The RP2040 is a 32-bit dual ARM Cortex-M0+ microcontroller integrated circuit by Raspberry Pi Foundation.At the same time, it was released as part of the Raspberry Pi Pico board

The Pro Micro RP2040 is a low-cost, high performance board with flexible digital interfaces featuring the Raspberry Pi Foundation's RP2040 microcontroller. Besides the good 'ol Pro Micro footprint, the board also includes a WS2812B addressable LED, boot button, reset button, Qwiic connector, USB-C, resettable PTC fuse, and castellated pads.

The RP2040 utilizes dual ARM Cortex-M0+ processors (up to 133MHz) and features:

264kB of embedded SRAM in six banks

Six dedicated IO for SPI Flash (supporting XIP)

30 multifunction GPIO

Dedicated hardware for commonly used peripherals

Programmable IO for extended peripheral support

Four channel ADC with internal temperature sensor, 0.5 MSa/s, 12-bit conversion

USB 1.1 Host/Device

The RP2040 is supported with both C/C++ and MicroPython cross-platform development environments, including easy access to runtime debugging. It has UF2 boot and floating-point routines baked into the chip. The built-in USB can act as both device and host. It has two symmetric cores and high internal bandwidth, making it useful for signal processing and video. While the chip has a large amount of internal RAM, the board includes an additional 16MB external QSPI flash chip to store program code.

The SparkFun Qwiic Connect System is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.

This latest revision is functionally identical to the previous version, with slight component layout changes for DFM.

RP2040 General Features

Dual Cortex M0+ processors, up to 133 MHz

264 kB of embedded SRAM in 6 banks

6 dedicated IO for QSPI flash, supporting execute in place (XIP)

30 programmable IO for extended peripheral support

SWD interface

Timer with 4 alarms

Real time counter (RTC)

USB 1.1 Host/Device functionality

Supported programming languages

MicroPython

C/C++

SparkFun Pro Micro - RP2040 Features

Raspberry Pi Foundation's RP2040 microcontroller

AP2112 3.3V voltage regulator

Support programming languages

MicroPython

C/C++

On-board USB-C connector for programming

USB 1.1 Host/Device functionality

Built-in Resettable PTC Fuse

PTH pads w/ castellated edges

20x multifunctional GPIO Pins 

4x 12-bit ADC channels with internal temperature sensor, 0.5 MSa/s, 12-bit

10x PWM channels

Serial Peripherals

2x UARTs

1x I2C (Qwiic enabled)

1x SPI

Buttons

Boot

Reset

LEDs

Power

WS2812 Addressable LED

16MB External Flash Memory

Dimensions: 1.3in x 0.7in

[1] Note: The GPIO pins are muxed so you can reconfigure the pins for the digital interface of your choice! Check out the RP2040 datasheet for more information on the pins that are broken out on the board.