homeostasis by diffusion
Three ESP32 lab manuals. Collective regulation with zero coordination messages —
the endocrine system almost nobody builds, on a bench.
Lab 1 — thermal medium
8 nodes sharing one insulated box of air. Start here.
Lab 2 — shared voltage rail
Every node on one current-limited rail. Fastest to settle.
Lab 3 — shared light / RF field
Diffusion you can see in space.
gauges
These fill as the bench produces them.
awaiting bench
settling curve
awaiting bench
lab-2 scope shot
awaiting bench
lab-3 long-exposure photo
thesis
homeostasis by diffusion, and the loan model of agency
The one rule: the regulating scalar never becomes a packet.
Sense the common bath locally, respond locally.