Firmware at Scale: Managing Features, Memory, and Usability on the ESP32
How real memory limits, multiple node roles, and DIY usability constraints shaped how firmware is built, delivered, and deployed in LCC Fusion.
Why LCC Fusion Exists
Explains the architectural problems LCC Fusion was created to solve, and why a systems-first approach matters before wiring, configuration, or hardware choices.
Start Here
LCC Fusion is easiest to understand when the posts are treated as a guided map, not just a date-ordered blog.
Explore By Topic
Concepts and Architecture
Build and Install
- Building The LCC Fusion Node Card
- Creating Cables for Plug & Play Layout Automation
- Installation Example: Detection, Signals & Turnouts
Hardware and Testing
Project and Documentation
Latest Articles
From Observations to Automation: The Architectural Journey Behind LCC Fusion
How early observations about LCC events, open-source foundations, and flexible hardware led to an interaction-focused automation architecture in LCC Fusion.
Implementing Distributed Power in a Layout-Centric System
Well-planned layouts already distribute power, but modern electronics require clean, regulated, and protected supplies. This tutorial explains how distributed power is implemented using three power levels, centralized hubs, optional downstream distribution, and local board-level conversion. By combining layout power, regulated pod power, and on-board protection, the system balances capacity, wiring simplicity, and electrical isolation.
Built-In Self-Testing: Making Modular Electronics Trustworthy
DIY PCBs rarely fail in obvious ways. This post explains how built-in self-testing in the LCC Fusion project validates power, communications, external boards, and attached ICs—providing fast, practical confidence before modular hardware is placed into service.
Customizing Just the Docs
A practical Just the Docs layout fix that stops wasting screen space and improves sidebar and content readability.
Latest Podcasts
Navigating the LCC Fusion Posts Site
A guided tour of the LCC Fusion Posts website — how updates, tips, and podcast episodes work together as part of the Fusion ecosystem.
Installation Example: Detection, Signals & Turnouts
A step-by-step installation walkthrough using the BOD Card, Signal PWM Card, and Turnout Card — all tied together through the Node Card.
Fusion Hardware Architecture Overview
A high-level walkthrough of Fusion’s tiered hardware architecture, open-source philosophy, and the modular design that makes expansion easy.
BSD Card & Block Breakout Board
Short detection and block protection using the BSD Card and the Block Breakout Board
BOD Card & Breakout Board
Train detection with the Block Occupancy Detection (BOD) Card and its Breakout Board