Hardware

Low latency. High fibre.

Three devices that turn ceramic into infrastructure. Each one carries a secure element, signs every event and refuses to be fooled by a replay attack.

SN-MINI / REV B

ShitNode Mini

Fits any toilet. Judges every toilet.

Clip-on water-flow sensor for the supply line. Detects refill volume and duration, signs the event, ships it over Wi-Fi.

MCU: ESP32-C6 (RISC-V, Wi-Fi 6, BLE 5)
Sensor: Hall-effect flow, 0.3–30 L/min
Secure element: ATECC608-class, ed25519 device key
Power: CR123A or USB-C, ~14 months
Install: Tool-free clamp, 9 seconds
Price: TBA

Flow turbineHall sensorSecure elementStatus LEDClamp shell

SN-PRO / REV C

ShitNode Pro

For the serious producer.

Tank-mounted ultrasonic level sensing plus time-of-flight lever detection. Tells a dual-flush low from a high. Optional LoRa for the sewer mesh.

MCU: ESP32-C6 + LoRa SX1262 (opt.)
Sensors: Ultrasonic level, ToF lever, temp
Profiles: dual-low · dual-high · single · double-flush
Display: 0.96" OLED status window
Secure element: ATECC608-class, monotonic counter
Price: TBA

Ultrasonic headToF lever eyeOLED windowLoRa radioTank mount

TH-01 / CONCEPT

THRONE-01 Validator

Concept only. Please do not wire money to anyone claiming to sell you one.

A mirror-gold flushometer toilet with the node built into the flush valve. Every pull of the handle is signed at the source. The seat is heated, because validator uptime matters.

Compute: Node inside the flush-valve housing
Sensors: Flushometer valve, supply-line flow, seat occupancy
Finish: Mirror gold. Fingerprints are on-chain too.
Status: Valve-cap LED, blinks on every verified flush
Seat: Heated. Validator uptime is a priority.
Price: Concept. Not for sale.

Flush-valve nodeSupply-line sensorStatus LEDWall flangeHeated seat

Firmware

Device protocol

Provisioning

The keypair is generated inside the secure element at the factory. The public key is registered to the deviceId, and the private key never leaves the chip.

Signing

Every flush is signed as canonical JSON with a monotonic counter. See /protocol for the payload.

Transport

HTTPS over Wi-Fi by default, with LoRa to a gateway on the Pro. Offline events queue and replay in order.

Waitlist