USB C Sensor Node
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 3 sec
I can’t start modifying the project right now because this account has no available ACUs, so AI design execution is unavailable.
Nothing has been added yet: the project is still empty with 0 components and 0 nets. The requested design remains to be done: a USB-C powered low-power Wi-Fi/BLE environmental sensor node with a digital temperature/humidity sensor, protected 5 V input path, regulator architecture, MCU/module selection, schematic wiring, verification, and later PCB layout.
When ACUs are available, the first implementation pass should:
- Select a certified Wi-Fi + BLE 5.x MCU/module, likely ESP32-C6/ESP32-S3 class depending on requirements.
- Add USB-C 5 V sink input with CC pull-downs for default 5 V source detection.
- Add input protection: reverse blocking, OVP, UVLO, OCP/current limiting sized for 0.5–3 A USB-C sources.
- Add 3.3 V regulation and power budget.
- Add digital T/RH sensor over I2C with pull-ups and decoupling.
- Create bring-up, firmware pin map, and consumer regulatory notes.
Pick main parts
Manual schematic checklist
Power budget
Find USB-C parts
Parts and planning
Waiting for input
