#!/usr/bin/env python # Author: Jon Trulson # Copyright (c) 2016 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_dfrec as sensorObj def main(): # Instantiate a DFRobot EC sensor on analog pin A0, with a ds18b20 # temperature sensor connected to UART 0, and a device index (for # the ds1820b uart bus) of 0, and an analog reference voltage of # 5.0. sensor = sensorObj.DFREC(0, 0, 0, 5.0) ## Exit handlers ## # This function 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 def exitHandler(): print("Exiting") sys.exit(0) # Register exit handlers atexit.register(exitHandler) signal.signal(signal.SIGINT, SIGINTHandler) # Every 2 seconds, update and print values while (True): sensor.update() print("EC =", sensor.getEC(), "ms/cm") print("Volts =", sensor.getVolts(), end=' ') print(", Temperature = ", sensor.getTemperature(), "C") print() time.sleep(2) if __name__ == '__main__': main()