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 GroveVDivSample {
27 	private static final short gain3 = 3;
28 	private static final short gain10 = 10;
29 
30 	static {
31 		try {
32 			System.loadLibrary("javaupm_grovevdiv");
33 		} catch (UnsatisfiedLinkError e) {
34 			System.err.println("error in loading native library");
35 			System.exit(-1);
36 		}
37 	}
38 
main(String[] args)39 	public static void main(String[] args) throws InterruptedException {
40 		// ! [Interesting]
41 		// Instantiate a Grove Voltage Divider sensor on analog pin A0
42 		upm_grovevdiv.GroveVDiv vDiv = new upm_grovevdiv.GroveVDiv(0);
43 
44 		// collect data and output measured voltage according to the setting
45 		// of the scaling switch (3 or 10)
46 		while (true) {
47 			long val = vDiv.value(100);
48 			float gain3val = vDiv.computedValue(gain3, val);
49 			float gain10val = vDiv.computedValue(gain10, val);
50 
51 			System.out.println("ADC value: " + val + ", Gain 3: " + gain3val + "v, Gain 10: "
52 					+ gain10val);
53 
54 			Thread.sleep(1000);
55 		}
56 		// ! [Interesting]
57 	}
58 
59 }