USB-C Sensor Node
Worked for 4 mins 32 sec
Implemented the schematic for the USB-C powered Wi‑Fi/BLE temperature/humidity node. It uses a SiWG917 Wi‑Fi/BLE 5.4 module, SHT41 T/RH sensor, USB-C sink input, TPS25940 true reverse-blocking eFuse with OVP/UVLO/OCP/soft-start, MP28301 3.3 V buck regulator, ESD protection, reset/ISP/SWD debug, I2C pull-ups, and status LED.
Created project files:
Open items:
- PCB layout/routing is not done yet, so airwire DRC errors are expected.
- Generic passives still need final manufacturer MPNs before manufacturing export.
- Layout must enforce the SiWG917 antenna keepout and thermal isolation around the SHT41.
Suggested next steps:
- Set board size/stackup and move into PCB placement.
- Place U1 at the board edge with antenna keepout and U4 away from heat sources.
- Route power, buck, I2C, SWD/UART, and USB-C protection paths.
- Assign final passive MPNs and run full DRC/manufacturing checks.
Start Auto-Layout
Thought for 2 sec
I can’t analyze or modify the PCB in this session because no ACUs are currently available, so AI layout features cannot run.
Current state:
- The schematic is complete.
- PCB placement and routing remain unfinished.
- The board still needs outline/stackup verification, component placement, antenna and sensor thermal keepouts, routing, and final DRC.
Once ACUs are available, rerun this request to automatically inspect the board, place components where needed, route remaining airwires, and verify the result.
Check layout requirements
Review unfinished layout
Export design files
