1 #!/usr/bin/python 2 # Author: Zion Orent <zorent (at] ics.com> 3 # Copyright (c) 2015 Intel Corporation. 4 # 5 # Permission is hereby granted, free of charge, to any person obtaining 6 # a copy of this software and associated documentation files (the 7 # "Software"), to deal in the Software without restriction, including 8 # without limitation the rights to use, copy, modify, merge, publish, 9 # distribute, sublicense, and/or sell copies of the Software, and to 10 # permit persons to whom the Software is furnished to do so, subject to 11 # the following conditions: 12 # 13 # The above copyright notice and this permission notice shall be 14 # included in all copies or substantial portions of the Software. 15 # 16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 19 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 20 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 21 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 22 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 24 import time, sys, signal, atexit 25 import pyupm_rpr220 as upmRpr220 26 27 # This example uses a simple method to determine current status 28 29 # Instantiate an RPR220 digital pin D2 30 # This was tested on the Grove IR Reflective Sensor 31 myReflectiveSensor = upmRpr220.RPR220(2) 32 33 34 ## Exit handlers ## 35 # This stops python from printing a stacktrace when you hit control-C 36 def SIGINTHandler(signum, frame): 37 raise SystemExit 38 39 # This lets you run code on exit, 40 # including functions from myReflectiveSensor 41 def exitHandler(): 42 print "Exiting" 43 sys.exit(0) 44 45 # Register exit handlers 46 atexit.register(exitHandler) 47 signal.signal(signal.SIGINT, SIGINTHandler) 48 49 50 while(1): 51 if (myReflectiveSensor.blackDetected()): 52 print "Black detected" 53 else: 54 print "Black NOT detected" 55 56 time.sleep(.1) 57
