F451 Labs

Preservation of Order — Alarm Dashboard

Sun, 31 May 2026 00:00:00 +0000

PRESERVATION OF ORDER iot-hound-01

TEMP °F --

WHISPER --

SEASHELL % --

—

no alerts on record

LAST ALERT —

Relative humidity is a temperature measurement

Sun, 31 May 2026 00:00:00 +0000

Filed under best practices, because it is the kind of thing that is easy to get wrong and expensive to notice later.

Relative humidity is not an independent quantity. It is the ratio of the water vapor actually present to the most the air could hold at that temperature, expressed as a percentage. The denominator — saturation vapor pressure — climbs steeply with temperature: roughly 7% per °C near room temperature. So the same absolute amount of water in the air reads as a different RH at 20°C than at 25°C. A relative humidity figure without the temperature it was measured at is half a reading.

Sector Field Map

Sun, 31 May 2026 00:00:00 +0000

IOT-HOUND-01 / MONTAG

--°F

no signal

IOT-HOUND-02 / MILDRED

--°F

no signal

sim-01

Mon, 25 May 2026 00:00:00 +0000

The synthetic first device — the simdev stand-in for hardware. Live values update over SSE as readings arrive; the table below is the recent backlog from the logger.

LIVE READOUT sim-01

TEMP -- °C

RH -- %

LAST CONTACT --

RECENT READINGS sim-01

TIME (UTC)	METRIC	VALUE
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Synthetic Telemetry

Mon, 25 May 2026 00:00:00 +0000

The first thing to report to the telemetry service is not a sensor in a room. It is a program on the desk. Before any board is flashed, a synthetic device stands up, onboards through the same provisioning flow as hardware, and posts readings on an interval — so the service has a producer to receive, the readout has something to show, and the failure modes are rehearsed where they are cheap to fix.

Applied Logic

Wed, 20 May 2026 00:00:00 +0000

This is the founding entry. It records the logic the lab applies to everything that follows, so that later Directives can assume it rather than restate it.

F451 Labs exists to build small, legible systems — sensors, microcontrollers, the software that reads them — and to write down what happened. The premise is narrow on purpose. A project is worth a Directive only if it ran, produced data, and taught something that survives the writing-up.

About

Sat, 16 May 2026 00:00:00 +0000

F451 Labs is a personal field archive — one person’s record of what they built, what they learned, and what they found worth keeping. The primary material is technology: IoT hardware, microcontrollers, and the software that makes physical things talk to networks. Not every book. This one.

The record splits three ways. Directives are projects: numbered, documented, built to run. They read like field reports because that is what they are — what was attempted, what held, what failed under load. Dispatches are everything around the work — notes, observations, the occasional argument with a datasheet. Filed is the record worth preserving on its own terms: climate data, educational material, scientific reference, and best practices. The things kept precisely because they are inconvenient to ignore.

Dispatch 01: Online

Sat, 16 May 2026 00:00:00 +0000

F451 Labs is live. Hardware projects pending — Directives will follow.