RP2040-Zero Mini Development Board — Dual-Core Cortex-M0+, 133MHz, 2MB Flash, USB-C

RP2040-Zero Mini Development Board — Dual-Core Cortex-M0+, 133MHz, 2MB Flash

The RP2040-Zero is a compact development board based on the Raspberry Pi RP2040 microcontroller — the same chip as the Raspberry Pi Pico, in a smaller form factor with USB-C connector and castellated edges for direct PCB soldering. The dual-core ARM Cortex-M0+ running at up to 133MHz, 264KB SRAM, and 2MB on-board flash make it a powerful yet affordable microcontroller for embedded projects. Programmable in MicroPython, CircuitPython, and C/C++ via the Raspberry Pi Pico SDK.

Hardware Specifications

• MCU: Raspberry Pi RP2040
• CPU: Dual-core ARM Cortex-M0+ @ up to 133MHz
• SRAM: 264KB (on-chip)
• Flash: 2MB (W25Q16 SPI NOR flash)
• GPIO: 29 multi-function pins
• ADC: 4 × 12-bit channels
• PWM: 16 channels
• PIO: 2 × 8 state machines (programmable I/O)
• USB: USB-C (USB 1.1 device/host)
• Form Factor: Compact (castellated edges for PCB soldering)
• Programming: MicroPython, CircuitPython, C/C++ (Pico SDK)

RP2040-Zero vs Raspberry Pi Pico

• RP2040-Zero (this board): Smaller footprint, USB-C, castellated edges, RGB LED — for space-constrained and PCB-embedded designs
• Raspberry Pi Pico: Larger, micro-USB, more GPIO exposed, official board — for breadboard prototyping
• Same RP2040 chip — identical programming environment

RP2040 PIO — Unique Feature

• Programmable I/O (PIO) state machines implement custom protocols in hardware
• Generate WS2812 LED signals, SPI, I²S audio, stepper motor control without CPU overhead
• Unique to RP2040 — not available on AVR or ESP32

Typical Applications

• USB HID device (keyboard, gamepad, MIDI)
• WS2812 RGB LED controller (via PIO)
• Compact IoT sensor node
• Custom PCB embedded microcontroller
• MicroPython learning platform

RP2040-Zero mini board — dual-core Cortex-M0+ 133MHz, 2MB flash, USB-C, 29 GPIO, PIO for MicroPython and C/C++ embedded projects in compact form factor.

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