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The Grimaldi Network · Hardware Surface

The physical layer: high-voltage systems, embedded boards, power electronics.

Engineering write-ups of physical builds, documented with the same rigor as the software portfolio — schematics, measurements, and honest failure notes. The first build logs are in preparation now.

Live instrument

Grid frequency under load — a real droop model

Three phases at 50 Hz. Drag the load and the frequency droops exactly as a synchronous grid does; drag the inertia and watch how fast it moves. This is the physics the hardware on this site exists to serve.

Frequency50.000 Hz
RoCoF0 mHz/s

L1 · L2 · L3 — 230 V phase voltages · Δf = −f·0.04·ΔP · |df/dt| ≤ f·ΔP/2H

Disciplines

Three tracks of physical engineering

Each track publishes complete builds — from first schematic to measured result. No renders passed off as photographs, no specs without instruments behind them.

High Voltage

High-voltage systems

Traction power, substation hardware, protection and measurement chains — the energy layer, up close, from the engineer who digitises it for German rail.

First build log in preparation
Embedded

Embedded control boards

Deterministic controllers, RTOS firmware, signal integrity, and hardware-in-the-loop test rigs that prove the timing before anything touches a real plant.

First build log in preparation
Power Electronics

Power electronics

Inverters, converters, and the switching hardware that connects renewables to real grids — measured, thermally characterised, documented.

First build log in preparation
Method

How every build gets published

The same discipline that governs the software portfolio governs the bench: nothing is claimed that an instrument did not show.

Design & simulate

Schematics and models first. Every build log opens with the design intent and the simulation that justified it.

Build & measure

Real hardware, real instruments. Scope captures, thermal readings and load tests are the evidence — published as recorded.

Publish with receipts

What worked, what failed, and why. Failure notes stay in the record: they are what make the successes credible.