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 import upm_nrf24l01.Callback;
26 
27 //NOT TESTED!!!
28 public class NRF24L01_receiverSample {
29 
30 	static private final byte[] local_address = {0x01, 0x01, 0x01, 0x01, 0x01};
31 	static private final byte[] broadcast_address = {(byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
32 			(byte) 0xFF, (byte) 0xFF};
33 
34 	static {
35 		try {
36 			System.loadLibrary("javaupm_nrf24l01");
37 		} catch (UnsatisfiedLinkError e) {
38 			System.err.println("error in loading native library");
39 			System.exit(-1);
40 		}
41 	}
42 
main(String[] args)43 	public static void main(String[] args) throws InterruptedException {
44 		// ! [Interesting]
45 		upm_nrf24l01.NRF24L01 comm = new upm_nrf24l01.NRF24L01((short) 7, (short) 8);
46 
47 		Callback callback = new ReceiverCallback(comm);
48 
49 		comm.setSourceAddress(local_address);
50 		comm.setDestinationAddress(broadcast_address);
51 		comm.setPayload((short) upm_nrf24l01.javaupm_nrf24l01Constants.MAX_BUFFER);
52 		comm.configure();
53 		comm.setSpeedRate(upm_nrf24l01.speed_rate_t.NRF_250KBPS);
54 		comm.setChannel((short) 99);
55 		comm.setDataReceivedHandler(callback);
56 
57 		while (true) {
58 			comm.pollListener();
59 		}
60 
61 		// ! [Interesting]
62 	}
63 }
64 
65 class ReceiverCallback extends Callback {
66 
67 	private upm_nrf24l01.NRF24L01 comm = null;
68 
ReceiverCallback(upm_nrf24l01.NRF24L01 comm)69 	public ReceiverCallback(upm_nrf24l01.NRF24L01 comm) {
70 		super();
71 		this.comm = comm;
72 	}
run()73 	public void run() {
74 		if (comm != null) {
75 			short[] rx_buffer = comm.getM_rxBuffer();
76 			System.out.print("Received: ");
77 			for (int i = 0; i < rx_buffer.length; i++)
78 				System.out.print(rx_buffer[i]);
79 			System.out.println();
80 		} else {
81 			System.out.println("No NRF24L01 instance given to callback");
82 		}
83 	}
84 }