2015-09-08 21:58:36 +03:00
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/*
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* Author: Stefan Andritoiu <stefan.andritoiu@intel.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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2018-02-27 12:12:09 -08:00
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public class MQ303A_Example {
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2015-09-08 21:58:36 +03:00
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public static void main(String[] args) throws InterruptedException {
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2015-10-08 14:30:12 +03:00
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// Instantiate an mq303a sensor on analog pin A0
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2017-04-28 11:39:57 -07:00
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// This device uses a heater powered from an analog I/O pin.
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2015-09-08 21:58:36 +03:00
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// If using A0 as the data pin, then you need to use A1, as the heater
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2017-04-28 11:39:57 -07:00
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// pin (if using a grove mq303a). For A1, we can use the D15 gpio,
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2015-09-08 21:58:36 +03:00
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// setup as an output, and drive it low to power the heater.
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2015-10-08 14:30:12 +03:00
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upm_mq303a.MQ303A mq303a = new upm_mq303a.MQ303A(1, 15);
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2015-09-08 21:58:36 +03:00
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System.out.println("Enabling heater and waiting 2 minutes for warmup.");
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mq303a.heaterEnable(true);
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Thread.sleep(120000);
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2015-10-08 14:30:12 +03:00
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2015-09-08 21:58:36 +03:00
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System.out.println("This sensor may need to warm until the value drops below about 450.");
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2015-10-08 14:30:12 +03:00
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for (int i = 1; i < 10; i++) {
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2015-09-08 21:58:36 +03:00
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int val = mq303a.value();
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System.out.println("Alcohol detected (higher means stronger alcohol): " + val);
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2015-10-08 14:30:12 +03:00
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2015-09-08 21:58:36 +03:00
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Thread.sleep(1000);
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}
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2015-10-08 14:30:12 +03:00
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2015-09-08 21:58:36 +03:00
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mq303a.heaterEnable(false);
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System.out.println("Exiting");
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2015-10-08 14:30:12 +03:00
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}
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2015-09-08 21:58:36 +03:00
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2017-04-28 11:39:57 -07:00
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}
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