Tag Archive: rs232

This sample shows you how to read a barcode scanner using the AUX port. You must have the correct settings to communicate successfully with your device. The settings for the port may be set using the setSerialPortParams() method. This method can only be called after the port has been successfully opened.

package barcodescanner;

import com.integpg.comm.AUXSerialPort;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

public class BarcodeScanner {
    private static int BAUD = 19200;

    public static void main(String[] args) {
        AUXSerialPort auxPort = null;

        try {
            // init the aux port
            auxPort = new AUXSerialPort();
            // open the port
            System.out.println("Open the AUX Serial Port");
            // set the parameters
            System.out.println("Set port parameters to " + BAUD + ", 8, none, 1");
            auxPort.setSerialPortParams(BAUD, 8, 1, 0);
        } catch (Exception ex) {
            // cant open the serial port so exit

        try {
            // create our reader
            InputStream is = auxPort.getInputStream();
            InputStreamReader isr = new InputStreamReader(is);
            BufferedReader br = new BufferedReader(isr);

            // read the barcodes
            System.out.println("Ready to Scan Barcodes...");
            String line = null;
            // read the serial port in a loop to get all of the barcodes.  each barcode is 
            // terminated by a linefeed.  That means we can use readLine()
            while ((line = br.readLine()) != null) {
                System.out.println("Barcode: " + line);
        } catch (Exception ex) {