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57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2015-2016 Intel Corporation.
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*
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* This program and the accompanying materials are made available under the
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* terms of the The MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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*/
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var Uln200xa_lib = require('jsupm_uln200xa');
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// Instantiate a Stepper motor on a ULN200XA Darlington Motor Driver
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// This was tested with the Grove Geared Step Motor with Driver
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// Instantiate a ULN2003XA stepper object
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var myUln200xa_obj = new Uln200xa_lib.ULN200XA(4096, 8, 9, 10, 11);
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myUln200xa_obj.goForward = function()
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{
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myUln200xa_obj.setSpeed(5); // 5 RPMs
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myUln200xa_obj.setDirection(Uln200xa_lib.ULN200XA_DIR_CW);
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console.log("Rotating 1 revolution clockwise.");
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myUln200xa_obj.stepperSteps(4096);
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};
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myUln200xa_obj.reverseDirection = function()
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{
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console.log("Rotating 1/2 revolution counter clockwise.");
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myUln200xa_obj.setDirection(Uln200xa_lib.ULN200XA_DIR_CCW);
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myUln200xa_obj.stepperSteps(2048);
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};
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myUln200xa_obj.stop = function()
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{
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myUln200xa_obj.release();
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};
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myUln200xa_obj.quit = function()
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{
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myUln200xa_obj = null;
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Uln200xa_lib.cleanUp();
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Uln200xa_lib = null;
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console.log("Exiting");
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process.exit(0);
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};
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// Run ULN200xa driven stepper
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myUln200xa_obj.goForward();
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setTimeout(myUln200xa_obj.reverseDirection, 2000);
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setTimeout(function()
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{
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myUln200xa_obj.stop();
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myUln200xa_obj.quit();
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}, 2000);
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