upm/examples/python/mpr121.py
Noel Eck bf425014ab python: Added upm directory for python modules
* Grouped UPM python modules into upm directory, for example:
      /usr/local/lib/python2.7/dist-packages/upm
    * Updated UPM example import statements
    * Removed unused RPATH statements from UPM src CMakeLists.txt,
      currently build collateral contains an explicit RPATH which
      is stripped from the install collateral.
    * Converted python examples to work on both python2 AND python3
    * Added ctest for loading examples w/python3
    * Removed returns from swig macros
    * UPM python module use will change...
        Before:
            import pyupm_dfrph
        After:
            from upm import pyupm_dfrph
            or
            import upm.pyupm_dfrph
            etc...
    * This commit fixes #468

Signed-off-by: Noel Eck <noel.eck@intel.com>
2016-10-13 08:22:40 -07:00

76 lines
2.5 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.
from __future__ import print_function
import time, sys, signal, atexit
from upm import pyupm_mpr121 as upmMpr121
def main():
I2C_BUS = upmMpr121.MPR121_I2C_BUS
DEFAULT_I2C_ADDR = upmMpr121.MPR121_DEFAULT_I2C_ADDR
# Instantiate an MPR121 touch sensor on I2C
myTouchSensor = upmMpr121.MPR121(I2C_BUS, DEFAULT_I2C_ADDR)
## Exit handlers ##
# This stops python from printing a stacktrace when you hit control-C
def SIGINTHandler(signum, frame):
raise SystemExit
# This function lets you run code on exit,
# including functions from myTouchSensor
def exitHandler():
print("Exiting")
sys.exit(0)
# Register exit handlers
atexit.register(exitHandler)
signal.signal(signal.SIGINT, SIGINTHandler)
def printButtons(touchSensor):
buttonPressed = False
outputStr = "Buttons Pressed: "
for i in range(12):
if (touchSensor.m_buttonStates & (1 << i)):
outputStr += (str(i) + " ")
buttonPressed = True
if (not buttonPressed):
outputStr += "None"
print(outputStr)
if (touchSensor.m_overCurrentFault):
print("Over Current Fault detected!")
while(1):
myTouchSensor.readButtons()
printButtons(myTouchSensor)
time.sleep(1)
if __name__ == '__main__':
main()