- gen_bom.py + BOM_board.csv: authoritative BOM generated from board.net (70 line items,
167 placements), grouped with MPNs; refs match the integrated netlist; DNP ICs flagged.
(Supersedes the early hand-written BOM.csv, which used per-block refs.)
- LAYOUT.md: routing rulebook for board.net -- 4-layer stackup, the grounding/star-point
strategy, switcher loop isolation, analog separation, USB diff pair, RP2350/crystal/flash,
thermal, DNP blocks, pre-fab confirm list, DRC checklist.
- pcb_layout_tutorial.md: beginner orientation -- use KiCad; the schematic/netlist=contract
vs layout=physical-realization paradigm; the import->place->route->pour->DRC->Gerber
workflow; vocabulary; how our files fit; learning resources; honest expectations.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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