1 /*
2  * Author: Stefan Andritoiu <stefan.andritoiu@intel.com>
3  * Copyright (c) 2015 Intel Corporation.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining
6  * a copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be
14  * included in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  */
24 
25 //NOT TESTED!!!
26 public class MHZ16Sample {
27 
28 	static {
29 		try {
30 			System.loadLibrary("javaupm_mhz16");
31 		} catch (UnsatisfiedLinkError e) {
32 			System.err.println("error in loading native library");
33 			System.exit(-1);
34 		}
35 	}
36 
main(String[] args)37 	public static void main(String[] args) throws InterruptedException {
38 		// ! [Interesting]
39 		int[] gas = new int[1];
40 		int[] temp = new int[1];
41 
42 		// Instantiate a MHZ16 serial CO2 sensor on uart 0.
43 		upm_mhz16.MHZ16 co2 = new upm_mhz16.MHZ16(0);
44 
45 		System.out.println("Make sure that the sensor has had at least 3 minutes to warm up");
46 		System.out.println("or you will not get valid results.");
47 		System.out.println("The temperature reported is not the ambient temperature,");
48 		System.out.println("but rather the temperature of the sensor elements.");
49 
50 		while (true) {
51 			co2.getData(gas, temp);
52 			System.out.println("CO2 concentration: " + gas[0] + "PPM, Temperature (in C): "
53 					+ temp[0]);
54 
55 			Thread.sleep(2000);
56 		}
57 		// ! [Interesting]
58 	}
59 }