1 /*jslint node:true, vars:true, bitwise:true, unparam:true */ 2 /*jshint unused:true */ 3 /*global */ 4 /* 5 * Author: Zion Orent <zorent (at) 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 29 var grove_moisture = require('jsupm_grovemoisture'); 30 31 // Instantiate a Grove Moisture sensor on analog pin A0 32 var 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 39 setInterval(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 53 process.on('SIGINT', function() 54 { 55 console.log("Exiting..."); 56 process.exit(0); 57 }); 58
