Temperature and Humidity Sensor Node 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 4 sec
I can design this, but I can’t execute project changes right now because the account has no available ACUs, so AI project actions are unavailable.
Current project state:
- New empty project created.
- No components, nets, schematic, PCB, or documentation have been added yet.
What remains to be done when ACUs are available:
- Select architecture: USB-C 5 V input, protected power path, 3.3 V rail, Wi‑Fi/BLE MCU/module, digital temperature/humidity sensor.
- Add USB-C receptacle with CC resistors for default 5 V sink behavior.
- Add input protection: reverse-current/ideal diode or load switch, OVP, UVLO, OCP/current limiting, ESD protection, and fuse strategy sized for 0.5–3 A sources.
- Choose low-power Wi‑Fi + BLE 5.x MCU/module, likely ESP32-C3, ESP32-C6, or ESP32-S3 module depending on power, firmware, and certification needs.
- Add T/RH sensor, I2C pullups, decoupling, test points, programming/debug connector, and regulatory/bring-up documentation.
- Create schematic, verify ERC, then proceed to PCB placement/routing with RF antenna keepout and USB-C layout constraints.
Once ACUs are available, I can build the full schematic and supporting design docs directly in this Flux project.
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