XIAO PowerBread

The Seeed XIAO PowerBread is an open-source breadboard power supply and monitoring module designed specifically for prototyping with Seeed Studio XIAO development boards (except SAMD21/RA4M1 models). It offers regulated 3.3V and 5V outputs, supports up to 1.5A on the 3.3V rail, and integrates real-time voltage, current, and power monitoring via an onboard LCD. Powered via USB-C through the connected XIAO board (not included), the PowerBread uses an INA3221 sensor for dual-channel power monitoring. It also features multiple user interface modes, including live data, charts, and statistics, all visible on the built-in screen. The compact design fits neatly onto a standard breadboard with minimal space usage. XIAO board not included.

Features

* Real-time voltage, current, and power monitoring

* Regulated 3.3V (up to 1.5A) and 5V output rails

* Integrated colour LCD for live data display

* Supports UI switching between data, chart, and statistics modes

* Dual-channel current/voltage sensing via INA3221 sensor

* Powered via USB-C from XIAO board (not included)

* Compatible with most Seeed Studio XIAO boards (except SAMD21/RA4M1)

* Open-source design with editable firmware

* Plug-and-play with standard breadboards

Specifications

* Output Voltage: 3.3V (max 1.5A), 5V

* Input: USB-C (via XIAO board, not included)

* Sensors: INA3221 for dual-channel monitoring

* Display: Colour LCD with multiple UI modes

* Interfaces: Breadboard pins, USB-C

* Compatibility: Most Seeed Studio XIAO boards (except SAMD21/RA4M1)

* Form Factor: Breadboard-friendly

* Product number: Seeed 114993507

Resources

* XIAO PowerBread Product documentation

* GitHub Repository – nicho810/XIAO-PowerBread

Package Contents

* 1 x XIAO PowerBread board

XIAO dev board not included