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Adafruit PiCowbell Proto for Pico - Reset Button & STEMMA QT

Adafruit PiCowbell Proto for Pico - Reset Button & STEMMA QT

99 units available with a short lead time.

Express post shipping available (product has a short lead time)

The Adafruit PiCowbell Proto is a prototyping add-on board for the Raspberry Pi Pico and Pico W. It matches the Pico's footprint and sockets underneath, giving you a reset button, a STEMMA QT / Qwiic I2C connector, and a grid of prototyping pads — everything you need to quickly wire up custom circuits alongside your Pico.

The centre of the board features 13 rows of 4-hole connected strips that work like a mini breadboard, plus dedicated power rails for 3.3V and ground. Every Pico pad has a duplicate hole next to it for easy solder-jumpering to your prototype circuit.

Key Features

  • Reset Button – Right-angle button that sticks out the end for easy access
  • STEMMA QT / Qwiic Connector – Right-angle JST SH for I2C devices on GPIO 4 (SDA) and GPIO 5 (SCL), with 4 extra breakout holes for re-assignment or additional I2C connections
  • 13 Rows of 4-Hole Connected Strips – Mini breadboard-style prototyping area in the centre; traces can be cut between holes if needed
  • Dedicated Power Rails – One long 3.3V strip and a ground strip near the reset button
  • Duplicate Hole Pads – Every Pico pin has a matching solder-jumper hole; ground pads marked with white silkscreen
  • Gold-Plated Pads – For easy, reliable soldering
  • Pico-Sized Form Factor – Sits directly underneath the Pico for a compact stack

Header Options

This PiCowbell does not include headers to keep things flexible. Several configurations are available:

  • Stacking Headers – Plug into a breadboard or other accessories with sockets
  • Socket Headers – Plug the Pico directly in for a solid, compact connection
  • Short Socket Headers – Ultra-slim pluggable design; pair with Short Plug Headers on the Pico for a skinny sandwich
  • Direct Soldering – Most compact and inexpensive, but permanent

I2C Configuration

  • Arduino (Philhower core) – Wire peripheral is pre-configured for GPIO 4 and 5
  • CircuitPython / MicroPython – Set SDA=4 and SCL=5 in your code
Tip: No I2C pull-up resistors are included on the board, but most STEMMA QT / Qwiic breakouts have them built in.

Ideal For

  • Custom circuit prototyping with Raspberry Pi Pico or Pico W
  • Adding I2C sensors and breakouts via STEMMA QT
  • Quick breadboard-free builds and one-off projects
  • Compact wearable or embedded prototypes

Package Contents

  • 1× Adafruit PiCowbell Proto PCB (assembled with reset button and STEMMA QT connector)
Note: Raspberry Pi Pico and headers are sold separately. Mount the Pico on top if you want the BOOTSEL button and LED accessible.

The Adafruit PiCowbell Proto for Pico - Reset Button & STEMMA QT appears in the following collections:

SKU AF-5200
by Adafruit