USB Sensor Node
Worked for 4 mins 31 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 5 sec
I can’t run PCB analysis or auto-layout because the account currently has no available ACUs.
Current state:
- The 46-component schematic is complete and electrically checked.
- Recent commits indicate some PCB position rules have already been applied.
- Placement quality and routing completion still need inspection.
- Remaining work is to inspect the board, optimize placement if needed, route remaining airwires, then run DRC—especially checking the SiWG917 antenna keepout, SHT41 thermal isolation, USB-C protection path, and buck-converter hot loop.
Add ACUs, then rerun this request to apply the auto-layout automatically.
Inspect layout status
Review PCB issues
Check board setup
Export STEP model
Waiting for input
