Two velxio-native passive parts, rendered as web components with
programmatic SVG + precomputed pinInfo (velxio-breadboard 830 holes,
velxio-breadboard-mini 170). Pin names follow the Wokwi convention
(holes `18t.d` / `17b.i`, rails `tp/tn/bp/bn.N`) and the metadata ids
are `breadboard` / `breadboard-mini`, so wokwi diagram.json zips
import/export with no aliasing.
Internal connectivity (5-hole column strips, full-length power rails)
is centralized in utils/breadboardNets.ts and wired into every net
consumer:
- NetlistBuilder: unionBreadboardGroups joins wired holes per group at
the union-find level in buildNetlist, buildWireNetMap and
buildBoardPinNetMap — SPICE, the circuit verifier and the voltage
overlay all see one net per strip/rail with no extra cards.
- DynamicComponent.traceDetailed: the digital trace hops through every
other wired hole of the entered group, so parts wired through a
breadboard still resolve their board pin (2-terminal
PASSIVE_PIN_PAIRS could not express N-hole groups).
Verified end-to-end in the app: Uno pin 8 -> full-board column ->
resistor -> mini-board column -> LED -> ground rail -> GND lights the
LED, and the HUD shows the 3 collapsed SPICE nets. 8 new unit tests
(breadboard-nets.test.ts); netlist-builder + circuit-verifier suites
stay green.
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