Minimal Pico 2 Humidity Sensor Design
Add the minimum required components needed for this Pi Pico 2 to function properly. Keep the design as simple and minimal as possible.
You may include a single humidity sensor as the primary peripheral, along with any essential supporting components such as power regulation, pull-up resistors, decoupling capacitors, or required connectors.
Thought for 4 sec
I’ll keep this minimal: inspect the Pico 2 shield symbol, choose one simple I2C humidity sensor with only required pull-ups/decoupling, wire it to Pico 2 power/GPIO, then run checks and fix any issues.
Worked for 3 mins 7 sec
The sensor circuit is wired. Review found only unused Pico 2 shield header pins, so I’m marking those intentionally unused while leaving the SHT31 circuit active on GPIO4/GPIO5.
Worked for 4 mins 1 sec
Done — I added the minimal SHT31-DIS humidity/temperature sensor circuit, with 10 kΩ I2C pull-ups, 100 nF local decoupling, Pico GPIO4/GPIO5 I2C wiring, unused pins marked intentionally unused, and manufacturable MPNs for the passives.
Schematic/ERC, manufacturing, and component checks are clean. Full project review still shows PCB airwires because the new parts have not been placed/routed yet; that’s expected before layout.
I also created Minimal Pico 2 Humidity Shield Notes with the wiring, BOM, power budget, and firmware bring-up notes. Ready to proceed to PCB placement when you are.
Proceed to placement
Keep sensor exposed
Minimize board size
Check layout first
Add mounting holes
