Tiny 2350

While we love the Raspberry Pi Pico we also wanted something smaller and with a bunch more flash on board. Introducing the Tiny 2350 - a teeny tiny powerhouse with the chops to realise truly ambitious projects.

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 pin headers to hook it up on a breadboard or connect things to it directly with wires). We've also managed to fit in a programmable RGB LED, a reset button, a Qw/ST 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 fewer pins due to its size. You can even run MicroPython on it!

Features

• Powered by RP2350A (Dual Arm Cortex M33 running at up to 150MHz with 520KB of SRAM)
• 4MB of QSPI flash supporting XiP
• USB-C connector for power, programming, and data transfer
• User-controllable RGB LED
• Qw/ST (Qwiic/STEMMA QT) connector for attaching breakouts
• Twelve IO pins (including four 12-bit ADC channels)
• Reset and BOOT buttons (the BOOT button can also be used as a user button)
• On-board 3V3 regulator (max regulator current output 300mA)
• Input voltage range 3V - 5.5V
• Programmable with C/C++ or MicroPython
• Dimensions: approx 22.9 x 18 x 5.8mm (L x W x H, including the USB-C port)

Resources

• RP2350 MicroPython builds and examples
• Pinout PDF Version

Pinout

Notes

• It is also useful for putting your Tiny 2350 into bootloader mode, and you can also use the BOOT button as a user switch. It's wired to GP23 and active low.
• The RGB LED is connected to GP18-GP20 and active low (so the on/off state will work in the opposite way to the LED on a Raspberry Pi Pico). You can PWM the pins to dim the LED - check out Tonygo2's MicroPython example.