Java物联网硬件开发教程：实现智能停车系统功能

import java.io.IOException;
import com.fazecast.jSerialComm.SerialPort;

public class ArduinoSerialCommunication {

    public static void main(String[] args) {
        SerialPort comPort = SerialPort.getCommPort("COM3"); // 根据实际情况修改串口号
        comPort.setComPortParameters(9600, 8, 1, 0); // 设置串口参数
        comPort.setComPortTimeouts(SerialPort.TIMEOUT_SCANNER, 0, 0); // 设置超时时间

        if (comPort.openPort()) {
            System.out.println("串口已打开成功！");
        } else {
            System.out.println("串口打开失败！");
            return;
        }

        comPort.addDataListener(new SerialPortDataListener() {

            @Override
            public int getListeningEvents() {
                return SerialPort.LISTENING_EVENT_DATA_AVAILABLE;
            }

            @Override
            public void serialEvent(SerialPortEvent event) {
                if (event.getEventType() != SerialPort.LISTENING_EVENT_DATA_AVAILABLE)
                    return;

                byte[] newData = new byte[comPort.bytesAvailable()];
                int numRead = comPort.readBytes(newData, newData.length);
                String receivedData = new String(newData);
                System.out.println("接收到的数据：" + receivedData.trim());
            }
        });

        try {
            System.in.read();
        } catch (IOException e) {
            e.printStackTrace();
        }
        comPort.closePort();
    }
}