Downloads leJOS RCX

leJOS RCX for Win32
Download version 2.1.0
Download API docs
View Win32 Installation Notes
leJOS RCX for Linux/OSX/Solaris
Download version 2.1.0
Download API docs
View Unix Install Notes
Download Area at Sourceforge
Other releases, notes, dates and sizes are available at the SourceForge download area.
LDT - leJOS Development Toolset

This eclipse plug-in allows you to develop java code for the LEGO RCX brick using the leJOS JVM (please see It offers easy configuration through a project wizard and a preference page, uses eclipse code building and adds RCX specific operations both for firmware and byte-code download. Eclipse 2 and 3 are supported.

Download plugin for Eclipse IDE

leJOS RCX 3 (release candidate)

leJOS 3 will be the final release for the RCX, incorporating all the enhancements to lejOS made since the 2.1.0 release in 2003.

Release Candidate 2 (17th of September, 2006):

assemblied by Matthias Paul Scholz

Disclaimer: Java is a trademark of Sun Microsystems. Lego Mindstorms is a trademark of the LEGO Group. There is no association between Lego and leJOS or Sun and leJOS, or even between Lego and Sun as far as we know.

Powered by Esmeta 1997-2009