PNDLM
An instrument for asking
SESSION 0417 · REPLAY · ROTATION CW

An ancient practice, given a real instrument panel.

A physical divination pendulum and the app that reads it. Motion, rotation, magnetic field, temperature and light — sampled twenty-six times a second, recorded, replayable, and exportable down to the last data point.

26/s
Sample rate
5
Sensors
6
Boards
1×–8×
Replay speed
01 · The reading system

Rotation is the answer. Not where it swings — which way it spins.

Four motions, four readings. Each one is drawn from a real recorded trajectory, not an illustration. Hover or tap a card to replay it.

02 · The zero point

Ten seconds of stillness before anything counts.

Every session opens the same way. The pendulum hangs still while the app learns what not moving means for this person, this room, this moment — hand tremor, table vibration, sensor noise. Everything after is judged against that floor.

It is the closest thing the product has to a held breath. Treated here as the ritual it is, rather than a progress bar.

Hand tremor— —
Ambient vibration— —
Magnetic drift— —
Noise floor— —
10
Hold still
03 · The honesty rule

We keep what the sensors measured separate from what you choose it means.

This is the product's spine, and the reason a skeptic can sit with it. No animation fakes or exaggerates a reading. When the data is poor, the app says the data is poor — it does not show you an impressive-looking number instead.

What we measured

  • Angular velocity and direction of rotation, sampled 26×/second
  • Swing amplitude, decay rate, and precession angle
  • Magnetic heading, corrected against your calibration
  • Ambient temperature and light level
  • Elapsed time in each detected motion state
  • Your personal noise floor, measured at the zero point

What is interpretation

  • That clockwise reads as yes and counterclockwise as no
  • Where the boundary between maybe and a real answer sits
  • Every one of the six boards, without exception
  • The Vitality Scale, labelled interpretive on its own face
  • Any meaning drawn from a pattern across many sittings
  • The question you asked, and what you do with the answer
04 · The instrument

Roughly the weight of a few coins.

A 3D-printed housing on a cord, with a sensor package and a single button on its face. Twelvefold vortex geometry, cut into the shell — the same figure that runs through every screen in the app.

SensorsMotion · Rotation · Magnetic · Temp · Light
LinkBluetooth LE
Sample rate26 Hz
PowerCoin cell · wakes on movement
ControlsOne face button
CompanioniPhone · iPad · Mac
ExportEvery individual data point
Get the pendulum
05 · The six boards

Interpretive displays, driven live.

Each board takes the same motion data and renders it a different way. Every one of them is interpretation, and every one of them says so.