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_grovevdiv as upmGrovevdiv 26 27 # Instantiate a Grove Voltage Divider sensor on analog pin A0 28 myVoltageDivider = upmGrovevdiv.GroveVDiv(0) 29 30 31 ## Exit handlers ## 32 # This stops python from printing a stacktrace when you hit control-C 33 def SIGINTHandler(signum, frame): 34 raise SystemExit 35 36 # This function lets you run code on exit, 37 # including functions from myVoltageDivider 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 val = myVoltageDivider.value(100) 49 gain3val = myVoltageDivider.computedValue(3, val) 50 gain10val = myVoltageDivider.computedValue(10, val) 51 print "ADC value: {0} Gain 3: {1}v Gain 10: {2}v".format( 52 val, gain3val, gain10val) 53 54 time.sleep(1) 55
