1 /*jslint node:true, vars:true, bitwise:true, unparam:true */ 2 /*jshint unused:true */ 3 /* 4 * Author: Zion Orent <zorent (at) ics.com> 5 * Copyright (c) 2015 Intel Corporation. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining 8 * a copy of this software and associated documentation files (the 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sublicense, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be 16 * included in all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 */ 26 27 var electromagnet_lib = require("jsupm_groveelectromagnet"); 28 // The was tested with the Grove Electromagnetic Module 29 // Instantiate a Grove Electromagnet on digital pin D2 30 var electromagnet_obj = new electromagnet_lib.GroveElectromagnet(2); 31 console.log("Starting up magnet...."); 32 electromagnet_obj.off(); 33 34 var magnetState = false; 35 36 // Turn magnet on and off every 5 seconds 37 var myInterval = setInterval(function() 38 { 39 magnetState = !magnetState; 40 if (magnetState) 41 electromagnet_obj.on(); 42 else 43 electromagnet_obj.off(); 44 console.log("Turning magnet " + ((magnetState) ? "on" : "off")); 45 }, 5000); 46 47 // When exiting: clear interval, turn off magnet, run memory cleanup, and print message 48 process.on('SIGINT', function() 49 { 50 clearInterval(myInterval); 51 electromagnet_obj.off(); 52 electromagnet_obj = null; 53 electromagnet_lib.cleanUp(); 54 electromagnet_lib = null; 55 console.log("Exiting..."); 56 process.exit(0); 57 }); 58
