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