USB-C Sensor Node

kikeelect

kikeelect

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

No design changes were made; the project remains empty because no ACUs are currently available for AI execution.
Remaining work:
  • Select the Wi‑Fi/BLE MCU and digital temperature/RH sensor.
  • Design USB‑C 5 V input with CC resistors, reverse-current protection, OVP, UVLO, OCP, and 0.5–3 A source compatibility.
  • Add regulation, decoupling, programming/debug, reset/boot, and RF keepout circuitry.
  • Capture and verify the schematic, then complete PCB placement, routing, antenna clearance, and manufacturing checks.
Develop core architecture
Compare MCU and sensor
Design protected power path
Calculate power budget
Build preliminary BOM
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