Power module Waveshare Pico-UPS-A for Raspberry Pi Pico (Waveshare WSR-19359)

The Waveshare Pico-UPS-A for Raspberry Pi Pico is a compact power module that adds uninterrupted power supply capability to Pico-based projects. Designed to sit alongside the Raspberry Pi Pico, it enables safe shutdown procedures and provides short-term backup power during mains interruptions. The module is intended for embedded development, prototyping and portable applications where controlled power management and prevention of data loss are important.

Advantages

The module offers automatic switchover to battery backup when input power is lost and a controlled power path to avoid sudden shutdowns. Its small footprint and direct compatibility with the Raspberry Pi Pico reduce wiring and assembly complexity. The design supports safe shutdown signaling and preserves runtime state for a brief period, helping protect file systems and volatile data during unexpected power events.

Suitable for

• Embedded development and learning projects with Raspberry Pi Pico
• Prototyping electronic devices that require brief backup power
• Portable or field-deployed Pico applications where power interruptions can occur
• Projects that need orderly shutdown to protect data and peripherals

Key specifications

• Compatibility: Raspberry Pi Pico form-factor and GPIO signaling
• Function: Uninterruptible power supply (UPS) functionality with automatic backup
• Backup capability: Short-term backup power to allow safe shutdowns (typical duration depends on load and battery capacity)
• Interfaces: Power input and battery connection designed for compact Pico-based setups
• Physical characteristics: Small, board-mounted module suitable for integration with Pico projects

How to use

Install the Pico-UPS-A by aligning and connecting it to the Raspberry Pi Pico according to the module's mechanical and electrical layout. Connect an appropriate power source and the recommended battery following the manufacturer's connection guidance. Implement or enable the safe shutdown routine on the Pico firmware so the board can detect power loss and perform orderly shutdown or data-saving operations while the module provides backup power. Monitor power and battery status in software if the application requires automated responses to changing power conditions.

Usage recommendations

Use the module with compatible batteries and follow the manufacturer’s guidelines for charging and battery safety. Test shutdown logic in your firmware under controlled conditions to confirm that backup time is sufficient for your application, and avoid exceeding the module’s intended current draw to ensure reliable operation.