/* * Author: Stefan Andritoiu * Copyright (c) 2017 Intel Corporation. * * This program and the accompanying materials are made available under the * terms of the The MIT License which is available at * https://opensource.org/licenses/MIT. * * SPDX-License-Identifier: MIT */ public class MQ7_Example { public static void main(String[] args) throws InterruptedException { // ! [Interesting] short[] buffer = new short[128]; // Attach gas sensor to A0 upm_gas.MQ7 sensor = new upm_gas.MQ7(0); upm_gas.thresholdContext ctx = new upm_gas.thresholdContext(); ctx.setAverageReading(0); ctx.setRunningAverage(0); ctx.setAveragedOver(2); // Infinite loop, ends when script is cancelled // Repeatedly, take a sample every 2 microseconds; // find the average of 128 samples; and // print a running graph of asterisks as averages while (true) { int len = sensor.getSampledWindow(2, buffer); if (len != 0) { int thresh = sensor.findThreshold(ctx, 30, buffer); sensor.printGraph(ctx, (short) 5); if (thresh != 0) { // do something... } } } // ! [Interesting] } }