Electrical engineering systems
Circuits control current and voltage to perform computation, signaling, and power distribution across components and boards.
What It Is
Information is transmitted through the electromagnetic spectrum using modulation, frequency allocation, and protocol layering under physical and regulatory constraints.
What This Domain Trains You To Notice
This domain is valuable because physical and infrastructure systems make constraints legible. They show how components fit together, where tolerance matters, how failure propagates, and what it takes to keep an assembly reliable over time.
Why It Transfers
The broader payoff is transfer. Once you learn to see interfaces, bottlenecks, and feedback in a physical substrate, you get better at spotting the same patterns in software, organizations, and markets. This domain gets more useful when it is compared with adjacent systems instead of being treated as a silo. That is where reusable judgment starts to form.
Related Domains
Kitchen LED Lights
The third room in the Magnolia LED rollout, introducing physical constraints around heat, grease, and the need for actually useful task lighting.
LED Baseboard Lights — Bedroom
Soft baseboard lighting using the WLED ecosystem that shifts color temperature through the day — and revealed that bedroom smart lighting has near-zero tolerance for latency.
LED Lights — Office (WLED & WS2812b)
Individually addressable LED strips controlled by ESP8266/ESP32 running WLED, integrated with Apple HomeKit and Home Assistant to respond to time of day, calendar events, and sensor data.
LEGO ecosystems
Standardized physical components combine via well-defined interfaces into arbitrarily complex assemblies, supported by instructions, supply chains, and a resale market that preserves value and compatibility over time.
Making the House Smarter
Projects wiring up the home with sensors, automation, lighting, audio, and climate systems — learning IoT and embedded hardware by living inside it.
Manufacturing Systems
Systems manage production, materials, workflows, and capacity in physical goods environments.
Mechanical systems
Physical assemblies transfer force and motion through components such as gears and actuators under constraints of energy, friction, and material properties.
Pro audio/visual systems
Signal chains capture, process, and distribute audio and visual data in real time across consoles, amplification, and lighting control systems.
Projects for Fun
Most of what I know about systems, I learned by building things for no reason other than wanting to understand how they work.