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uln200xa: Initial implementation

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This driver was tested on a Grove Geared Stepper with Driver, the
uln2003a paired with a 28BYJ-48 unipolar stepper motor.

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: John Van Drasek <john.r.van.drasek@intel.com>
This commit is contained in:
Jon Trulson
2015-04-08 17:33:24 -06:00
committed by John Van Drasek
parent 8bf92be1ab
commit 2a3485cf98
9 changed files with 623 additions and 0 deletions
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examples/javascript/uln200xa.js Normal file
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*
* Author: Jon Trulson <jtrulson@ics.com>
* 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 Uln200xa_lib = require('jsupm_uln200xa');
// Instantiate a Stepper motor on a ULN200XA Darlington Motor Driver
// This was tested with the Grove Geared Step Motor with Driver
// Instantiate a ULN2003XA stepper object
var myUln200xa_obj = new Uln200xa_lib.ULN200XA(4096, 8, 9, 10, 11);
myUln200xa_obj.goForward = function()
{
myUln200xa_obj.setSpeed(5); // 5 RPMs
myUln200xa_obj.setDirection(Uln200xa_lib.ULN200XA.DIR_CW);
console.log("Rotating 1 revolution clockwise.");
myUln200xa_obj.stepperSteps(4096);
};
myUln200xa_obj.reverseDirection = function()
{
console.log("Rotating 1/2 revolution counter clockwise.");
myUln200xa_obj.setDirection(Uln200xa_lib.ULN200XA.DIR_CCW);
myUln200xa_obj.stepperSteps(2048);
};
myUln200xa_obj.stop = function()
{
myUln200xa_obj.release();
};
myUln200xa_obj.quit = function()
{
myUln200xa_obj = null;
Uln200xa_lib.cleanUp();
Uln200xa_lib = null;
console.log("Exiting");
process.exit(0);
};
// Run ULN200xa driven stepper
myUln200xa_obj.goForward();
setTimeout(myUln200xa_obj.reverseDirection, 2000);
setTimeout(function()
{
myUln200xa_obj.stop();
myUln200xa_obj.quit();
}, 2000);