/* * Author: Stefan Andritoiu <stefan.andritoiu@intel.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. */ //NOT TESTED!!! public class MQ2Sample { private static final short resolution = 5; static { try { System.loadLibrary("javaupm_gas"); } catch (UnsatisfiedLinkError e) { System.err.println("error in loading native library"); System.exit(-1); } } public static void main(String[] args) throws InterruptedException { // ! [Interesting] short[] buffer = new short[128]; // Attach gas sensor to A0 upm_gas.MQ2 sensor = new upm_gas.MQ2(0); upm_gas.thresholdContext ctx = new upm_gas.thresholdContext(); ctx.setAverageReading(0); ctx.setRunningAverage(0); ctx.setAveragedOver(2); while (true) { int len = sensor.getSampledWindow(2, buffer); if (len != 0) { int thresh = sensor.findThreshold(ctx, 30, buffer); sensor.printGraph(ctx, resolution); if (thresh != 0) { System.out.println("---Threshold reached---"); } } Thread.sleep(1000); } // ! [Interesting] } }