USB-C Environmental Sensor Node

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Using Knowledge Base Tool.

Planning IC Integration.

Outlining Regulator and Connection Steps.

Executing the Planning Step.

I’ll build your low-power USB‑C 5 V Wi‑Fi/BLE environmental T/RH sensor node with full input protection.
Planned steps:
  1. Core parts: add a dual‑radio Wi‑Fi + BLE 5.x SoC/module, a digital I2C T/RH sensor, and a USB‑C receptacle configured for 5 V only with CC pull‑downs.
  2. Power path: USB‑C 5 V -> ESD + eFuse/ideal‑diode stage providing reverse, OVP, UVLO, and OCP (sized for 0.5–3 A sources) -> 3.3 V low‑Iq regulator with ~25% current headroom; include input/output bulk, high‑freq decoupling, and an LC filter for RF quieting.
  3. Passives/protection: bidirectional low‑cap TVS on USB lines (<1 pF per line), I2C pull‑ups, reset/boot, programming header, and a status LED with series resistor.
  4. Connections: wire I2C sensor to the SoC, enable/INT nets, power rails, and ground; label nets and annotate values.
  5. Reviews/layout prep: ERC/DRC pass, footprint checks, RF keep‑outs and antenna edge placement, then ready for placement/routing.
To start, click “Start” on the plan bar.
Quick clarifications:
  • MCU family preference (e.g., ESP32 class module vs other vendor)?
  • Sensor preference or requirements (accuracy range, e.g., ±1–2% RH)?
  • Do you need USB data or only power from USB‑C?
Clarify USB-C usage
Choose MCU family
Define sensor performance
Ask about regulator choice
Add programming interface
119 days
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  • Ground
    Ground
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  • Terminal
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