Home | History | Annotate | Download | only in java 
      1 /*
      2  * Author: Stefan Andritoiu <stefan.andritoiu (at) 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 GroveEHRSample {
     27 
     28 	static {
     29 		try {
     30 			System.loadLibrary("javaupm_groveehr");
     31 		} catch (UnsatisfiedLinkError e) {
     32 			System.err.println("error in loading native library");
     33 			System.exit(-1);
     34 		}
     35 	}
     36 
     37 	public static void main(String[] args) throws InterruptedException {
     38 		// ! [Interesting]
     39 		// Instantiate a Grove Ear-clip Heart Rate sensor on digital pin D2
     40 		upm_groveehr.GroveEHR heart = new upm_groveehr.GroveEHR(2);
     41 
     42 		// set the beat counter to 0, init the clock and start counting beats
     43 		heart.clearBeatCounter();
     44 		heart.initClock();
     45 		heart.startBeatCounter();
     46 
     47 		while (true) {
     48 			long millis = heart.getMillis();
     49 			long beats = heart.beatCounter();
     50 
     51 			// heartRate() requires that at least 5 seconds pass before
     52 			// returning anything other than 0
     53 			int hr = heart.heartRate();
     54 
     55 			// output milliseconds passed, beat count, and computed heart rate
     56 			System.out.println("Millis: " + millis + ", Beats: " + beats + ", Heart rate: " + hr);
     57 
     58 			Thread.sleep(1000);
     59 		}
     60 		// ! [Interesting]
     61 	}
     62 }