import javax.comm.*;
public class SerialCommunication {
public static void main(String[] args) {
SerialPort serialPort;
try {
CommPortIdentifier portId = CommPortIdentifier.getPortIdentifier("COM1");
serialPort = (SerialPort) portId.open("SerialCommunication", 2000);
serialPort.setSerialPortParams(9600, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
InputStream in = serialPort.getInputStream();
OutputStream out = serialPort.getOutputStream();
String data = "Hello, Serial Device!";
out.write(data.getBytes());
byte[] buffer = new byte[1024];
int len = in.read(buffer);
String receivedData = new String(buffer, 0, len);
System.out.println("Received data: " + receivedData);
in.close();
out.close();
serialPort.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
properties
javax.comm.SerialPort = com.example.SerialPortImpl
