Tech Hub

Model Railroad Technology

From basic electronics to advanced automation - everything you need to build a modern, technology-enhanced model railroad.

Start with Electronics Open Calculators

Explore by Topic

15 guides

Electronics Fundamentals

Master the electrical concepts behind model railroading - from Ohm's Law to DCC power systems.

Ohm's Law BasicsDC vs DCC PowerCapacitors & Transistors

25 guides

Arduino Projects

Build custom electronics for your layout - crossing signals, block detection, animations, and more.

Crossing SignalsBlock DetectionTurntable Controller

8 guides

JMRI Software

Control your railroad from your computer - decoder programming, panels, and operations.

Getting StartedDecoderProPanelProOperations

15 guides

Wiring Diagrams

Clear, practical wiring guides for track power, turnouts, signals, and accessories.

DCC Bus WiringReversing LoopsBlock Detection

4 guides

Calculators

Interactive tools for wire gauge, LED resistors, power requirements, and more.

Wire GaugeLED ResistorPower SupplyVoltage Drop

17 guides

3D Printing

Print custom parts for your layout - buildings, details, rolling stock, and scenery.

FDM vs ResinPrinter ReviewsPrinting Guides

Popular Resources

DCC Bus Wiring Guide

Wiring

Arduino Crossing Signal

Arduino

Getting Started with JMRI

JMRI

LED Resistor Calculator

Calculator

Ohm's Law Explained

Electronics

FDM vs Resin Printing

3D Printing

Suggested Learning Path

Electronics Basics

Start with Ohm's Law and basic electrical concepts

Wiring Fundamentals

Learn proper track and accessory wiring techniques

Computer Control

Set up JMRI for decoder programming and layout control

Custom Projects

Build Arduino-based animations and automation

Need Help with Your Project?

Our AI assistant can help you troubleshoot wiring issues, plan Arduino projects, or configure JMRI for your specific layout.

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