The WHEELY9000
The WHEELY9000 is the hamster mining device that records wheel activity as work, with independent video.
TL;DR
- The WHEELY9000 is the hamster mining device: it records accepted wheel-magnet passages as work.
- A sensor detects the magnet, and a small computer applies the counting rules and saves accepted work in ten-minute rounds.
- Independent cameras provide video on a separate path from measurement.
What is the device?
The WHEELY9000 uses a wheel-mounted magnet and a sensor to record accepted passages. Each accepted passage is one work unit, which can settle on Ethereum and complete Squeek blocks.
How it works
The magnet produces active and inactive readings from the Hall sensor. A Raspberry Pi Pico passes them to a Raspberry Pi, which applies the counting rules and saves accepted passages in ten-minute rounds. The production signing chip signs saved records for delivery to the Oracle.
Measurement and video run independently. Counting and round closure continue through a camera outage, and accepted sensor records, not video, determine work.
Technical detail: hardware responsibilities
| Part | Function | Boundary |
|---|---|---|
| Wheel and magnet | Trigger active/inactive sensor readings | Do not identify what moved the wheel or in which direction |
| Hall sensor and Pico | Send readings with their order and timing | Do not count accepted work, close rounds, or sign records |
| Pi measurement service | Check counting rules and save passages and completed rounds | Cannot replace uncertain measurements with guesses |
| Durable SQLite state | Save work, round history, and records awaiting delivery | Must be preserved, unlike a replaceable display cache |
| Production signing chip | Sign records with a key that cannot be exported | Cannot verify the data supplied by its host |
| Cameras | Supply independent video feeds | Cannot access the measurement database or authorize settlement |
Public playback provides video without exposing camera controls or publishing credentials.
Rules and boundaries
- One accepted passage is one work unit. It doesn't prove that an animal completed a wheel revolution.
- At startup, the Pi must observe an inactive sensor before counting a new passage.
- Camera or playback failure alone doesn't stop counting, round closure, or measurement delivery, and video can't fill gaps in the sensor record.
- The public feed carries no microphone audio.
- The WHEELY9000 does not hold settlement signer or relayer keys.
- Software updates must preserve saved measurement history; an update does not justify resetting the counter.
Separate reporting histories
Each total belongs to one reporting history, so don't compare totals across installations or counter resets.
Related pages
- Measuring wheel activity
- Privacy
- What the system proves