USB-C Sensor Node
Worked for 4 mins 28 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.
Set up the PCB layout, place the components, route the board, and assign final passive MPNs.
Thought for 5 sec
I can’t continue execution because the account currently has no available ACUs.
Completed already:
- Full 46-component schematic with SiWG917 Wi‑Fi/BLE, SHT41 sensor, protected USB-C input, TPS25940 eFuse, 3.3 V buck, ESD, debug, reset, and indicators.
- Schematic electrical checks passed.
- Firmware, bring-up, specification, and regulatory files were created.
Remaining:
- Define board dimensions, stackup, and layout rules.
- Assign passive MPNs and verify sourcing.
- Place components with the SiWG917 antenna keepout and SHT41 thermal isolation.
- Route power, switching, signal, and ground paths.
- Run DRC, clear airwires, and prepare manufacturing outputs.
Execution can resume once ACUs are available.
Finalize passive BOM
Set up and place PCB
Ask layout constraints
Create manufacturing BOM
Waiting for input
