serial port

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...