serial port

  1. walterf25

    B4J Question COM Port (Serial) Proper Way to Close and Re-Open

    Hi Everyone, I am using the Jserial library to communicate with a device, this device enumerates 3 different COM Ports but only one can be open to communicate with the device, the other two are for debugging purposes, so far everything works as expected, however I had the need to come up with a...
  2. S

    Android Question Newland N910 + N910 Base

    Hi experts, Does anyone here have experience working with Newland based POS devices. Currently building android app to connect to N910 Base via Bluetooth and I'm able start a connection but when I try to send data to it, it does not show up on my laptop. For your information N910 also have a...
  3. erol34

    B4J Tutorial jSerial + AsyncStreamsText + com0com (virtual serial port)

    Hello friends, This is my first but not last post in forum :D When I checked file in Erel's post, I see that there is an old .fxml designer file that can not be recognized by B4J 9.8. I succeed to convert 1.fxml to 1.bjl file and succeed to make communicate Hercules (a terminal...
  4. Mark Read

    B4J Question [Solved] Error on connecting to COM Port

    I am having trouble connecting to a COM Port with the code below. The point is to read data coming from an Arduino. The code works fine on my friends computer but not on mine. Can someone give me a hint where I can look? PC is running Windows 10, 64 Bit. The Arduino IDE is open but the Serial...
  5. Didier9

    B4J Question Problem with Java Serial Connector Library from OpenJDK11

    Not a B4J issue proper, but an issue using it nevertheless... I installed B4J with OpenJDK11. I an getting this error when trying to open a COM port under Win 10 64: # # A fatal error has been detected by the Java Runtime Environment: # # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at...