strip() == '!': break lines.append(line) @@ -97,6 +101,33 @@ self.rawreading = lines del s + self.parse() + self.readdate = datetime.datetime.now() + + def parse(self): + for l in self.rawreading: + m = parsere.match(l) + if m == None: + raise Error('Unable to parse result \"%s\"' % (l)) + + (code, xxx, value) = m.groups() + if code == 'C.1': + self.meterid, date = value.split('(') + # XXX: The meter I have is an hour slow + self.meterdate = datetime.datetime.strptime(date, '%H:%M %d-%m-%y') + elif code == '1.8.0': + self.importWh = int(value[0:-3]) + elif code[0:4] == '1.8.': + # Differing tarrifs which I don't care about + pass + elif code == '2.8.0': + self.exportWh = int(value[0:-3]) + else: + print 'Unknown code', code + + def __str__(self): + return 'Time: %s, Meter: %s, Import: %d Wh, Export: %d Wh' % (self.readdate.strftime('%Y/%m/%d %H:%M'), + self.meterid, self.importWh, self.exportWh) def main(): if len(sys.argv) != 2: print 'Bad usage'