Hi
@LukaszK
1. Download the library here:
jSerial library
2. Create a folder to put all your "
Additional libraries" e.g C:\B4X\AdditionalLibraries
3. Create a B4J folder inside it
4. Unzip jSerial.zip into the B4J folder C:\B4X\AdditionalLibraries\B4J. The folder should contains jSerial.jar and jSerial.xml now.
5. Click on the menu Tools->Configure Paths in B4J and edit the path then click Ok
6. Restart B4J IDE or right-click the Libraries Manager tab and click Refresh
7. Now try to check the library is available
8. You can also check the
B4X Getting Started guide