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61 lines
2.1 KiB
JavaScript
61 lines
2.1 KiB
JavaScript
/*
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* Author: Zion Orent <zorent@ics.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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var collision_lib = require("jsupm_grovecollision");
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// The was tested with the Grove Collision Sensor
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// Instantiate a Grove Collision on digital pin D2
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var collision_obj = new collision_lib.GroveCollision(2);
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var collisionState = false;
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console.log("No collision");
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// Having an infinate loop prevents nodeJS from catching Cntl-C
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// We need to catch Cntl-C to clean up memory
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// Instead, we check the collision sensor every millisecond
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var myInterval = setInterval(function()
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{
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if (collision_obj.isColliding() && !collisionState)
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{
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console.log("Collision!");
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collisionState = true;
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}
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else if (!collision_obj.isColliding() && collisionState)
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{
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console.log("No collision");
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collisionState = false;
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}
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}, 1);
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// When exiting: clear interval, clean up memory, and print message
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process.on('SIGINT', function()
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{
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clearInterval(myInterval);
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collision_obj = null;
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collision_lib.cleanUp();
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collision_lib = null;
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console.log("Exiting...");
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process.exit(0);
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});
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