Minimal Pico 2 Sensor Design

I’ll keep this minimal: inspect the Pico 2 shield pins, select one simple I2C humidity sensor plus only required pull-ups/decoupling/power connections, wire it, then run checks and fix any issues.
The sensor circuit is wired. Review found only unused Pico header pins floating plus VBUS not used on this minimal shield, so I’m marking those intentionally unconnected and re-checking.
VBUS is modeled as a required power input, so I’m adding one simple 2-pin 5V/GND power header rather than adding USB-C circuitry. This keeps the shield minimal and gives the Pico a defined power source in the schematic.
Done — I added a minimal Pico 2 humidity-sensor shield circuit: SHTC3 sensor, 10kΩ I2C pull-ups, 100nF local decoupling, GND/3V3/I2C wiring, and a simple 2-pin 5V/GND VBUS input header.
Validation passed: electrical review now reports no ERROR/WARNING/UNCERTAIN ERC checks. I also saved the design notes and power budget in Minimal Pico 2 Humidity Sensor Shield Design Notes.
Move to layout
Place components
Check BOM
Add firmware notes
Use 4.7k pullups
U1
U1 GPIO5 - U2 SCL
U1 GPIO4 - U2 SDA
GND
U1 AGND - U2 VSS


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Raspberry Pi Pico 2 Shield Template 9stM

Raspberry Pi Pico 2 Shield Template 9stM thumbnail
This is the project template for the Raspberry Pi Pico 2, the latest addition and update to Pi Pico line up.
Raspberry pi pico 2 is equipped with the RP2350, a cutting-edge, high-performance microcontroller designed with enhanced security and versatility in mind. Every element of its design has been upgraded, from the advanced CPU cores to the innovative PIO (Programmable I/O) interfacing subsystem.
The Raspberry Pi Foundation has integrated a robust security architecture centered around Arm TrustZone for Cortex-M, ensuring data protection and integrity. Additionally, new low-power states and expanded package options broaden the range of applications, making the Pico 2 an ideal choice for diverse, power-sensitive projects.
To learn more about what's the key differences between the original Pi Pico and the new Pi Pico 2, read our blog https://www.flux.ai/p/blog/whats-new-in-the-raspberry-pi-pico-2-a-showdown-with-the-original-raspberry-pi-pico

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$1.71

Digi-Key

$1.16

TME

$6.10

Verical

$1.64–$1.89

Controls