based on: https://github.com/mik3y/usb-serial-for-android

to pull the logging data to local: adb pull /storage/emulated/0/Download/sensor_log.txt ~/Downloads

To-Do:

1. need to refactor the code: especially the terminalfragment

public class LoggingService extends Service { private SensorManager sensorManager; private USBCommunicationManager usbCommunicationManager; private FileManager fileManager;

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    // Initialize your managers here
    this.sensorManager = new SensorManager(getApplicationContext());
    this.usbCommunicationManager = new USBCommunicationManager(getApplicationContext());
    this.fileManager = new FileManager(getApplicationContext());

    // Start logging process
    startLogging();

    return START_STICKY;
}

private void startLogging() {
    // Implement your logging logic here
}

@Override
public void onDestroy() {
    super.onDestroy();
    // Stop the logging process
}

@Override
public IBinder onBind(Intent intent) {
    // Return null as this service doesn't support binding
    return null;
}

}

Create the SensorManager Class Move all sensor-related operations to a SensorManager class. This class will handle sensor initialization, data processing, and any sensor-related logic.

SensorManager Class Skeleton: java Copy code public class SensorManager { private final SensorEventListener sensorEventListener;

public SensorManager() {
    // initialize sensors and event listener
}

public void startListening() {
    // start listening to sensor events
}

public void stopListening() {
    // stop listening to sensor events
}

// other sensor-related methods

} Step 3: Create the USBCommunicationManager Class This class will handle all USB communication. It should manage connecting, sending, and receiving data over USB.

USBCommunicationManager Class Skeleton: java Copy code public class USBCommunicationManager { // USB communication setup and management

public void connect() {
    // method to establish USB connection
}

public void disconnect() {
    // method to disconnect USB
}

public void sendData(String data) {
    // method to send data over USB
}

public void receiveData() {
    // method to receive data from USB
}

// other USB communication methods

} Step 4: Create the FileManager Class This class will be responsible for file operations like creating, writing, and reading files.

FileManager Class Skeleton: java Copy code public class FileManager { private File file;

public FileManager() {
    // initialize file
}

public void writeToFile(String data) {
    // write data to file
}

// other file operation methods

}