upm/examples/javascript/adxl335.js

/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */

/*
* Author: Zion Orent <zorent@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 analogGyro3Axis = require("jsupm_adxl335");

var g_addnumBool = true;
var g_cycleNum = 0.0;
var g_cycleCount = 0;

// Instantiate an ADXL335 accelerometer on analog pins A0, A1, and A2
var myAnalogGyro3Axis = new analogGyro3Axis.ADXL335(0, 1, 2);

console.log("Please make sure the sensor is completely still.");
console.log("Sleeping for 2 seconds");

var g_myInterval;

setTimeout(function()
{
	console.log("Calibrating...");
	myAnalogGyro3Axis.calibrate();
	// Get values from accelerometer every 0.2 seconds
	g_myInterval = setInterval(runAccelerometer, 200);
}, 2000);

var x = new analogGyro3Axis.intPointer(0);
var y = new analogGyro3Axis.intPointer(0);
var z = new analogGyro3Axis.intPointer(0);

var aX = new analogGyro3Axis.floatPointer(0);
var aY = new analogGyro3Axis.floatPointer(0);
var aZ = new analogGyro3Axis.floatPointer(0);

var outputStr;

function runAccelerometer()
{

	myAnalogGyro3Axis.values(x, y, z);
	outputStr = "Raw Values: X: " + x.getitem(0) +
		" Y: " + y.getitem(0) + 
		" Z: " + z.getitem(0);
	console.log(outputStr);


	myAnalogGyro3Axis.acceleration(aX, aY, aZ);
	console.log("Acceleration: X: " + aX.getitem(0) + "g");
	console.log("Acceleration: Y: " + aY.getitem(0) + "g");
	console.log("Acceleration: Z: " + aZ.getitem(0) + "g");

	console.log(" ");
}


// When exiting: clear interval and print exit message
process.on('SIGINT', function()
{
	clearInterval(g_myInterval);
	console.log("Exiting...");
	process.exit(0);
});