public String Open_USB_Port() {
List<UsbSerialDriver> availableDrivers =
UsbSerialProber.getDefaultProber().findAllDrivers(mUsbManager);
String message = "null";
if (availableDrivers.isEmpty()) {
Log.v(TAG, "No USB Drivers connected");
return "No Drivers Detected";
}
final UsbSerialDriver driver = availableDrivers.get(0);
connection = mUsbManager.openDevice(driver.getDevice());
if (connection == null) {
Log.v(TAG, "No USB connection found");
return "No USB Available";
} else {
final List<UsbSerialPort> portList = driver.getPorts();
port = portList.get(0);
try {
port.open(connection);
port.setParameters(38400, 8, UsbSerialPort.STOPBITS_1, UsbSerialPort.PARITY_NONE);
return "USB Connected";
} catch (IOException e) {
System.out.print("Can't Connect to ELM327!");
// alertView("Connection Problem", "Can't find the ELM327");
}
}
return message;
}
public String Write_USB_Port(byte[] message_press) {
String message = "";
if (connection != null) {
try {
// port.write(message,10);
// byte[] Release =new byte[]{ (byte)0x48, 0x0d };
port.write(message_press, 100);
message = " Sent: " + new String(message_press);
Log.v(TAG, "Value Writing to the Press: " + new String(message_press));
SystemClock.sleep(110);
// new Thread(new Runnable() {
// @Override
// public void run() {
// try {
// Thread.sleep(1500);
// } catch (InterruptedException e) {
// e.printStackTrace();
// }
// }
// }).start();
// SystemClock.sleep(400);
// Thread.sleep(400);
// port.write(message_release, 100);
// HeaderText.append(" Also Sent: " + new String(message_release));
// port.write(concat(message,Release),10);
} catch (IOException e) {
Log.v(TAG, "Error Sending Command!");
message = "Couldn't Send message";
// alertView("Port Error", "Can't Send Message");
}
try {
port.close();
Log.v(TAG, "Port Successfully Closed");
} catch (IOException e) {
Log.v(TAG, "Couldn't close Port");
// alertView("Port Error", "Can't Close Port");
}
} else {
Log.v(TAG, "Not Connected to USB!");
message = "Not Connected to USB";
}
return message;
}