serial port

I have not been able to use the B4JPackager11 because the Java 11 JDK's serial port code is broken. While I have on occasion been able to get the serial port stuff work with OpenJDK, it has not been reliable so since my company licenses Oracle Java anyways, I have been using that. I have also...

I read many posts on the forum and got confused about which library is better to use to exchange strings between two com ports on different devices. I plan to use the Lora modem on my USB OTG connector. I have already tested these modems through a regular USB terminal application, the exchange...

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...

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...

Hello friends, This is my first but not last post in forum :D When I checked B4J_chat.zip 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...

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...

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...