Example: comms_serial_port_example

C++ example source code:

/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          https://www.mrpt.org/                         |
   |                                                                        |
   | Copyright (c) 2005-2021, Individual contributors, see AUTHORS file     |
   | See: https://www.mrpt.org/Authors - All rights reserved.               |
   | Released under BSD License. See: https://www.mrpt.org/License          |
   +------------------------------------------------------------------------+ */

#include <mrpt/comms/CSerialPort.h>

#include <iostream>
#include <memory>

using namespace mrpt::comms;
using namespace std;

int main()
{
    try
    {
        std::unique_ptr<CSerialPort> serPort;

        string serName;

        cout << "Serial port test application: Use it with a loopback serial "
                "port (pins 2-3 connected)"
             << endl;

        cout << "Enter the serial port name (e.g. COM1, ttyS0, ttyUSB0): ";
        getline(cin, serName);

        cout << endl;
        cout << "Opening serial port...";
        serPort = std::make_unique<CSerialPort>(serName);
        cout << "OK" << endl;

        cout << "Setting timeouts...";
        serPort->setTimeouts(100, 1, 100, 1, 100);
        cout << "OK" << endl;

        cout << "Setting baud rate...";
        serPort->setConfig(500000);
        cout << "OK" << endl;

        for (int i = 0; i < 10; i++)
        {
            // Test write:
            cout << "Writing test data...";
            const char buf1[] = "Hello world!";
            size_t written = serPort->Write(buf1, sizeof(buf1));
            cout << written << " bytes written." << endl;

            // Read:
            cout << "Reading data...";
            char buf2[100];
            size_t nRead = serPort->Read(buf2, sizeof(buf2));
            cout << nRead << " bytes read: '";

            buf2[nRead] = 0;
            cout << buf2 << "'" << endl;
        }
    }
    catch (const std::exception& e)
    {
        cerr << e.what() << endl;
        return -1;
    }

    return 0;
}