upm/examples/python/rpr220.py

#!/usr/bin/python
# Author: Zion Orent <zorent@ics.com>
# Copyright (c) 2015 Intel Corporation.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
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# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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import time, sys, signal, atexit
import pyupm_rpr220 as upmRpr220

# This example uses a simple method to determine current status

# Instantiate an RPR220 digital pin D2
# This was tested on the Grove IR Reflective Sensor
myReflectiveSensor = upmRpr220.RPR220(2)


## Exit handlers ##
# This stops python from printing a stacktrace when you hit control-C
def SIGINTHandler(signum, frame):
	raise SystemExit

# This lets you run code on exit,
# including functions from myReflectiveSensor
def exitHandler():
	print "Exiting"
	sys.exit(0)

# Register exit handlers
atexit.register(exitHandler)
signal.signal(signal.SIGINT, SIGINTHandler)


while(1):
	if (myReflectiveSensor.blackDetected()):
		print "Black detected"
	else:
		print "Black NOT detected"

	time.sleep(.1)