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!!!
26public class HM11Sample {
27
28	private static final int BUFSIZ = 1024;
29
30	static {
31		try {
32			System.loadLibrary("javaupm_hm11");
33		} catch (UnsatisfiedLinkError e) {
34			System.err.println("error in loading native library");
35			System.exit(-1);
36		}
37	}
38
39	private static void printUsage() {
40		System.out.println("Usage: java HM11Sample [AT command]");
41
42		System.out.println("If an argument is supplied on the command line, that argument is");
43		System.out.println("sent to the module and the response is printed out.");
44		System.out.println("If no argument is used, then the address and PIN of the module");
45		System.out.println("are queried and the results printed out.");
46
47	}
48
49	private static void sendCommand(upm_hm11.HM11 ble, byte[] cmd) {
50		byte[] buffer = new byte[BUFSIZ];
51		ble.writeData(cmd);
52
53		// wait up to 1 second
54		if (ble.dataAvailable(1000)) {
55			ble.readData(buffer);
56		} else {
57			System.err.println("Timed out waiting for response");
58		}
59
60	}
61
62	public static void main(String[] args) throws InterruptedException {
63		// ! [Interesting]
64		// Instantiate a HM11 BLE Module on UART 0
65		upm_hm11.HM11 ble = new upm_hm11.HM11(0);
66
67		// make sure port is initialized properly. 9600 baud is the default.
68		if (!ble.setupTty()) {
69			System.err.println("Failed to setup tty port parameters");
70			System.exit(-1);
71		}
72
73		printUsage();
74
75		if (args.length > 0) {
76			System.out.println("Sending command line argument (" + args[0] + ")...");
77			sendCommand(ble, args[0].getBytes());
78		} else {
79			// query the module address
80			String addr = "AT+ADDR?";
81			System.out.println("Querying module address (" + addr + ")...");
82			sendCommand(ble, addr.getBytes());
83
84			Thread.sleep(1000);
85
86			// query the module address
87			String pin = "AT+PASS?";
88			System.out.println("Querying module pin (" + pin + ")...");
89			sendCommand(ble, pin.getBytes());
90
91			// Other potentially useful commands are:
92			//
93			// AT+VERS? - query module version
94			// AT+ROLE0 - set as slave
95			// AT+ROLE1 - set as master
96			// AT+CLEAR - clear all previous settings
97			// AT+RESET - restart the device
98			//
99			// A comprehensive list is available from the datasheet at:
100			// http://www.seeedstudio.com/wiki/images/c/cd/Bluetooth4_en.pdf
101
102		}
103		// ! [Interesting]
104	}
105}
106