DCC-EX Model Railroading
DCC-EX is a team of dedicated enthusiasts producing open source DCC solutions for you to run your complete model railroad layout. Our easy to use, do-it-yourself, and free open source products run on off-the-shelf Arduino technology and are supported by numerous third party hardware and apps like JMRI, Engine Driver, wiThrottle, Rocrail and more.
Releases
If you are just starting with DCC-EX then the sections below are intended to help you understand how our products might suit your needs. We’ve curated this guidance based on feedback from our users:
If these haven’t helped, or you’ve read them and you are still unsure, then feel free to contact us, preferably through our Discord server where you can chat directly with our team members. Details of this and other contact methods on our Contact Us page.

15 May 2023 - DCC-EX Releases 5A EX-MotorShield8874
DCC-EX, a global contributor to DCC open source software for model railroading, is proud to announce the first of our open source hardware products: the EX-MotorShield8874 providing dual 5 amp DCC and DC PWM (pulse width modulation) output for DCC-EX Command Stations.
09 Apr 2023 - Final Version 4 Release (v4.1.5)
We’re excited to announce the final version 4 release of EX‑CommandStation before we move to version 5!
27 Mar 2023 - Version 5 progress and a breaking change in the development branch
We are full steam ahead to a v5.0 release, making sure what’s in there is well tested to the limits of our resources, and has documentation available as we go. Amongst other things, this has resulted in one potentially “breaking” change for users of EX‑RAIL’s capability to run sequences/routes on startup.
Read the full DCC-EX News feed here.
Subscribe to the DCC-EX News RSS/Atom feed using “https://dcc-ex.com/news/atom.xml”.
Where to next?
It is important to understand that different DCC-EX products, and options within those products are targeted at different levels of users, from those who don’t know anything about electronics or software, through to those with a lot of knowledge and experience.
We have tagged the pages to help you understand who they are aimed at. The Choose Your Comfort Level page explains those levels. Keep an eye out on our pages to see at which level of experience our documentation is aimed at.