uLI – Ultimate LI

Ultimate LI is a DIY implementation of the Lenz Interface. It is a fully operable XpressNET to PC converter.

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What is uLI?

Ultimate LI is a simple, opensource and openhardware implementation of the original Lenz Interface developed in KMZ Brno I (Model Railroader Club in Brno, Czech Republic). This project constists of a PCB layout design and a firmware to the main CPU on the board. uLI connects to any command station supprosting XpressNET 3.0 or 3.6. On the other side, uLI is connected directly to the PC via simple USB cable. After installation of a simple driver, PC sees uLI simply as a serial port. This allows common application such as JMRI to connect to you command station. uLI is available for free and for everyone. All materials are in public repositories and everyone is welcome to contribute to this project!

Small & easy to use

Ultimate LI fits into 7×5×3 cm case. Just connect your uLI to the XpressNET and to the PC. Yes, that's all. Such simple.

Compatible with common applications

Every application supporting LI101 of LI101F is also compatible with uLI. We heavily use uLI with JMRI and hJOP for both normal traffic and programming.

Opensource & openhardware

All the source codes and other materials are available in public GIT repositories.