/* * Author: Zion Orent * Copyright (c) 2015 Intel Corporation. * * This program and the accompanying materials are made available under the * terms of the The MIT License which is available at * https://opensource.org/licenses/MIT. * * SPDX-License-Identifier: MIT */ var HBridge_lib = require('jsupm_l298'); // Instantiate one of the 2 possible DC motors on a L298 Dual // H-Bridge. For controlling a stepper motor, see the l298-stepper // example. var myHBridge_obj = new HBridge_lib.L298(3, 4, 7); /***************************** * Instantiate H-bridge object ******************************/ myHBridge_obj.goForward = function() { console.log("Starting motor at 50% for 3 seconds..."); myHBridge_obj.setSpeed(50); myHBridge_obj.setDirection(HBridge_lib.L298.DIR_CW); myHBridge_obj.enable(true); }; myHBridge_obj.reverseDirection = function() { console.log("Reversing direction..."); myHBridge_obj.setDirection(HBridge_lib.L298.DIR_NONE); // fast stop myHBridge_obj.setDirection(HBridge_lib.L298.DIR_CCW); }; myHBridge_obj.stop = function() { myHBridge_obj.setSpeed(0); myHBridge_obj.enable(false); }; myHBridge_obj.quit = function() { myHBridge_obj = null; HBridge_lib.cleanUp(); HBridge_lib = null; console.log("Exiting"); process.exit(0); }; /************************ * Run H-bridge! *************************/ myHBridge_obj.goForward(); setTimeout(myHBridge_obj.reverseDirection, 3000); setTimeout(function() { myHBridge_obj.stop(); myHBridge_obj.quit(); }, 6000);