adom-schematic-viewer

Interactive schematic viewer. The drawing is your EDA's own export — real symbols, real fonts, real wire routing — with an invisible interaction layer over it that knows which strokes belong to which component. Hover a symbol and it haloes the way it does when you select it in KiCad, and tells you what the part costs and whether it is in stock.

The untouched sheet — this is service-kicad's own export, not a redraw:

Why it works this way

Same architecture as its sibling adom-layout-viewer: authenticity from the EDA's render, interactivity from parsed geometry.

• Visual base — the whole sheet as SVG from the shared service-kicad container (POST /kicad/sch/export/svg).
• Interaction overlay — the .kicad_sch parsed in Rust into per-component regions (symbol body plus a box per visible property text), used both for invisible hotspots and to tag each drawing element with data-cref so the highlight can act on the symbol's real lines.

What you get

• KiCad-style selection — hovering haloes that symbol's own strokes, including its reference and value text. Its colours don't change and the rest of the sheet is left completely alone.
• Hover card — reference, value, description, footprint, LCSC part, plus live MPN, stock, price, tier, popularity, a JLCPCB link, a wiki page link and the datasheet. The card follows the cursor and flips at the viewport edges.
• Click to pin — the card stays where it is and becomes clickable, so you can actually follow those links. On small or embedded screens the hover card is abridged to reference · MPN · stock; pinning always expands it.
• Component list — every part on the sheet, hover-linked to the drawing.
• Embeddable — embed emits one self-contained interactive HTML file, so any app can use it as a live schematic view. (adom-project-manager does.)

Install

adompkg install adom-schematic-viewer

Use

# one self-contained interactive HTML (what you embed in another app)
adom-schematic-viewer embed --file sheet.kicad_sch --out sheet.html

# a composed interactive SVG (+ sheet.meta.json with --meta)
adom-schematic-viewer render --file sheet.kicad_sch --out sheet.svg --meta

# the live app
adom-schematic-viewer serve --file sheet.kicad_sch --port 8793

# one part's stock/price/MPN/wiki as JSON — lets a HOST app serve /enrich
# on behalf of an embedded view, which has no server of its own
adom-schematic-viewer enrich --mpn 100nF --lcsc C1525

Embedding in your own app

<iframe src="/board-view/my-board/sch" style="border:0;width:100%;height:100%"></iframe>

The embed's fetch("enrich") is relative, so it resolves against whoever serves the page. Point that route at adom-schematic-viewer enrich and the embedded card gets live stock and price; answer nothing and it degrades to identity only.

Enrichment

• adom-jlcpcb search <Cnnn> — stock, unit price, Basic/Preferred/Extended tier, popularity, manufacturer, the real MPN and a JLCPCB link
• adom-wiki discover search --query <mpn> --json — wiki page, and vouch count as popularity when JLCPCB has none. Matched conservatively (close name match only) so passives don't pick up unrelated pages.

Notes

• Requires network access to service-kicad; override with KICAD_SERVICE_API. Override the JLCPCB endpoint with JLCPCB_API.
• KiCad today; Altium and Fusion exports are the next step.

See also: adom-layout-viewer — the same idea for .kicad_pcb, with net and trace highlighting.