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fix for import problems with MAX31855

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This commit is contained in:
Sebastian Steuer 2013-11-24 00:36:10 +01:00
parent 082d422013
commit 26fcbd48b4
1 changed files with 9 additions and 8 deletions
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17
oven.py
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@ -2,6 +2,13 @@ import threading,time,random,datetime,logging
log = logging.getLogger(__name__) log = logging.getLogger(__name__)
try:
from max31855 import MAX31855, MAX31855Error
sensor_dummy = False
except ImportError:
log.warning("Could not initialize temperature sensor, using dummy values!")
sensor_dummy = True
class Oven (threading.Thread): class Oven (threading.Thread):
STATE_IDLE = "IDLE" STATE_IDLE = "IDLE"
STATE_RUNNING = "RUNNING" STATE_RUNNING = "RUNNING"
@ -58,12 +65,6 @@ class Oven (threading.Thread):
return state return state
class TempSensor(threading.Thread): class TempSensor(threading.Thread):
try:
from max31855 import MAX31855, MAX31855Error
dummy = False
except ImportError:
log.warning("Could not initialize temperature sensor, using dummy values!")
dummy = True
def __init__(self,oven): def __init__(self,oven):
threading.Thread.__init__(self) threading.Thread.__init__(self)
@ -72,7 +73,7 @@ class TempSensor(threading.Thread):
self.temperature = 0 self.temperature = 0
self.oven = oven self.oven = oven
if not TempSensor.dummy: if not sensor_dummy:
cs_pin = 27 cs_pin = 27
clock_pin = 22 clock_pin = 22
data_pin = 17 data_pin = 17
@ -82,7 +83,7 @@ class TempSensor(threading.Thread):
def run(self): def run(self):
while True: while True:
if not TempSensor.dummy: if not sensor_dummy:
self.temperature = self.thermocouple.get() self.temperature = self.thermocouple.get()
else: else:
time_delta = (20.0 - self.temperature)/40 time_delta = (20.0 - self.temperature)/40