upm/examples/python/gp2y0a.py
Noel Eck 2f78d9f62b python_examples: Reformatted, self-checking, executable
* Moved body of each python example to main.  This allows for basic
      load module testing for CI
    * General cleanup of python modules (crlf/tabs/prints/etc)
    * Chmod'ed to 755 to allow running examples without specifying the
      python interpreter
    * Added ctest for loading python2/3 modules
    * Added jniclasscode pragma for java swig interface files.
    * Updated check_examplenames.py module to check all languages vs. a
      cxx example name
    * Added tests for checking python module and test loading
    * Added 'make test' to travis-ci run (run ctests)
    * Print a more meaningful message when not building cxx docs into
      python modules
    * Updated check_clean.py to only check java wrapper files
    * ENABLED ctests for UPM
    * Deleted using_carrays.py python example - this is covered by other
      examples

Signed-off-by: Noel Eck <noel.eck@intel.com>
2016-10-04 16:10:17 -07:00

65 lines
2.4 KiB
Python
Executable File

#!/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,
# distribute, sublicense, and/or sell copies of the Software, and to
# 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.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import time, sys, signal, atexit
import pyupm_gp2y0a as upmGp2y0a
def main():
# Note, for the Grove 80cm version of this sensor, due to the way it is wired,
# you need to plug this into the A0 port, where it will use the available
# A1 pin for data.
# Instantiate a GP2Y0A on analog pin A1
myIRProximity = upmGp2y0a.GP2Y0A(1)
## 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 myIRProximity
def exitHandler():
print "Exiting"
sys.exit(0)
# Register exit handlers
atexit.register(exitHandler)
signal.signal(signal.SIGINT, SIGINTHandler)
# analog voltage, usually 3.3 or 5.0
GP2Y0A_AREF = 5.0;
SAMPLES_PER_QUERY = 20;
# The higher the voltage (closer to AREF) the closer the object is.
# NOTE: The measured voltage will probably not exceed 3.3 volts.
# Every second, print the averaged voltage value
# (averaged over 20 samples).
while (1):
print "AREF: {0}, Voltage value (higher means closer): {1}".format(
GP2Y0A_AREF,
myIRProximity.value(GP2Y0A_AREF, SAMPLES_PER_QUERY))
time.sleep(1)
if __name__ == '__main__':
main()