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Small green rectangular circuit board with castellated edges and USB-C port, no pin headers installed

WaveShare

WaveShare RP2040-Zero Development Board No Pinheader

SKU CH-B2ZG-SCJBH

A compact RP2040 development board with dual-core Arm Cortex-M0+ at 133 MHz, 264 KB SRAM, 2 MB Flash, castellated edges for SMD mounting and USB-C for drag-and-drop programming

  • CPU TypeOther
  • Pico-like board built on Raspberry Pi RP2040 chip
  • Dual-core Arm Cortex M0+ processor running up to 133 MHz
  • 264 KB SRAM and 2 MB on-board Flash memory
  • 29 multi-function GPIO pins with 20 on edge pinout
  • Castellated module design enables direct SMD soldering to carrier boards

RP2040-Zero Development Board

The WaveShare RP2040-Zero is a Pico-like microcontroller board built around the Raspberry Pi RP2040 chip. It provides a dual-core Arm Cortex-M0+ processor with a flexible clock running up to 133 MHz. The board includes 264 KB of SRAM and 2 MB of on-board Flash memory. Its castellated module design makes it suitable for surface-mount applications on custom carrier boards.

Sustained Operation

The RP2040 chip supports low-power sleep and dormant modes for efficient long-term deployment. Accelerated floating-point libraries on-chip help maintain throughput during continuous compute tasks. Eight Programmable I/O state machines handle custom peripheral timing without burdening the main cores. A USB 1.1 interface with device and host support provides a stable connection for data logging or control.

Integration Checklist

Verify that your carrier board layout matches the castellated edge pinout for direct soldering. The board ships without pin headers, so plan for hand soldering or reflow assembly. Confirm your toolchain supports C/C++ or MicroPython development for the RP2040 target. Ensure the USB-C connector orientation fits your enclosure design for programming and power.

Highlights

  • Pico-like board built on Raspberry Pi RP2040 chip
  • Dual-core Arm Cortex M0+ processor running up to 133 MHz
  • 264 KB SRAM and 2 MB on-board Flash memory
  • 29 multi-function GPIO pins with 20 on edge pinout
  • Castellated module design enables direct SMD soldering to carrier boards

Specifications

CPU TypeOther

Questions about this item

How much power does the RP2040-Zero draw when running continuously at 133 MHz?

The RP2040 microcontroller features low-power sleep and dormant modes to reduce consumption during idle periods, and the board operates from the 5 V USB-C supply.

What do I need to connect the castellated module to my own carrier board?

The board uses castellated edges for direct SMD soldering; no pin headers are fitted, so you will need solder paste or wire and a reflow or hand-soldering setup to attach it.

Can I use the 20 edge GPIO pins alongside a Raspberry Pi Pico add-on board?

The RP2040-Zero provides 20 multi-function GPIO pins on its edge pinout with the same RP2040 peripheral functions, but the physical spacing differs from the Pico, so a direct mechanical fit is not possible.

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