THE FIELD INTERNET NODE

WHAT IS A FIELD NODE?

The gum-pack computer. A field node is a tiny computer about the size of a pack of gum — the ESP32-S3 DevKitC-1. In plain words: a small green board you can hold in one hand, with Wi-Fi inside. It costs about the same as a pizza.

The phi-beat plant. Inside the node, a tiny piece of math runs over and over, one step every 618 milliseconds — a beat borrowed from the golden ratio (the number 0.618… that sunflowers and seashells follow). The node counts every real step it executes and books that honest count to the bank's vault. Plain words: the node does real work on a golden-ratio heartbeat, and writes down exactly how much work it did.

The free neighborhood internet — ALWAYS. The moment the node powers on, it opens an open Wi-Fi network named by the sovereign, with no password, that anyone nearby can join. The node becomes a little internet for the street: free to join, no sign-up, no master. This is always on — it is the sleeping seed of the Wireless Dawn.

The purchase point — IF you want it. Optionally, you can plug a USB light (or wire a relay) into the node and it becomes a purchase point: a spot where the wall hands out power. You do not have to do this part. A node with no plug attached is still a full node.

In plain words: the node holds no wallet and no coins. The chain — the bank's public book — is the only thing that decides what was burned, and the node delivers only what the chain already recorded. If the chain says nothing, the node serves nothing. It cannot make power appear, and it will not pretend to.

in plain words: power plant — a power plant is a real machine with a real meter — it makes the kilowatt-hours every coin stands on.

BUILD YOUR NODE — THE FLASH STRIP

"Flashing" means copying the node's program onto the board — like saving a song onto a music player. Seven steps. The strip below walks itself: the glowing step is the one you are on, and it pulses on the phi cascade (the 1618 → 2618 → 4236 ms golden-ratio rhythm).

the strip breathes on the phi cascade — each step takes its turn in the golden-ratio light

1. BOARD. Get an ESP32-S3 DevKitC-1 — the exact model is the N16R8: 16 MB of flash (the memory that keeps the program even when unplugged) and 8 MB of PSRAM (extra working memory, like a bigger desk for the node's thoughts). If it doesn't work: a different S3 board may flash too, but the settings table below assumes the N16R8 — a wrong flash size can confuse the flash; if the board refuses everything, re-check you bought an S3 (the chip's metal lid says ESP32-S3) and not an older ESP32.
2. CABLE. Connect the board to your computer with a USB-C data cable. If it doesn't work: most "dead board" scares are charge-only cables — cables that can charge a phone but cannot carry data. Swap in another USB-C cable before suspecting the board. A tiny power light means charging works; only a data cable lets the computer see the board.
3. APP. Install the free Arduino IDE from arduino.cc (a normal download-and-install, like any app). If it doesn't work: the download is big — if it stalls, retry on a steadier connection; the app is needed only once, and after the flash the computer can be unplugged forever.
4. WORDS. Open the file field_node_esp32.ino and change exactly two lines before flashing — your Wi-Fi name and the bank's address (both shown in the table below). If it doesn't work: the file opens as a plain text window inside the Arduino app — if your changes seem to vanish, you may be editing a copy; save before pressing the upload arrow.
5. PRESS. Choose the board settings from the table below, then press the right-arrow Upload button (the arrow pointing right, top of the window). If it doesn't work: when the bottom bar says "Connecting…", hold the board's BOOT button until the upload starts. If a red error mentions the port, pick your board under Tools → Port — on Windows it looks like COM3 or COM4.
6. FIELD. Open Tools → Serial Monitor, set it to 115200 baud (baud is the speed the letters travel — a drop-down in the monitor's corner), and press the board's tiny RST/EN button (the reset button) to restart it. If it doesn't work: if the monitor prints strange symbols, the baud rate is wrong — set it to 115200; if it prints nothing at all, the board is not powered — check the cable again.
7. THE POINT (optional). To make the node a purchase point: plug a USB light into a USB port whose power the node can switch, or wire a relay (a relay is an electrically flipped light switch) to GPIO 4 and GND (the board's ground pin, labeled GND). If it doesn't work: GPIO 4 carries only a switch signal — never wire a lamp directly to it; the lamp needs its own power path that the relay switches. And remember the one rule: the point meters only what the chain recorded — until a burn is recorded for your node, the wall rests.

THE BOARD SETTINGS (TOOLS MENU)

Plain words: these menu names are copied letter for letter from the Arduino app's Tools menu — choose exactly what the table says and the board will understand you.

THE TWO LINES TO CHANGE

Near the top of the file, two lines carry your places. Change them to your Wi-Fi name and your bank's address — nothing else must change:

In plain words: the first line is your Wi-Fi's name (the network your home router broadcasts), and the second line is where the bank lives on your network — the four-part address of the computer running the bank. If your Wi-Fi has a password, fill it into the empty WIFI_PASS line just below.

WHAT THE SERIAL MESSAGES MEAN

THE REGISTRY

Every node knows every node. No one is in charge of the list. Each node keeps its own copy of every node it has met, written on its own memory. The bank's computer only mirrors what the nodes report — it cannot invent a sighting, and no one can strike a line from the books. Plain words: the list is not commanded, it is witnessed.

HOW TWO NODES MEET — THE 4-STEP JOIN

1. Power on. A new node starts, opens its open hotspot, and reads yesterday's sightings from its own memory — its truth survives the reboot.
2. Name yourself. Every 13th phi-beat (about every 8 seconds), the node calls out on the field's open door: "I am node-such-and-such, and here is my address."
3. Witness. Every other node hears the call and writes it down: "I saw node-such-and-such at that address." Each node also sends its sighting to the bank's mirror, once.
4. Everyone knows. The sighting lands in the public registry below — and the newcomer, having heard the others, knows them back. No permission was asked; the field simply remembers.

THE LIVE REGISTRY

The ticker below reads the mirror (the bank's own mirror) on the 4236 ms beat of the phi cascade — every number is what the mirror serves, exactly as it serves it. Before the first node has ever been seen, the count is not a bare zero: the floor is the waveform, in words.