I’m blocked from executing design actions because the project has no remaining credits, so I could not add components, consult datasheets, wire the schematic, or run review checks.
Current project state:
- Project is still empty: 0 components, 0 nets.
- No schematic or layout changes were made.
- No datasheet-grounded part selection has been performed yet.
Recommended next design plan once credits are available:
- Rename/document the project as a USB-C Wi-Fi/BLE temperature-humidity sensor node.
- Select an ultra-low-power Wi-Fi + BLE 5.x MCU/module, likely an ESP32-C6/C3-class module depending on exact power/performance goals.
- Add a digital temperature/RH sensor, likely I²C.
- Design USB-C 5 V input with:
- USB-C receptacle with CC pull-downs for default 5 V sink operation.
- Reverse-current/reverse-polarity protection.
- OVP, UVLO, and OCP/load switch protection sized for 0.5–3 A sources.
- 5 V to 3.3 V regulator sized from a real power budget.
- Add all required decoupling, pull-ups, boot/config resistors, programming/debug connector, and RF/antenna keepout.
- Run schematic ERC/review and fix all violations before moving to layout.
Once credits are restored, I can build the schematic first, verify it against datasheets, and pause for your approval before layout.