Confirmed the approved target as the YDS-PAA40-OV5640-1B with FH12-24S-0.5SH connector and verified its 24-pin power/signal mapping. No schematic or PCB changes were made this session because ACUs became unavailable.

I’ll complete the remaining camera hardware, verify the full schematic, then size, place, route, and DRC-check the four-layer PCB. I’ll keep only genuinely unverifiable manufacturing details as explicit blockers.

The full-board build ran to the execution time limit, so I’m checking what was actually applied before continuing with only the unfinished items.

The camera block was added and all 110 physical components were placed on a 140 × 100 mm draft board. The timed-out run stopped before the required four-layer conversion and routing, so I’m clearing schematic checks first, then I’ll finish layout and routing.

The approved OV5640 camera interface is now added with 2.8 V/1.5 V rails and level shifting; the 503-item schematic is ERC-clean, and all 110 physical components are draft-placed on a 140 × 100 mm board. The PCB remains unfinished: it is still two-layer, congested near the camera/ESP32 area, has approximately 294 airwires, and still needs four-layer conversion, mounting holes, placement refinement, routing, and final DRC cleanup. Execution stopped because no ACUs are currently available.