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78 lines
2.4 KiB
JavaScript
78 lines
2.4 KiB
JavaScript
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
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/*jshint unused:true */
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/*
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* Author: Zion Orent <zorent@ics.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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var HBridge_lib = require('jsupm_l298');
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// Instantiate one of the 2 possible DC motors on a L298 Dual
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// H-Bridge. For controlling a stepper motor, see the l298-stepper
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// example.
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var myHBridge_obj = new HBridge_lib.L298(3, 4, 7);
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/*****************************
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* Instantiate H-bridge object
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******************************/
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myHBridge_obj.goForward = function()
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{
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console.log("Starting motor at 50% for 3 seconds...");
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myHBridge_obj.setSpeed(50);
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myHBridge_obj.setDirection(HBridge_lib.L298.DIR_CW);
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myHBridge_obj.enable(true);
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};
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myHBridge_obj.reverseDirection = function()
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{
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console.log("Reversing direction...");
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myHBridge_obj.setDirection(HBridge_lib.L298.DIR_NONE); // fast stop
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myHBridge_obj.setDirection(HBridge_lib.L298.DIR_CCW);
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};
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myHBridge_obj.stop = function()
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{
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myHBridge_obj.setSpeed(0);
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myHBridge_obj.enable(false);
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};
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myHBridge_obj.quit = function()
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{
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myHBridge_obj = null;
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HBridge_lib.cleanUp();
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HBridge_lib = null;
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console.log("Exiting");
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process.exit(0);
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};
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/************************
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* Run H-bridge!
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*************************/
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myHBridge_obj.goForward();
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setTimeout(myHBridge_obj.reverseDirection, 3000);
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setTimeout(function()
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{
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myHBridge_obj.stop();
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myHBridge_obj.quit();
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}, 6000);
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