USB-C Sensor Node
Worked for 4 mins 50 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:
- [Project Specification](https://www.flux.ai/:handle/:documentSlug/files/project-specification-usb-c-wifi-ble-th-sensor~il)
- [Firmware Starter](https://www.flux.ai/:handle/:documentSlug/files/firmware-starter-siwg917-usb-c-wifible-trh-sensor~11)
- [Board Bring-Up Plan](https://www.flux.ai/:handle/:documentSlug/files/board-bring-up-plan-usb-c-wifi-ble-th-sensor~7w)
- [Technical Construction File](https://www.flux.ai/:handle/:documentSlug/files/technical-construction-file-usb-c-wifi-ble-th-sensor~fv)
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:
1. Set board size/stackup and move into PCB placement.
2. Place U1 at the board edge with antenna keepout and U4 away from heat sources.
3. Route power, buck, I2C, SWD/UART, and USB-C protection paths.
4. Assign final passive MPNs and run full DRC/manufacturing checks.
Thought for 4 sec
No PCB placement, routing, or other project edits were completed in this turn. The project remains at its prior state: schematic and documentation exist, while board sizing, placement, antenna keepout, routing, and final DRC/manufacturing checks remain outstanding.
Execution stopped because your ACUs ran out.
Thought for 13 sec
I can’t continue PCB placement or routing in Chat mode because those require project-editing tools in Agent mode. The remaining work is board outline/stackup, verified component placement with SiWG917 antenna keepout and SHT41 thermal isolation, routing, and DRC cleanup; execution is also currently blocked because your ACUs have run out.
