Mercurial > templog

comparison py/sensor_ds18b20.py @ 155:d03157c7ad60

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
rough touch sensor
author Matt Johnston <matt@ucc.asn.au>
date Fri, 21 Dec 2012 23:30:16 +0800
parents e114b38c8a55
children 256505f98c4d
comparison
equal deleted inserted replaced
154:542efb356e46 155:d03157c7ad60
45 # interactively. 45 # interactively.
46 return self.readthread.apply(f.read) 46 return self.readthread.apply(f.read)
47 47
48 def do_sensor(self, s, contents = None): 48 def do_sensor(self, s, contents = None):
49 """ contents can be set by the caller for testing """ 49 """ contents can be set by the caller for testing """
50 D("dosensor %s" % s)
51 try: 50 try:
52 if contents is None: 51 if contents is None:
53 fn = os.path.join(self.master_dir, s, 'w1_slave') 52 fn = os.path.join(self.master_dir, s, 'w1_slave')
54 f = open(fn, 'r') 53 f = open(fn, 'r')
55 contents = self.read_wait(f) 54 contents = self.read_wait(f)
57 match = self.THERM_RE.match(contents) 56 match = self.THERM_RE.match(contents)
58 if match is None: 57 if match is None:
59 D("no match") 58 D("no match")
60 return None 59 return None
61 temp = int(match.groups(1)[0]) / 1000.0 60 temp = int(match.groups(1)[0]) / 1000.0
62 D("returning %f" % temp)
63 return temp 61 return temp
64 except Exception, e: 62 except Exception, e:
65 EX("Problem reading sensor '%s': %s" % (s, str(e))) 63 EX("Problem reading sensor '%s': %s" % (s, str(e)))
66 return None 64 return None
67 65