The DEV-17720 board featuring Raspberry Pi RP2040 microcontroller is a low-cost, high-performance board with flexible digital interfaces. The board takes advantage of the MicroMod M.2 connector to easily swap out processor boards on carrier boards.
RP2040 dual ARM Cortex-M0+ processors:

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++

Peripherals on MicroMod RP2040

1x USB dedicated for programming and debug (Host capable)

2x UARTs

2x I2C

2x SPI

29x GPIO

2x Digital Pins

3x Analog Pins

16x PWM

128Mbit/16MB (external) flash memory

Status LED

VIN Level ADC

Resources

Schematic

Eagle Files

Board Dimensions

Hookup Guide

Graphical Datasheet

RP2040 Datasheet

Raspberry Pi Pico Datasheet- An RP2040-based microcontroller board

Getting Started with Raspberry Pi Pico- C/C++ development with Raspberry Pi Pico and other RP2040-based microcontroller boards

Raspberry Pi Pico C/C++ SDK- Libraries and tools for C/C++ development on RP2040 microcontrollers

Raspberry Pi Pico Python SDK- A MicroPython environment for RP2040 microcontrollers

RP2040 Info Page

GitHub Hardware Repo