/*jslint node:true, vars:true, bitwise:true, unparam:true */ /*jshint unused:true */ /* * Author: Mihai Tudor Panu * Copyright (c) 2015 Intel Corporation. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ var lib = require('jsupm_stepmotor'); // Instantiate a stepper motor driver on pins 2 (direction) and 3 (step) var stepper = new lib.StepMotor(2, 3); function delay(milliseconds) { var startTime = Date.now(); while (Date.now() - startTime < milliseconds); } stepper.quit = function() { stepper = null; lib.cleanUp(); lib = null; console.log("Exiting"); process.exit(0); }; // The driver is synchronous and blocking console.log("Rotating 1 revolution forward and back at 60 rpm."); stepper.setSpeed(60); stepper.stepForward(200); delay(1000); stepper.stepBackward(200); delay(1000); console.log("Rotating 1 revolution forward and back at 150 rpm."); stepper.setSpeed(150); stepper.stepForward(200); delay(1000); stepper.stepBackward(200); delay(1000); console.log("Rotating 1 revolution forward and back at 300 rpm."); stepper.setSpeed(300); stepper.stepForward(200); delay(1000); stepper.stepBackward(200); delay(1000); stepper.quit();