Waveshare RP2040-Zero
Ultra-compact RP2040 microcontroller board in a tiny form factor. Features dual-core Cortex-M0+ at 133 MHz, USB-C, onboard WS2812 RGB LED, and castellated pads. Raspberry Pi Pico compatible.
$3.99
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Specifications
Components
Raspberry Pi's custom dual-core ARM Cortex-M0+ microcontroller running at up to 133 MHz with 264 KB SRAM and programmable I/O.
Individually addressable RGB LED with integrated driver IC for colorful status indication.
Bus Interfaces
Waveshare RP2040-Zero
The RP2040-Zero is an ultra-compact development board from Waveshare built around the Raspberry Pi RP2040 microcontroller. It packs the full power of the dual-core Cortex-M0+ processor into a board roughly the size of a postage stamp, making it ideal for space-constrained embedded projects.
Key Features
- RP2040 dual-core ARM Cortex-M0+ at up to 133 MHz
- 264 KB SRAM and 2 MB onboard flash
- USB-C connector for power and programming
- Onboard WS2812 RGB LED for status indication
- 29 GPIO pins via castellated pads (20 exposed on headers)
- Ultra-compact form factor: 23.5 x 18 mm
- UF2 bootloader for drag-and-drop programming
- Castellated pads for direct SMD soldering
Programming Support
Fully compatible with the Raspberry Pi Pico software ecosystem:
- MicroPython — official RP2040 MicroPython port
- CircuitPython — Adafruit's Python variant
- C/C++ SDK — Raspberry Pi Pico SDK
- Arduino IDE — Arduino-Pico core
Pinout and Interfaces
- 2x SPI, 2x I2C, 2x UART
- 16x PWM channels
- 4x 12-bit ADC channels
- 8x PIO state machines
- USB 1.1 host and device support
Form Factor
The RP2040-Zero is designed to be as small as possible while still providing access to most RP2040 GPIO pins. The castellated pads allow it to be soldered directly onto a carrier PCB, making it perfect for custom hardware designs and embedded products.
Use Cases
5IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Prototyping
Rapid hardware prototyping and proof-of-concept development with breadboard-friendly form factors and accessible development environments.
Embedded Systems
Wearables
Education
Teaching programming, electronics, and computer science concepts. Popular in schools, universities, and coding bootcamps.
Resources
Where to Buy
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