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Model Railroad Control Systems offers electronics for Model Railroad Operations. Most of these designs are Open Source which means the designs and code are posted so you can make your own or modify them suit. We offer bare boards and assembled and tested units for those hobbyists who want to use the designs as is and don't want to do procurement and assembly. Our prices are designed to cover the real costs and overheads of manufacturing and distributing the products including the costs of this web site so our prices should be very competitive with what it would cost you to build small quantities yourself. Please contact us about custom modifications or larger quantities.

Our products fall into five groups:

1) Arduino based nodes (cpNodes) for the Computer Model Railroad Interface (CMRI) system and I2C peripherals for them

cpNode System Brochure

cpNode Technical Guide and Assembly Instructions

Our Presentation from the 2014 NMRA Convention

Designing for CMRI with cpNode from the 2015 NMRA Convention

2) Accessories

3) Switch Motors, Drivers and Mounts

4) A Modular Telephone System for Model Railroad use

Electronic Battery Feed Brochure

Electronic Battery Feed Technical Guide and Assembly Instructions

Electronic Battery Feed Application Note - “The Five Minute Phone System”