PI4J with LoRa Module

[teceP]

Iam trying to send and read data with my LoRa module, which is connected to my raspberry pi 3.

My setup is the following:

I tried to open on the Default port and on "/dev/ttyS0" but I dont receive any data.

serial = SerialFactory.createInstance();
serial.open(Serial.DEFAULT_COM_PORT, 115200);
//serial.open("/dev/ttyS0", 115200);
serial.addListener(getEventListener());

And my Eventlistener:

    private SerialDataEventListener getEventListener(){
    return serialDataEvent -> {
            try {
               console.println("[HEX] " + serialDataEvent.getHexByteString());
                console.println("[ASCII DATA] " + serialDataEvent.getAsciiString());
                System.out.println("[Data Received]:[" + Optional.ofNullable(new String(serialDataEvent.getBytes(), StandardCharsets.UTF_8)).orElse("Error while getting data.") + "]");
            } catch (IOException e) {
                System.out.println("IO EXCEPTION.");
                e.printStackTrace();
            }
        };
   }

After I open the port, I try to configure with:

serial.write("AT+DEST=FFFF");
serial.write("AT+RX");
serial.write("AT+SAVE");
serial.write("AT+CFG=433500000,5,9,6,1,1,0,0,0,0,3000,8,4");

But I dont receive any data and no one receives any data from me. What am I doing wrong?

Thanks in advance!

[FDelporte]

Not sure if this the problem, but are you sure the serial port is not in use by the OS itself?

See https://pi4j.com/1.2/example/serial.html

_Prerequisites

By default, the serial port on the Raspberry Pi is configured as a console port for communicating with the Linux OS shell. If you want to use the serial port in a software program, you must disable the OS from using this port. Please see this blog article by Clayton Smith for step-by-step instructions on how to disable the OS console for this port: http://www.irrational.net/2012/04/19/using-the-raspberry-pis-serial-port/_

[savageautomate]

Closed. No further activity/response at this time. @FDelporte is right, serial port must be ENABLED in RPi config and DISABLED for system console.