The Raspberry Pi RP2040 is a microcontroller that features a dual-core ARM Cortex-M0+ processor with a clock speed of up to 133MHz and 264KB of internal RAM. It supports USB 1.1 devices, which allows users to focus on implementing functions rather than spending a lot of time optimizing code.
The DFRobot Beetle RP2040 is a development board built around the RP2040 chip. It has a compact size of 27mm x 20mm, making it easy to embed into small devices or projects. The board has a user-friendly large pad design, which reduces the difficulty of soldering. It also provides 8 carefully selected GPIO ports that can be used as I2C, UART, SPI, digital, or analog ports, making it flexible and convenient for users to develop various applications.
Features

RP2040 microcontroller chip designed by Raspberry Pi

2M FLASH storage

Small size of 27mm x 20mm

Immersion gold pad for easy soldering

Support C++, MicroPython, and Arduino C programming

8 GPIO pins, I2C x 2, UART x 2, SPI x 1, digital port x 8, analog port x 2

Onboard BLINK_LED light

USB TYPE-C interface

Work well with USB 1.1 device

Resources

Product wiki

RP2040 Datasheet

Schematic

SDK