PM_K-1 hardware: core-board design-of-record + KiCad scaffold
Heirloom pro-audio modular brain/face design captured under hardware/:
- DESIGN.md: full spec (RP2350, ±15V studio rails via TPS65131+TPS7A LDOs,
PCM5102A click, THAT1240/1646 balanced click-injector with switchable
protected line/instrument input, fail-safe mute relay, series ground-lift,
USB-MIDI default + DNP hardware MIDI, sig/clip detect, ESD/EMI, chassis),
plus the two-interconnect pinouts (Pico-compatible digital ribbon + separate
analog/MIDI).
- BOM.csv: manufacturer part numbers + rough costs.
- kicad/: valid KiCad 7 project + documented schematic canvas. PCB
layout/routing remains the interactive step.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
87caa933ea