I can design this, but I’m currently blocked because your account has no available ACUs, so AI execution features are unavailable and I can’t add components, wire the schematic, or create project files right now.
Current project state:
- New empty project created.
- No components or nets have been added yet.
- Requested design: USB-C powered low-power Wi-Fi/BLE temperature + humidity sensor node for consumer use, with 5 V input protection including reverse/OVP/UVLO/OCP and support for 0.5–3 A USB-C sources.
What remains to be done once ACUs are available:
- Select architecture and parts: Wi-Fi/BLE MCU/module, digital T/RH sensor, USB-C receptacle, protection/load-switch/eFuse, 3.3 V regulator.
- Create schematic with USB-C 5 V default CC resistors, input protection, power regulation, MCU, sensor, programming/debug, status LED, and test points.
- Add project specification, power budget, firmware pin map, regulatory notes, and bring-up plan.
- Verify ERC/design review, then proceed to PCB placement/routing if desired.