The Pimoroni Tiny 2350 – 4MB is a postage stamp-sized RP2350 development board with a USB-C connection perfect for portable projects, wearables, and embedding into stuff.

While the team at Pimoroni loves the Raspberry Pi Pico, they also wanted something smaller with a bunch more flash on board. Introducing the Tiny 2350 – a teeny tiny powerhouse with the chops to realize truly ambitious projects. It packs all the power of a dual-core Cortex M33 processor with 512KB of SRAM and 4MB of flash into a thumbnail-size PCB.

Programmable via USB-C, Tiny 2350 comes with 4MB of flash storage on board. The board is designed with castellated pads to allow it to be directly soldered onto a PCB (or you can attach headers to hook it up on a breadboard or connect things to it directly with wires). They’ve also managed to fit in a programmable RGB LED, a reset button, a Qw/ST  (Qwiic/Stemma) connector for connecting up I2C devices, and some clever circuitry that lets you use the boot button as a user-controllable switch.

It’s compatible with firmware built for the Raspberry Pi Pico 2 but offers a reduced number of pins due to its size. You can even run CircuitPython, Arduino IDE or MicroPython on it!