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.
I’ll keep this minimal: inspect the Pico 2 shield pins, select one low-power I2C humidity sensor, add only the required pull-ups/decoupling, wire it to the Pico 2 3V3/GND/I2C pins, then run checks and fix real issues.
Done — I added a minimal SHTC3 humidity/temperature sensor block: U2 SHTC3, C1 100 nF decoupling, and R1/R2 10 kΩ I2C pull-ups on Pico GPIO4/GPIO5, powered from the Pico 2 3V3 rail.
Focused schematic ERC is clean. The only remaining full-review errors are PCB airwires because the new parts have not been placed/routed yet; that’s expected until you approve moving into layout.