pcbflow

# PCB Flow project manifest — the AI's source of truth for this board.
# References DECISIONS and STATE, never volatile artifact paths.
name: example-usb-c-3v3
title: "USB-C to 3.3 V supply + status LED (worked example)"
status: reference-example        # not an active build; a teaching artifact

requirement:
  input: "5 V from USB-C"
  output: "3.3 V regulated, 300 mA"
  indicator: "power-on status LED"

decisions:
  board: "25 x 15 mm, 2-layer, 1 oz"
  regulator: "ME6211C33M5G-N (LDO, low dropout, 300 mA)"
  usb_cc: "5.1 kΩ pull-downs on CC1/CC2 (UFP, sink)"
  drc_profile: "JLCPCB-2L-1oz (11_routing/design_rules.json)"

phase_state:      # decision-based, not file-based
  "01_feasibility": PASS
  "02_bom": PASS
  "04_schematic": PASS      # netlist.enet verifies clean (0 issues)
  "05_schematic_audit": PASS
  "08_placement": not-started   # live in EasyEDA
  "11_routing": not-started     # live in KiCad