Temperature and Humidity Sensor Design

flux

I’m blocked from making schematic/layout changes because execution credits are unavailable, so I could not add components, consult datasheets, wire the circuit, or run review checks.
Current project state:
  • No schematic changes made.
  • No components or nets added.
  • The project is still empty.
Recommended design plan when execution is available:
  • MCU/radio: ESP32-C6 or ESP32-S3 module with Wi-Fi 2.4 GHz 802.11 b/g/n + BLE 5.x.
  • Sensor: low-power digital I²C temperature/humidity sensor such as Sensirion SHT4x/SHTC3-class device.
  • Input: USB-C receptacle configured for 5 V default sink with CC pull-downs.
  • Protection/power path:
    • USB-C VBUS ESD/TVS protection.
    • Reverse-current / ideal-diode or load-switch protection.
    • OVP/UVLO/OCP-capable USB power-path/load switch sized for 0.5–3 A source capability.
    • 5 V to 3.3 V regulator sized from a proper power budget.
  • Support circuitry:
    • Decoupling on every IC power pin.
    • I²C pull-ups.
    • ESP boot/reset circuitry per datasheet.
    • RF antenna keepout if using a module antenna.
  • Validation:
    • Datasheet-grounded schematic wiring.
    • ERC review until clean.
    • Power-budget documentation.
    • Then proceed to PCB layout only after schematic confirmation.
When credits are available, the next step is to build and verify the complete schematic first.
Choose manual parts
Schematic checklist
Current budget
Protection IC options
Draft requirements note
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Minimum Maroon Memory Implanter

Minimum Maroon Memory Implanter thumbnail
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