1#!/usr/bin/python 2# Author: Zion Orent <zorent@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 24import time, sys, signal, atexit 25import pyupm_grovemoisture as upmMoisture 26 27# Instantiate a Grove Moisture sensor on analog pin A0 28myMoisture = upmMoisture.GroveMoisture(0) 29 30 31## Exit handlers ## 32# This function stops python from printing a stacktrace when you hit control-C 33def SIGINTHandler(signum, frame): 34 raise SystemExit 35 36# This function lets you run code on exit, including functions from myMoisture 37def exitHandler(): 38 print "Exiting" 39 sys.exit(0) 40 41# Register exit handlers 42atexit.register(exitHandler) 43signal.signal(signal.SIGINT, SIGINTHandler) 44 45 46# Values (approximate): 47# 0-300, sensor in air or dry soil 48# 300-600, sensor in humid soil 49# 600+, sensor in wet soil or submerged in water 50 51# Read the value every second and print the corresponding moisture level 52while(1): 53 moisture_val = myMoisture.value() 54 if (moisture_val >= 0 and moisture_val < 300): 55 result = "Dry" 56 elif (moisture_val >= 300 and moisture_val < 600): 57 result = "Moist" 58 else: 59 result = "Wet" 60 print "Moisture value: {0}, {1}".format(moisture_val, result) 61 time.sleep(1) 62