Expansion header adapter for Raspberry Pi Pico, Waveshare DFR-20372 (board breakout for GPIO pins)

The Waveshare expansion header adapter for Raspberry Pi Pico (board breakout for GPIO pins) converts the Pico's dual edge connector signals into a standard 0.1" pitch header layout, making individual GPIO, power and common lines easier to access for breadboarding and prototyping. The compact PCB preserves the Pico form factor while exposing pins in a row suitable for jumper wires, sensor connectors and development modules. This adapter is designed to streamline wiring and reduce handling of the Pico's edge connector during iterative testing and circuit assembly.

Advantages

This expansion header adapter provides a straightforward, space-efficient way to access Raspberry Pi Pico pins without soldering to the edge connector. The standard 0.1" header layout improves compatibility with female jumper wires, breadboards and common prototyping accessories. The breakout board preserves power rails and key signal lines for clear identification and reliable connections, supporting faster assembly of experimental circuits and sensor integrations.

Suitable for

• Breadboarding and rapid prototyping with Raspberry Pi Pico
• Connecting sensors and modules using standard jumper wires
• Educational projects and hardware development labs
• Small-scale testing and debugging of GPIO-based circuits

Key specifications

• Form factor: adapter board designed to match Raspberry Pi Pico edge connector
• Pin format: standard 0.1" (2.54 mm) pitch header
• Exposed lines: GPIO signals, power rails and common signal pins routed to header
• Mounting: compact PCB intended for direct mating with Pico edge connector
• Compatibility: made for Raspberry Pi Pico modules and compatible microcontroller boards with the same edge connector

How to use

Align the adapter board with the Raspberry Pi Pico so that the Pico's edge connector seats properly in the adapter footprint, then secure the connection according to the adapter's mechanical design (press-fit or use recommended header/sockets if provided). Once connected, attach jumper wires or female connectors to the 0.1" headers to access GPIO lines, power (3.3V, GND) and other routed signals. Use standard wiring practices to avoid short circuits and ensure stable power delivery during development and testing.

Usage recommendations

For reliable results, inspect the adapter and Pico edge connector for debris before mating. Use shrouded or keyed connectors where possible to prevent accidental misalignment. When working with breadboards and external modules, verify voltage levels and pin assignments to avoid damage to sensors or the Pico. If prolonged testing or higher current loads are expected, consider using headers and wire gauges rated for the required current and add decoupling capacitors on the power rail.