Temperature and Humidity Sensor Node Design

camkellyellph

camkellyellph

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.

flux

I can’t continue executing design work right now because there are no available ACUs for AI actions on this account.
Current project state:
  • A new empty Flux project exists: Profound Moccasin Pip boy
  • No schematic components, nets, PCB layout, or project documentation have been added yet.
What remains to be done once ACUs are available:
  • Select an ultra-low-power Wi-Fi + BLE 5.x MCU/module, likely an ESP32-C6 / ESP32-S3-class module depending on power and certification needs.
  • Select a digital temperature/humidity sensor, e.g. Sensirion SHT4x/SHTC3-class or equivalent.
  • Design USB-C 5 V input with CC resistors, reverse protection, OVP, UVLO, OCP/current limiting, and support for 0.5–3 A sources.
  • Add regulators/power tree, decoupling, programming/debug interface, antenna keepout, and consumer-use protection.
  • Create schematic, verify ERC, then proceed to PCB placement/routing and manufacturing checks.
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