# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**5 device listed.**

## PocketBeagle 2

Ultra-compact open-source Linux SBC by BeagleBoard.org, powered by the TI AM625 SoC with 512MB LPDDR4, USB-C OTG, and microSD — designed for deeply embedded projects where minimal size matters.

[Details](https://openhardware.directory/devices/pocketbeagle-2) | [Markdown](https://openhardware.directory/devices/pocketbeagle-2/md)

## Adafruit ItsyBitsy 32u4 3V 8MHz

Ultra-compact 3.3V Arduino-compatible board with ATmega32u4 at 8MHz, native USB HID, 23 GPIO pins, 2KB RAM, 28KB flash, and Micro USB. Measures 35mm × 17mm — smaller than a Feather with equivalent AVR capability.

[Details](https://openhardware.directory/devices/adafruit-itsybitsy-32u4-3v) | [Markdown](https://openhardware.directory/devices/adafruit-itsybitsy-32u4-3v/md)

## Adafruit ItsyBitsy 32u4 5V 16MHz

Ultra-compact 5V Arduino-compatible board with ATmega32u4 at 16MHz, native USB HID, 23 GPIO pins, 2KB RAM, 28KB flash, and Micro USB. Measures 35mm × 18mm — small form factor with full Arduino Leonardo capability.

[Details](https://openhardware.directory/devices/adafruit-itsybitsy-32u4-5v) | [Markdown](https://openhardware.directory/devices/adafruit-itsybitsy-32u4-5v/md)

## Adafruit ItsyBitsy M0 Express

Compact 3.3V CircuitPython/Arduino board with ATSAMD21G18 Cortex M0+ at 48MHz, 32KB RAM, 256KB flash, 2MB SPI flash, 23 GPIO with 11 analog inputs, RGB DotStar LED, native USB. Measures 36mm × 18mm.

[Details](https://openhardware.directory/devices/adafruit-itsybitsy-m0-express) | [Markdown](https://openhardware.directory/devices/adafruit-itsybitsy-m0-express/md)

## Adafruit ItsyBitsy M4 Express

High-performance compact board with ATSAMD51 Cortex M4F at 120MHz, 192KB RAM, 512KB flash, 2MB SPI flash, dual 12-bit DAC/ADC, 18 PWM outputs, AES-256 crypto, and native USB. Measures 36mm × 18mm.

[Details](https://openhardware.directory/devices/adafruit-itsybitsy-m4-express) | [Markdown](https://openhardware.directory/devices/adafruit-itsybitsy-m4-express/md)