def main():
# Attach gas sensor to Analog A0
sensor = upmGAS.MQ7(0)
## Exit handlers ##
# This function stops python from printing a stacktrace when you hit control-C
def SIGINTHandler(signum, frame):
raise SystemExit
# This function lets you run code on exit, including functions from sensor
def exitHandler():
print "Exiting"
sys.exit(0)
# Register exit handlers
atexit.register(exitHandler)
signal.signal(signal.SIGINT, SIGINTHandler)
threshContext = upmGAS.thresholdContext()
threshContext.averageReading = 0
threshContext.runningAverage = 0
threshContext.averagedOver = 2
# Infinite loop, ends when script is cancelled
# Repeatedly, take a sample every 2 microseconds;
# find the average of 128 samples; and
# print a running graph of asteriskss as averages
mybuffer = upmGAS.uint16Array(128)
while(1):
samplelen = sensor.getSampledWindow(2, 128, mybuffer)
if samplelen:
thresh = sensor.findThreshold(threshContext, 30, mybuffer, samplelen)
sensor.printGraph(threshContext, 5)
def __init__(self, refresh=1, port=1, averageReading=0, runningAverage=0, averagedOver=2, *args, **kwargs):
super(GasSensor, self).__init__(refresh=refresh, *args, **kwargs)
self.upm_sensor = gas.MQ5(port)
self.threshContext = gas.thresholdContext()
self.threshContext.averageReading = averageReading
self.threshContext.runningAverage = runningAverage
self.threshContext.averagedOver = averagedOver
self.buffer = gas.uint16Array(128)
def fMq2():
# From
# https://github.com/intel-iot-devkit/upm/blob/master/examples/python/mq2.py
thisMq2 = upmGas.MQ2(0);
threshContext = upmGas.thresholdContext()
threshContext.averageReading = 0
threshContext.runningAverage = 0
threshContext.averagedOver = 2
thisbuffer = upmGas.uint16Array(128)
while True:
samplelen = thisMq2.getSampledWindow(2, 128, thisbuffer)
if samplelen:
thresh = thisMq2.findThreshold(threshContext, 30, thisbuffer, samplelen)
#thisMq2.printGraph(threshContext, 5)
if(thresh):
print("MQ2 Threshold: ", thresh)
time.sleep(1)
def fMq2():
# From
# https://github.com/intel-iot-devkit/upm/blob/master/examples/python/mq2.py
thisMq2 = upmGas.MQ2(0)
threshContext = upmGas.thresholdContext()
threshContext.averageReading = 0
threshContext.runningAverage = 0
threshContext.averagedOver = 2
thisbuffer = upmGas.uint16Array(128)
while True:
samplelen = thisMq2.getSampledWindow(2, 128, thisbuffer)
if samplelen:
thresh = thisMq2.findThreshold(threshContext, 30, thisbuffer,
samplelen)
#thisMq2.printGraph(threshContext, 5)
if (thresh):
print("MQ2 Threshold: ", thresh)
time.sleep(1)
def SIGINTHandler(signum, frame): raise SystemExit # This function lets you run code on exit, including functions from myMQ9 def exitHandler(): print "Exiting" sys.exit(0) # Register exit handlers atexit.register(exitHandler) signal.signal(signal.SIGINT, SIGINTHandler) threshContext = upmGas.thresholdContext() threshContext.averageReading = 0 threshContext.runningAverage = 0 threshContext.averagedOver = 2 # Infinite loop, ends when script is cancelled # Repeatedly, take a sample every 2 microseconds; # find the average of 128 samples; and # print a running graph of dots as averages mybuffer = upmGas.uint16Array(128) while(1): samplelen = myMQ9.getSampledWindow(2, 128, mybuffer) if samplelen: thresh = myMQ9.findThreshold(threshContext, 30, mybuffer, samplelen) myMQ9.printGraph(threshContext, 5) if(thresh): print "Threshold is ", thresh
raise SystemExit
# This function lets you run code on exit, including functions from myMQ9
def exitHandler():
print "Exiting"
sys.exit(0)
# Register exit handlers
atexit.register(exitHandler)
signal.signal(signal.SIGINT, SIGINTHandler)
threshContext = upmGas.thresholdContext()
threshContext.averageReading = 0
threshContext.runningAverage = 0
threshContext.averagedOver = 2
# Infinite loop, ends when script is cancelled
# Repeatedly, take a sample every 2 microseconds;
# find the average of 128 samples; and
# print a running graph of dots as averages
mybuffer = upmGas.uint16Array(128)
while (1):
samplelen = myMQ9.getSampledWindow(2, 128, mybuffer)
if samplelen:
thresh = myMQ9.findThreshold(threshContext, 30, mybuffer, samplelen)
myMQ9.printGraph(threshContext, 5)
if (thresh):
print "Threshold is ", thresh
def SIGINTHandler(signum, frame): raise SystemExit # This function lets you run code on exit, including functions from sensor def exitHandler(): print "Exiting" sys.exit(0) # Register exit handlers atexit.register(exitHandler) signal.signal(signal.SIGINT, SIGINTHandler) threshContext = upmGAS.thresholdContext() threshContext.averageReading = 0 threshContext.runningAverage = 0 threshContext.averagedOver = 2 # Infinite loop, ends when script is cancelled # Repeatedly, take a sample every 2 microseconds; # find the average of 128 samples; and # print a running graph of asteriskss as averages mybuffer = upmGAS.uint16Array(128) while(1): samplelen = sensor.getSampledWindow(2, 128, mybuffer) if samplelen: thresh = sensor.findThreshold(threshContext, 30, mybuffer, samplelen) sensor.printGraph(threshContext, 5) # if(thresh): # print "Threshold is ", thresh
def SIGINTHandler(signum, frame): raise SystemExit # This function lets you run code on exit, including functions from sensor def exitHandler(): print "Exiting" sys.exit(0) # Register exit handlers atexit.register(exitHandler) signal.signal(signal.SIGINT, SIGINTHandler) threshContext = upmGAS.thresholdContext() threshContext.averageReading = 0 threshContext.runningAverage = 0 threshContext.averagedOver = 2 # Infinite loop, ends when script is cancelled # Repeatedly, take a sample every 2 microseconds; # find the average of 128 samples; and # print a running graph of asteriskss as averages mybuffer = upmGAS.uint16Array(128) while(1): samplelen = sensor.getSampledWindow(2, 128, mybuffer) if samplelen: thresh = sensor.findThreshold(threshContext, 30, mybuffer, samplelen) sensor.printGraph(threshContext, 5) # if(thresh): # print "Threshold is ", thresh