Temperature and Humidity Sensor Design
Thought for 2 sec
I’m blocked because the workspace has no execution credits available, so I can’t add parts, consult datasheets, wire the schematic, or run review checks.
Current project state:
- Empty project: 0 components, 0 nets.
- No schematic or layout work has been performed yet.
- Project still has the placeholder name/description.
What remains to be done when credits are available:
- Rename and document the project as a USB-C powered Wi-Fi/BLE temperature-humidity sensor node.
- Select a dual-radio low-power MCU/module, likely an ESP32-C6 / ESP32-C3 / ESP32-S3-class module depending on required BLE/Wi-Fi tradeoffs.
- Select a digital T/RH sensor with I²C interface and low standby current.
- Design USB-C 5 V input with:
- CC pull-downs for default USB-C sink behavior.
- Reverse-current / reverse-polarity protection.
- OVP, UVLO, and OCP protection.
- Current planning for 0.5 A to 3 A capable USB-C sources.
- Add regulated rails, likely 3.3 V for MCU and sensor, with datasheet-required input/output capacitors.
- Add decoupling, pull-ups, boot straps, reset/enable circuitry, programming/debug access, and antenna keepout.
- Run schematic review/ERC and fix all violations.
- After schematic approval, proceed to PCB placement, RF-aware layout, routing, and final DRC.
No design changes were made in the project yet.
Draft architecture
Choose ESP32-C6/SHT41
Define power tree
Create requirements note
Compare MCU options
To get started, talk to Flux or create a New Document.
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