java浠g爜鎬庝箞璺烲ORA鍩虹珯杩炴帴
鍦↗ava涓繛鎺ュ埌LORA鍩虹珯鍙互閫氳繃浣跨敤鐩稿簲鐨凩ORA妯″潡杩涜閫氫俊銆備互涓嬫槸涓€涓ず渚嬩唬鐮侊紝灞曠ず濡備綍鍦↗ava涓娇鐢⊿erialPort杩涜涓插彛閫氫俊鏉ヨ繛鎺ュ埌LORA鍩虹珯锛?/p>
import gnu.io.CommPortIdentifier;
import gnu.io.SerialPort;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
public class LoRaConnection {
private static final int TIMEOUT = 2000;
private static final int BAUD_RATE = 9600;
private SerialPort serialPort;
private InputStream input;
private OutputStream output;
public void connect(String portName) {
CommPortIdentifier portIdentifier;
try {
portIdentifier = CommPortIdentifier.getPortIdentifier(portName);
if (portIdentifier.isCurrentlyOwned()) {
System.out.println("Error: Port is currently in use");
} else {
serialPort = (SerialPort) portIdentifier.open(this.getClass().getName(), TIMEOUT);
serialPort.setSerialPortParams(BAUD_RATE, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
input = serialPort.getInputStream();
output = serialPort.getOutputStream();
System.out.println("Connected to LoRa module on port: " + portName);
}
} catch (Exception e) {
e.printStackTrace();
}
}
public void disconnect() {
if (serialPort != null) {
serialPort.removeEventListener();
serialPort.close();
System.out.println("Disconnected from LoRa module");
}
}
public void sendData(byte[] data) {
try {
output.write(data);
output.flush();
System.out.println("Data sent successfully");
} catch (IOException e) {
e.printStackTrace();
}
}
public byte[] receiveData() {
byte[] buffer = new byte[1024];
int len = -1;
try {
len = input.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
byte[] data = new byte[len];
System.arraycopy(buffer, 0, data, 0, len);
System.out.println("Received data: " + new String(data));
return data;
}
public static void main(String[] args) {
LoRaConnection connection = new LoRaConnection();
connection.connect("/dev/ttyUSB0"); // Replace with the actual port name of your LORA module
connection.sendData("Hello LORA".getBytes());
connection.receiveData();
connection.disconnect();
}
}
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鏂规硶鎺ユ敹鏁版嵁銆傛渶鍚庯紝閫氳繃disconnect()
鏂规硶鍏抽棴涓插彛杩炴帴銆?/p>
璇锋敞鎰忥紝浣犻渶瑕佹牴鎹綘鐨凩ORA妯″潡鐨勫叿浣撳瀷鍙峰拰閫氫俊鍗忚杩涜鐩稿簲鐨勮皟鏁淬€?/p>
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