Adafruit Metro RP2350

Choo! Choo! The RP2350 Metro Line is packed with advanced hardware, making it an ideal development board for those seeking Arduino compatibility and extra debugging ports. It hosts a Raspberry Pi RP2350 chip with a 150MHz clock and 3.3V logic, paired with 16 MB of QSPI flash for ample program storage.

Specifications include 37 GPIO pins for versatile interfacing, a micro SD card socket for SPI/SPIo interfacing, and a 5V Buck Converter for efficient power management. The board's innovative RX/TX switch simplifies pin mapping, preventing the need for cut/solder traces, and the embedded USB UF2 bootloader streamlines firmware updates.

The RP2350 supports great C/C++, unofficial Arduino, MicroPython, and CircuitPython ports. CircuitPython is recommended for its ease of use and broad support. Although the RP2350 has extensive onboard RAM, the external 16 MB QSPI flash supports extensive file storage, greatly enhancing connectivity and versatility.

Inside the RP2350, Dual ARM Cortex-M33 cores or Dual RISC-V at 150MHz power through tasks with features like 520 kB on-chip SRAM, and hardware accelerators for enhanced performance. Note: The A2 version of the RP2350 has an E9 errata affecting certain GPIO and PIO aspects, requiring specific resistor configurations for pull-downs if necessary.