1/*jslint node:true, vars:true, bitwise:true, unparam:true */
2/*jshint unused:true */
3/*global */
4/*
5* Author: Zion Orent <zorent@ics.com>
6* Copyright (c) 2014 Intel Corporation.
7*
8* Permission is hereby granted, free of charge, to any person obtaining
9* a copy of this software and associated documentation files (the
10* "Software"), to deal in the Software without restriction, including
11* without limitation the rights to use, copy, modify, merge, publish,
12* distribute, sublicense, and/or sell copies of the Software, and to
13* permit persons to whom the Software is furnished to do so, subject to
14* the following conditions:
15*
16* The above copyright notice and this permission notice shall be
17* included in all copies or substantial portions of the Software.
18*
19* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
23* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26*/
27
28//Load Grove Moisture module
29var grove_moisture = require('jsupm_grovemoisture');
30
31// Instantiate a Grove Moisture sensor on analog pin A0
32var myMoistureObj = new grove_moisture.GroveMoisture(0);
33
34// Values (approximate):
35// 0-300,   sensor in air or dry soil
36// 300-600, sensor in humid soil
37// 600+,    sensor in wet soil or submerged in water
38// Read the value every second and print the corresponding moisture level
39setInterval(function()
40{
41	var result;
42	var moisture_val = parseInt(myMoistureObj.value());
43	if (moisture_val >= 0 && moisture_val < 300)
44		result = "Dry";
45	else if (moisture_val >= 300 && moisture_val < 600)
46		result = "Moist";
47	else
48		result = "Wet";
49	console.log("Moisture value: " + moisture_val + ", " + result);
50}, 1000);
51
52// Print message when exiting
53process.on('SIGINT', function()
54{
55	console.log("Exiting...");
56	process.exit(0);
57});
58