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_rfr359f as upmRfr359f 26 27 # Instantiate an RFR359F digital pin D2 28 # This was tested on the Grove IR Distance Interrupter 29 myDistInterrupter = upmRfr359f.RFR359F(2) 30 31 32 ## Exit handlers ## 33 # This function stops python from printing a stacktrace when you hit control-C 34 def SIGINTHandler(signum, frame): 35 raise SystemExit 36 37 # This function lets you run code on exit, including functions from myDistInterrupter 38 def exitHandler(): 39 print "Exiting" 40 sys.exit(0) 41 42 # Register exit handlers 43 atexit.register(exitHandler) 44 signal.signal(signal.SIGINT, SIGINTHandler) 45 46 47 while(1): 48 if (myDistInterrupter.objectDetected()): 49 print "Object detected" 50 else: 51 print "Area is clear" 52 time.sleep(.1) 53
