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104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
/*
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* Author: Jon Trulson <jtrulson@ics.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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#include <iostream>
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#include <stdio.h>
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#include <string.h>
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#include <string>
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#include "hm11.hpp"
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#include "upm_utilities.h"
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using namespace std;
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using namespace upm;
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void
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printUsage(char* progname)
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{
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cout << "Usage: " << progname << " [AT command]" << endl;
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cout << endl;
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cout << "If an argument is supplied on the command line, that argument is" << endl;
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cout << "sent to the module and the response is printed out." << endl;
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cout << endl;
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cout << "If no argument is used, then the address and PIN of the module" << endl;
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cout << "are queried and the results printed out." << endl;
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cout << endl;
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cout << endl;
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}
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// simple helper function to send a command and wait for a response
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void
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sendCommand(upm::HM11& ble, char* cmd)
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{
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char buffer[BUFSIZ];
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ble.writeData(cmd, strlen(cmd));
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// wait up to 1 second
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if (ble.dataAvailable(1000)) {
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memset(buffer, 0, BUFSIZ);
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ble.readData(buffer, BUFSIZ - 1);
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cout << "Returned: " << buffer << endl;
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} else {
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cerr << "Timed out waiting for response" << endl;
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}
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}
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int
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main(int argc, char** argv)
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{
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//! [Interesting]
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// Instantiate a HM11 BLE Module on UART 0
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upm::HM11 ble(0);
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// make sure port is initialized properly. 9600 baud is the default.
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if (!ble.setupTty(B9600)) {
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cerr << "Failed to setup tty port parameters" << endl;
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return 1;
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}
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printUsage(argv[0]);
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if (argc > 1) {
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cout << "Sending command line argument (" << argv[1] << ")..." << endl;
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sendCommand(ble, argv[1]);
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} else {
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// query the module address
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char addr[] = "AT+ADDR?";
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cout << "Querying module address (" << addr << ")..." << endl;
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sendCommand(ble, addr);
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upm_delay(1);
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// query the module address
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char pin[] = "AT+PASS?";
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cout << "Querying module PIN (" << pin << ")..." << endl;
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sendCommand(ble, pin);
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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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return 0;
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}
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