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gp2y0a21yk: Initial implementation of the gp2y0a21yk 80cm IR proximity sensor

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Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Zion Orent <zorent@ics.com>
Signed-off-by: Sarah Knepper <sarah.knepper@intel.com>
This commit is contained in:
Jon Trulson
2014-12-05 13:29:36 -07:00
committed by Sarah Knepper
parent 0b7547231f
commit 2d1ff0e318
8 changed files with 282 additions and 0 deletions
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examples/javascript/gp2y0a21yk.js Normal file
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*global */
/*
* Author: Zion Orent <zorent@ics.com>
* Copyright (c) 2014 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.
*/
// JavaScript file for GP2Y0A21YK 80cm IR Proximity Sensor
// analog voltage, usually 3.3 or 5.0
var GP2Y0A21YK_AREF = 5.0;
var SAMPLES_PER_QUERY = 20;
var IRProximity = require('jsupm_gp2y0a21yk');
// Note, for the Grove version of this sensor, due to the way it is wired,
// you need to plug this into the A0 port, where it will use the available
// A1 pin for data.
// Instantiate a GP2Y0A21YK on analog pin A1
var myVolts = new IRProximity.GP2Y0A21YK(1);
// The higher the voltage (closer to AREF) the closer the object is.
// NOTE: The measured voltage will probably not exceed 3.3 volts.
// Every second, print the averaged voltage value (averaged over 20 samples).
setInterval(function()
{
console.log("AREF: " + GP2Y0A21YK_AREF +
", Voltage value (higher means closer): " +
myVolts.value(GP2Y0A21YK_AREF, SAMPLES_PER_QUERY));
}, 1000);
// Print message when exiting
process.on('SIGINT', function()
{
console.log("Exiting...");
process.exit(0);
});