USB-C Environmental Sensor Design

flux

0:00

Work completed
  • Updated project description to capture system goals
  • Added System Architecture property with the mermaid diagram
  • Placed major ICs: U1, U2, U3, U4, U5, U6, U7
  • Placed active components: D1, J2, LED1, SW1
  • Fetched and set U4 “Max Output Current” to 2 A
Pending tasks
  • Evaluate U4 output current vs. 600 mA peak and add “LDO Regulator Required” property
  • Add supporting passives (decoupling capacitors, I²C pull-ups, inductors, external oscillator)
  • Define and route nets in the schematic (power rails, I²C bus, decoupling, ESD)
  • Review schematic completeness, component ratings, and compatibility
  • Prepare PCB layout (design rules for RF and high-current paths, component placement, ground plane stitching, ESD placement)
Success criteria status
  • Complete schematic: ❌ pending net connections and passives
  • PCB layout prepared: ❌ not started
  • Power transient support verified: ❌ pending
Next recommended step Evaluate U4’s headroom, set the “LDO Regulator Required” property, then proceed to add the supporting passive components to complete the power subsystem.
69 days

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Increasing Magenta Lightcycle 6f36 thumbnail
Low-Power USB-C (5 V) Environmental Sensor Node with 18650 Li-Ion Power-Path, Robust Protection (Reverse Polarity, OVP, UVLO, OCP to 3 A), Dual-Radio ESP32-S3 MCU, I²C VOC/Temp/Humidity/Pressure/Lux Sensors, and 2-/4-Pin JST-XH Expansion Pads for Battery and Sensors #USB-C #LiIon #ESP32 #I2C #PowerProtection #EnvironmentalSensor

Properties

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Pricing & Availability

Distributor

Qty 1

Arrow

$9.53–$12.00

Digi-Key

$21.08–$23.24

LCSC

$27.86–$27.91

Mouser

$16.68

TME

$5.40

Verical

$9.16–$16.48

Assets

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Controls

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