Minimal Pico 2 Humidity Sensor Design

amirkat

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 keep this minimal: inspect the Pico 2 shield pins, choose a simple 3.3 V I2C humidity sensor, add only required pull-ups/decoupling, wire it to the Pico 2’s existing 3V3/GND/GPIO pins, then run checks and fix any real issues.

flux

The sensor block is wired. Review found the remaining issues are unused Pico 2 shield header pins, so I’m marking unused pins intentional and tying all ground header pins together to keep the minimal schematic clean.

flux

Done — I added the minimal SHTC3 humidity/temperature sensor circuit with only the required 100 nF decoupling capacitor and 10 kΩ I2C pull-ups, wired to Pico 2 GPIO4/GPIO5, 3V3, and GND.
ERC is clean with zero unresolved electrical violations. I also created Minimal Pico 2 Humidity Shield Design Notes with the pin map, datasheet rationale, and power budget.
Next step is PCB placement/layout when you’re ready.
Yes, place layout
Use larger passives
Add debug header
Check BOM cost
Add firmware notes
U1
U1 GPIO4 - U2 SDA
U1 GPIO5 - U2 SCL
GND
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Raspberry Pi Pico 2 Shield Template hSYu

Raspberry Pi Pico 2 Shield Template hSYu 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
#project-template #template #raspberry #pi #pico2 #newpico

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