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55 lines
2.0 KiB
JavaScript
55 lines
2.0 KiB
JavaScript
/*
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* Author: Zion Orent <zorent@ics.com>
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* Copyright (c) 2014 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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//Load Grove Moisture module
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var grove_moisture = require('jsupm_grovemoisture');
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// Instantiate a Grove Moisture sensor on analog pin A0
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var myMoistureObj = new grove_moisture.GroveMoisture(0);
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// Values (approximate):
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// 0-300, sensor in air or dry soil
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// 300-600, sensor in humid soil
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// 600+, sensor in wet soil or submerged in water
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// Read the value every second and print the corresponding moisture level
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setInterval(function()
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{
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var result;
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var moisture_val = parseInt(myMoistureObj.value());
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if (moisture_val >= 0 && moisture_val < 300)
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result = "Dry";
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else if (moisture_val >= 300 && moisture_val < 600)
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result = "Moist";
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else
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result = "Wet";
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console.log("Moisture value: " + moisture_val + ", " + result);
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}, 1000);
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// Print message when exiting
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process.on('SIGINT', function()
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{
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console.log("Exiting...");
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process.exit(0);
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});
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