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84 lines
2.3 KiB
Java
84 lines
2.3 KiB
Java
/*
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* Author: Stefan Andritoiu <stefan.andritoiu@intel.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* This program and the accompanying materials are made available under the
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* terms of the The MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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*/
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//NOT TESTED!!!
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public class HM11_Example {
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private static final int BUFSIZ = 1024;
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private static void printUsage() {
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System.out.println("Usage: java HM11_Example [AT command]");
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System.out.println("If an argument is supplied on the command line, that argument is");
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System.out.println("sent to the module and the response is printed out.");
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System.out.println("If no argument is used, then the address and PIN of the module");
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System.out.println("are queried and the results printed out.");
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}
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private static void sendCommand(upm_hm11.HM11 ble, byte[] cmd) {
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byte[] buffer = new byte[BUFSIZ];
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ble.writeData(cmd);
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// wait up to 1 second
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if (ble.dataAvailable(1000)) {
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ble.readData(buffer);
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} else {
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System.err.println("Timed out waiting for response");
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}
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}
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public static void main(String[] args) throws InterruptedException {
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// ! [Interesting]
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// Instantiate a HM11 BLE Module on UART 0
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upm_hm11.HM11 ble = new upm_hm11.HM11(0);
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// make sure port is initialized properly. 9600 baud is the default.
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if (!ble.setupTty()) {
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System.err.println("Failed to setup tty port parameters");
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System.exit(-1);
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}
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printUsage();
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if (args.length > 0) {
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System.out.println("Sending command line argument (" + args[0] + ")...");
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sendCommand(ble, args[0].getBytes());
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} else {
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// query the module address
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String addr = "AT+ADDR?";
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System.out.println("Querying module address (" + addr + ")...");
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sendCommand(ble, addr.getBytes());
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Thread.sleep(1000);
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// query the module address
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String pin = "AT+PASS?";
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System.out.println("Querying module pin (" + pin + ")...");
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sendCommand(ble, pin.getBytes());
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// Other potentially useful commands are:
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//
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// AT+VERS? - query module version
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// AT+ROLE0 - set as slave
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// AT+ROLE1 - set as master
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// AT+CLEAR - clear all previous settings
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// AT+RESET - restart the device
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//
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// A comprehensive list is available from the datasheet at:
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// http://www.seeedstudio.com/wiki/images/c/cd/Bluetooth4_en.pdf
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}
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// ! [Interesting]
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}
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}
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