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 var joystick = require('jsupm_joystick12'); 29 30 // Instantiate a joystick on analog pins A0 and A1 31 var myJoystick = new joystick.Joystick12(0, 1); 32 33 // Print the X and Y input values every second 34 setInterval(function() 35 { 36 var XString = "Driving X:" + roundNum(myJoystick.getXInput(), 6); 37 var YString = ": and Y:" + roundNum(myJoystick.getYInput(), 6); 38 console.log(XString + YString); 39 }, 1000); 40 41 function roundNum(num, decimalPlaces) 42 { 43 var extraNum = (1 / (Math.pow(10, decimalPlaces) * 1000)); 44 var numerator = Math.round((num + extraNum) * (Math.pow(10, decimalPlaces))); 45 var denominator = Math.pow(10, decimalPlaces); 46 return (numerator / denominator); 47 } 48 49 // Print message when exiting 50 process.on('SIGINT', function() 51 { 52 console.log("Exiting..."); 53 process.exit(0); 54 }); 55
