I can’t build the PCB in this session because no ACUs are currently available. The project remains blank: no schematic components, nets, board outline, placement, or routing have been created.
Remaining work:
- Derive requirements from the reference image and confirm relay contact voltage/current and board dimensions.
- Create the ESP32-C3, 9–24 V input, 5 V buck, 3.3 V rail, USB-C, four relay-driver channels, controls, indicators, and GPIO/UART header.
- Add mains-safe isolation/clearance rules, then place, route, and run ERC/DRC checks.
Restore or add ACUs, then rerun this request to continue.