LED Watch Simulator

runs watch_core.js (the firmware logic) on the real LED/pin map
LEFT LONG = mode selection from anywhere (then Left/Right move the highlight; wait to enter). Inside a mode both buttons belong to the mode. Both held 2 s = lock/unlock. On a dark watch the first press only wakes it. See "Controls right now" for the current mode.

Accelerometer (LIS2DW12)

drag toward the edge you lift
(W A S D, Q level)
x (→3 o'clk)0y (→12 o'clk)0z (out)1|a|1

Environment

Sound (piezo)

The core only says which frequency the piezo should play (out.tone); this page plays it as a square wave. Beeps follow the settings: key beeps (CFG 11, off by default), game sounds (CFG 12, on by default); the alarm always sounds. Click anywhere first (the browser blocks sound until you do).

Controls right now

Watch status

Display options

Matrix (row = sink, column = source) and scan plan

Manual (open as plain text)

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Event log