class TempActuatorEmulator(object):
'''
classdocs
'''
diff = 0.0
flag = None
def __init__(self):
'''
Constructor
'''
self._adata = ActuatorData()
'''
After getting the differential from two degrees, start to tell the user how the temperature is going by showing message on senseHat.
'''
def displayMSG(self):
print("Start to show message...")
self.senseHatLedActivator = SenseHatLedActivator()
self.senseHatLedActivator.setEnableLedFlag(True)
if self.flag == True:
self.senseHatLedActivator.setDisplayMessage("Turn down " +
str(self.diff)[:4])
elif self.flag == False:
self.senseHatLedActivator.setDisplayMessage("Turn up " +
str(self.diff)[:4])
self.senseHatLedActivator.run()
'''
Compare the new value and the previous value of the ActuatorData.
If different, calculate the differential value.
After showing the message on senseHat, store the new value into ActuatorData.
'''
def processMessage(self, adata):
if self._adata.get_val == 0:
self._adata = adata
else:
old_val = self._adata.get_val()
new_val = adata.get_val()
if old_val != new_val:
if float(old_val) > float(new_val):
# If -, notice user to decrease the temperature
self.diff = abs(float(old_val) - float(new_val))
self.flag = True
else:
# If +, notice user to increase the temperature
self.diff = abs(float(old_val) - float(new_val))
self.flag = False
self.displayMSG()
self._adata.updateData(adata.get_command(),
adata.get_statusCode(),
adata.get_errCode(),
adata.get_stateData(), new_val)
self._adata.updateTimeStamp()
print("New ActuatorData instance created.")
print(self._adata.get_timeStamp())
class HumidityActuatorEmulator(object):
'''
Compare processed humidity value and threshold, set actions on actuator(SenseHat Ledscreen)
'''
flag = None
def __init__(self):
self.ad = ActuatorData()
self.sh = SenseHat()
def displayMsg(self):
logging.basicConfig(format='%(asctime)s:%(levelname)s:%(message)s',
level=logging.DEBUG)
logging.info("Start to show message...\n")
self.led = SenseHatLedActivator()
self.led.setEnableLedFlag(True)
if self.flag == 1:
self.led.setDisplayMessage("Decrease!")
elif self.flag == 2:
self.led.setDisplayMessage("Increase!")
elif self.flag == 3:
self.led.setDisplayMessage("Keep!")
self.led.run()
def process(self, data, threshold):
if self.ad.get_val() == 0:
self.ad = data
else:
val = data.get_val()
if val != threshold:
if val > threshold:
self.flag = 1
elif val < 20:
self.flag = 2
else:
self.flag = 3
self.displayMsg()
self.ad.updateData(data.get_command(), data.get_statusCode(),
data.get_errCode(), data.get_statusCode,
val)
self.ad.updateTimeStamp()
logging.info("ActuatorData created!\n")