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52 lines
1.9 KiB
JavaScript
52 lines
1.9 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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var voltageDivider = require('jsupm_grovevdiv');
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// Instantiate a Grove Voltage Divider sensor on analog pin A0
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var myVoltageDivider = new voltageDivider.GroveVDiv(0);
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// collect data and output measured voltage according to the setting
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// of the scaling switch (3 or 10)
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var val, gain3val, gain10val;
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function getVoltageInfo()
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{
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val = myVoltageDivider.value(100);
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gain3val = myVoltageDivider.computedValue(3, val);
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gain10val = myVoltageDivider.computedValue(10, val);
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console.log("ADC value: " + val + " Gain 3: " + gain3val
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+ "v Gain 10: " + gain10val + "v");
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}
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setInterval(getVoltageInfo, 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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myVoltageDivider = null;
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voltageDivider.cleanUp();
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voltageDivider = null;
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console.log("Exiting...");
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process.exit(0);
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});
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