Minimal Pi Pico 2 Humidity Sensor Design

A

amirkat

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.

flux

I’ll build a minimal Pico 2 shield schematic: inspect the template pins, choose a simple humidity sensor, add only required power/I2C support parts, wire everything, then run checks and fix any schematic issues.

flux

I selected the Sensirion SHTC3 because it runs directly from the Pico 2’s 3.3 V rail and only needs I2C pull-ups plus one 100 nF bypass capacitor, so no extra regulator is required.

flux

Done — I added the minimal SHTC3 humidity/temperature sensor circuit with only R1/R2 10kΩ I2C pull-ups and C1 100nF decoupling, wired to Pico 2 GPIO4/GPIO5 and 3V3/GND. ERC now returns no unresolved categories.
I also created:
Next step is PCB layout placement; I’ll wait for your confirmation before moving into layout.
Start PCB layout
Place sensor near edge
Keep shield compact
Check BOM cost
Add test points
Sign up to send

Files

Schematic

Layout

3D View

U1
U1 GPIO4 - U2 SDA
U1 3V3 - U2 VDD
U1 GPIO5 - U2 SCL
VBUS
U1 GND - U2 VSS
GND

Raspberry Pi Pico 2 Shield Template x89c