Wi-Fi/Bluetooth Sensor Node Design
Thought for 15 sec
I’ll build the USB-C powered Wi‑Fi/BLE temperature-humidity node from an empty project: choose datasheet-backed parts, document the power budget, add and wire the schematic, then run reviews and create firmware starter notes.
Worked for 29 sec
Project renamed and confirmed empty. I’m retrying the part search with a narrower library query, then I’ll lock the architecture and create the design notes.
Worked for 4 mins 51 sec
Architecture and power budget are captured in the project specification. I’m adding the schematic parts now: USB-C, eFuse protection, 3.3 V buck, ESP32-C3 module, SHT41 sensor, USB ESD, and support passives.
Worked for 7 mins 30 sec
Implemented the USB-C Wi‑Fi/BLE temperature-humidity sensor node schematic.
What’s done:
- Added and wired USB-C 5 V sink input, CC pulldowns, USB data ESD protection, TPS25210 eFuse protection, AP63203 3.3 V buck, ESP32-C3-WROOM-02, SHT41 I2C T/RH sensor, boot/reset buttons, decoupling, pull-ups, and status LED.
- Created the detailed Project Specification with architecture, datasheet notes, and power budget.
- Created Firmware Starter with PlatformIO setup and compilable ESP32-C3 Arduino code.
Validation note: schematic/ERC checks did not report unresolved electrical issues in the targeted ERC pass. The remaining review errors are expected pre-layout items: unrouted airwires, overlapping unplaced footprints, and generic passive MPNs before manufacturing BOM finalization.
Next checkpoint: the schematic is ready to move into PCB layout and placement. Want me to go ahead?
Set board layout
Run ERC/DRC
Finalize passives
Auto-place components
Add mounting features
