USB-C Temp/Humidity Sensor Design
Make me a temperature and humidity sensor node with Wifi and Bluetooth, powered by USB-C (5V) for consumer use.
It should be a low-power environmental node with a digital T/RH sensor, ultra-low-power MCU with Wi-Fi + Bluetooth (dual-radio) — 2.4 GHz 802.11 b/g/n plus BLE 5.x powered by USB-C (5 V) — USB-C receptacle 5 V default; include reverse/OVP/UVLO/OCP protection and plan for 0.5–3 A sources.
Thought for 15 sec
I’ll build the schematic for a USB‑C powered Wi‑Fi/BLE environmental sensor node: select the MCU/sensor/protection/regulator parts, calculate the power path sizing, wire the circuit with required passives, add project/firmware notes, then run review checks and fix issues.
Worked for 2 mins 27 sec
I selected an ESP32-C3 module, SHT40 sensor, USB-C receptacle, TPS2595-class eFuse, 3.3 V buck regulator, USB ESD, buttons, LED, and generic support passives. I’m checking the active-part datasheets now so the schematic values and wiring follow the recommended circuits.
Worked for 8 mins 9 sec
Done — I created the schematic for the USB‑C powered Wi‑Fi/BLE temperature/humidity sensor node, including protected 5 V input, 3.3 V buck regulation, ESP32‑C3 module, SHT40 I2C sensor, USB data ESD, boot/reset buttons, status LED, and required decoupling/pull resistors.
I also added project files for the power/design notes, firmware starter, and review results. The schematic/ERC checks are clean; remaining full-review errors are expected because the board is not placed/routed yet and generic passives still need production MPNs before manufacturing.
Next checkpoint: I’m ready to move from schematic to layout — size the board, place components with the ESP32 antenna at the edge, then route after placement approval. Want me to proceed with layout?
Set board size
Auto-place components
Add passive MPNs
Check blocking issues
