JMRI 3.6 / 3.7.1 Dev

This Open Source project provides building tools for model railroad computer control
JMRI (Java Model Railroad Interface) is an open source graphical software written in the Java programming language and designed to offer several building tools for model railroad computer control.

JMRI’s main goal is to be as usable as possible for many people, as it runs anywhere, and tries to be independent of specific hardware systems.

The project is also designed to act as a jumping-off point for developers who want to control their layouts from a computer (Linux, Microsoft Windows and Mac OS X are supported) without having to build an entire system from scratch.

JMRI is comprised of the PanelPro and DecoderPro applications, which can be used by model railroaders to create control panels and configure DCC decoders.

last updated on:
January 17th, 2014, 10:07 GMT
developed by:
The JMRI Community
license type:
GPL (GNU General Public License) 
ROOT \ Games \ Simulation


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What's New in version 3.7.1 Dev
  • OpenLCB library updated to better handle hub operations.
  • Several internal updates for how CV reading and writing is changed to improve handling of indexed CVs. If you have your own code or scripts that write or read CVs directly, check to see if we've broken anything, please.
  • Improved the handling of decoders that contain only long addresses, no short addresses.
  • Peter Ulvestad updated the Hornby 8249 default values.
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