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- Buffer size (samples) in Settings > Acquisition was captured into the
settings dict but never read anywhere — SignalBuffer always used the
hardcoded MAX_BUFFER=20_000 constant (which happens to match the
dialog's default, hence it looking like the value "reverts"). Add
AcquisitionEngine.set_buffer_size(), wired in on startup and on Settings
apply; existing buffers are rebuilt at the new size in place, keeping
their most recent samples.
- New "Safety Switch" control type: an On/Off Switch that's disabled
outright until acquisition is running, with a lock icon shown while
disabled. AcquisitionEngine gains a run_state_changed(bool) signal
(emitted from start()/stop()); ControlWidget gains a
_check_safety_lock() hook (no-op by default, called uniformly by
ControlPanel on every widget) that SafetySwitch overrides. engine is
now threaded through to every ControlWidget for this. Persists via
ControlSpec.control_type alone — no schema change needed.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Arduino analog Signal ids used to be the pin name itself, so fixing a
wrong pin silently changed the id and orphaned any plot trace, control,
or filter pipeline pointing at it. Analog Signal ids are now positional
(ai0, ai1, ...) and decoupled from the underlying pin, matching how
digital I/O already worked.
More broadly, formalizes a Device -> Signal -> Channel -> Plot naming
model (SignalConfig for physical device channels, Channel for derived/
computed ones) and adds core/reference_registry.py to propagate any
Signal or Channel id rename through plot traces, controls, and filter
pipelines instead of leaving them dangling. Signal ids are now editable
in the Signals tab with the same propagation.
.labui profile schema bumped to v2.0 with a transparent migration for
old files, including remapping old pin-name Signal ids to the new
positional ones. Removed six confirmed-dead files (two legacy device
classes, four superseded top-level ui/ duplicates).
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Devices: auto-name from OS-reported port description (Device Manager /
udev string) instead of a generic label; default Serial #Channels 1;
consistent simulate-mode checkbox across backends; inline device rename.
Channels: calibration/filters move out of Signals into a Channel
"Operation" (adds Scale/Offset alongside the existing math kinds);
single-physical-source Channels get an embedded Filters block; new
Channels auto-name/auto-ID from their source and reject duplicate
names/IDs on apply; "Create Channel" button on each Signal row; renamed
"Sources" -> "Signals" in the Channels UI; Signals' READ/WRITE dir badge
(was silently-broken IN/OUT) now reflects the real writable flag.
Plot: default layout is one pane per Channel (not per device, not raw
Signals) titled by channel name; "+ Add Channel" is a checkbox dialog
instead of an inline dropdown; traces get up/down reorder; live unit
changes (e.g. a Mark-10 gauge switching lb/kgF/N/ozF) propagate to an
open pane's axis label without clobbering a manually-typed one.
Control Panel: hardware assignment now picks from the same writable-
Signals list instead of a separate device/channel combo with a
hardcoded Arduino pin list; stale visual indicator when a control's
target device/channel disconnects or disappears; documented the `vars`
bridge (Control Panel On Action Script <-> Channel scripts) in both
directions' help text and script templates.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Batches per-tick device readings into one signal emit instead of one
per channel, evaluates derived channels once per tick instead of once
per raw sample, and makes ChannelBuffer.window() cost scale with the
window size instead of total buffer history. Strip chart X-range now
scrolls on an independent ~30fps timer instead of only snapping when
new data lands, which was the main visible cause of the stutter.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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