Stillpoint rev A

First hardware revision of Stillpoint, an open-hardware 60 GHz radar ceiling sensor for presence and fall detection (no camera, no microphone, Matter over Thread).

Board

• Ø60 mm round, 4 layers (JLC04161H-7628), black mask, ENIG
• Infineon BGT60TR13C radar (BGA, bottom side, facing the room) + Silicon Labs MGM260P (Matter/Thread)
• Per-domain filtered radar supplies (TLV757P + TPS7A20), SN74AVC4T245 level translators, CP2102N USB console, USB-C power, Tag-Connect SWD, RGB status LED
• Fully routed: 0 DRC violations, 0 unconnected, 0 ERC errors, 0 schematic/PCB differences; kicadverify gate PASS

Assets

File	Use
stillpoint_revA_gerber.zip	Gerber X2 + Excellon drill, upload to JLCPCB
BOM_JLCPCB.csv, CPL_JLCPCB.csv	JLCPCB assembly (LCSC part numbers)
stillpoint.step	3D board for enclosure work
stillpoint_schematic.pdf	Schematic

Sources: hardware/ (KiCad 10), reproducible layout pipeline in tools/pcb_build/, design notes in docs/hardware.md.

Status: design complete and verified on screen; not yet fabricated. Not a medical device.

Licensed under CERN-OHL-S-2.0.