import jssc.*;

public class SerialTest
{

    private static SerialPort serialPort;
    private static final String PORTNAME = "COM3";
    private static final int BAUDRATE = 115200;
    private static final int DATABITS = 8;
    private static final int STOPBITS = 1;
    private static final int PARITY = 0;

    public static void main(String[] args)
    {
        instantiateSerialPort();
        openSerialPort();
        setupSerialPortParameters();

        try
        {
            serialPort.writeString("1");
            // System.out.println("\n\"Hello World!!!\" successfully written to port: " + serialPort.writeBytes("Hello World!!!".getBytes()));
        }
        catch (SerialPortException ex)
        {
            System.out.println(ex);
        }

        closeSerialPort();
    }

    private static void instantiateSerialPort()
    {
        System.out.println("Instantiating Serial Port \"" + PORTNAME + "\"");
        serialPort = new SerialPort(PORTNAME);
    }

    private static void setupSerialPortParameters()
    {
        try
        {
            System.out.println();
            System.out.println("Setting Serial Port Parameters:");
            System.out.println("Baudrate: " + BAUDRATE + ".");
            System.out.println("Data-Bits: " + DATABITS + ".");
            System.out.println("Stop-Bits" + STOPBITS + ".");
            System.out.println("Parity: " + PARITY + ".");
            serialPort.setParams(BAUDRATE, DATABITS, STOPBITS, PARITY);
        }
        catch (SerialPortException ex)
        {
            System.out.println(ex);
        }
    }

    private static void openSerialPort()
    {
        try
        {
            System.out.println();
            System.out.println("Trying to open serial port");
            serialPort.openPort();
            System.out.println("Serial port opened.");
        }
        catch (SerialPortException ex)
        {
            System.out.println(ex);
        }
    }

    private static void closeSerialPort()
    {
        try
        {
            System.out.println();
            System.out.println("Trying to close serial port.");
            serialPort.closePort();
            System.out.println("Serial port closed.");
        }
        catch (SerialPortException ex)
        {
            System.out.println(ex);
        }
    }

}