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Green rectangular development board with castellated edges and a built-in USB-A plug, 29 GPIO pins visible along the sides

WaveShare

WaveShare RP2040-One development board 4MB flash 133 MHz USB-A 29 GPIO

SKU CH-P4D5-5WCW9

A Pico-like microcontroller board with a dual-core Arm Cortex-M0+ processor at 133 MHz, 4 MB flash, built-in USB-A plug and 29 GPIO pins for embedded development

  • Dual-core Arm Cortex-M0+ at 133 MHz for responsive real-time control
  • 4 MB flash stores larger firmware and data logs
  • Onboard USB-A plug enables direct host connection without cables
  • 29 multi-function GPIO pins support flexible peripheral integration
  • Castellated module design allows surface-mount assembly into custom PCBs

RP2040 development board with onboard USB-A

The WaveShare RP2040-One is a Pico-like microcontroller board built around the dual-core Arm Cortex M0+ processor running up to 133 MHz. It provides 4 MB of flash memory and 29 multi-function GPIO pins for flexible embedded projects. The board suits makers and engineers who want a compact, castellated module for surface-mount integration or rapid prototyping.

Check power and pin requirements before ordering

The board draws power directly from its onboard USB-A plug, so no separate cable is needed. Verify that your host can supply enough current for the application and that the 29 GPIO pins match the signal count and voltage levels your sensors or actuators require. The castellated edges are intended for SMD soldering; ensure your PCB footprint matches the pad layout.

Thermals noise and power in normal use

The RP2040 runs cool at 133 MHz, so passive heat dissipation is sufficient for typical workloads. No fan or active cooling is present, making the board completely silent during operation. Current draw stays low in standard microcontroller tasks, allowing reliable operation from a standard USB port without extra power circuitry.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $33.99
Cheaper than about 65% of the 1,420 comparable items (median $44.99).

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Specifications

Processor
ProcessorOther

Questions about this item

What comes in the box and does the onboard USB-A plug mean I need no extra cable?

The RP2040-One board arrives with its built-in USB-A connector so it plugs straight into a host port without any separate cable.

Should I choose the 4 MB flash version or is there another capacity?

Only the 4 MB flash variant is offered, giving you that full amount for program storage.

What does the 133 MHz dual-core Cortex-M0+ speed mean when the board is running my code?

Both cores can execute up to 133 MHz, providing deterministic real-time performance across the 29 configurable GPIO pins.

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