1 /*jslint node:true, vars:true, bitwise:true, unparam:true */ 2 /*jshint unused:true */ 3 /* 4 * Author: Jon Trulson <jtrulson (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 Uln200xa_lib = require('jsupm_uln200xa'); 28 29 // Instantiate a Stepper motor on a ULN200XA Darlington Motor Driver 30 // This was tested with the Grove Geared Step Motor with Driver 31 32 // Instantiate a ULN2003XA stepper object 33 var myUln200xa_obj = new Uln200xa_lib.ULN200XA(4096, 8, 9, 10, 11); 34 35 myUln200xa_obj.goForward = function() 36 { 37 myUln200xa_obj.setSpeed(5); // 5 RPMs 38 myUln200xa_obj.setDirection(Uln200xa_lib.ULN200XA.DIR_CW); 39 console.log("Rotating 1 revolution clockwise."); 40 myUln200xa_obj.stepperSteps(4096); 41 }; 42 43 myUln200xa_obj.reverseDirection = function() 44 { 45 console.log("Rotating 1/2 revolution counter clockwise."); 46 myUln200xa_obj.setDirection(Uln200xa_lib.ULN200XA.DIR_CCW); 47 myUln200xa_obj.stepperSteps(2048); 48 }; 49 50 myUln200xa_obj.stop = function() 51 { 52 myUln200xa_obj.release(); 53 }; 54 55 myUln200xa_obj.quit = function() 56 { 57 myUln200xa_obj = null; 58 Uln200xa_lib.cleanUp(); 59 Uln200xa_lib = null; 60 console.log("Exiting"); 61 process.exit(0); 62 }; 63 64 // Run ULN200xa driven stepper 65 myUln200xa_obj.goForward(); 66 setTimeout(myUln200xa_obj.reverseDirection, 2000); 67 setTimeout(function() 68 { 69 myUln200xa_obj.stop(); 70 myUln200xa_obj.quit(); 71 }, 2000); 72
