Product description
Pimoroni PIM721 – Tiny RP2350 (4 MB). PIM721, also known as Tiny 2350, is a development board based on the RP2350 microcontroller from Raspberry Pi. The board combines a compact form factor with powerful architecture.
Specifications:
Processor and memory:
- RP2350A from Raspberry Pi
- Dual-core Cortex-M33, up to 150 MHz, 520 kB SRAM
- 4 MB QSPI flash (supports eXecute-in-Place, XiP)
Power supply:
- Operating voltage: 3.0 – 5.5 V or via USB-C
- Onboard 3.3 V regulator with max 300 mA output current
- Logic voltage: 3.3 V
I/O and interfaces:
- 12 general-purpose I/O pins, 4 of which support 12-bit ADC
- Reset and BOOT button (BOOT can also be used as a user button)
- Programming and power via USB-C
- I²C connection via standard Qwiic connector
- Onboard RGB LED, controllable via PWM
Mechanical and mounting:
- Dimensions: 23 × 18 × 5.8 mm
- Castellated pads for direct PCB mounting
- Pin headers for breadboard use not included
Programming support and compatibility:
- Supports MicroPython, C/C++, and variants such as CircuitPython
- Compatible with Raspberry Pi Pico 2 firmware (with reduced I/O depending on board layout)
Advantages and applications:
- Compact size with high performance – ideal for portable, embedded, and space-constrained projects
- Suitable for wearables, IoT devices, prototypes, and projects requiring a small footprint
- Qwiic interface makes it easy to connect sensors and breakout boards
- Direct PCB mounting (castellated pads) provides design flexibility – choose between soldering the board or using pin headers
- The onboard RGB LED provides useful feedback directly on the board, for example for diagnostics and status indication
