# 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.

**3 device listed.**

## DFRobot Maqueen Plus V3

Advanced micro:bit STEM robot with 8x8 matrix laser ranging, 5 line-tracking sensors with intersection recognition, magnetic encoders, PID control, and 6 RGB LEDs. Programmable via MakeCode and MicroPython.

[Details](https://openhardware.directory/devices/dfrobot-maqueen-plus-v3) | [Markdown](https://openhardware.directory/devices/dfrobot-maqueen-plus-v3/md)

## BBC micro:bit v2

Upgraded BBC micro:bit with Nordic nRF52833 Cortex-M4F, Bluetooth 5.1, 5×5 LED matrix, 2 buttons, capacitive touch logo, built-in speaker and MEMS microphone, edge connector, and low-power mode. Same form factor as v1.

[Details](https://openhardware.directory/devices/bbc-micro-bit-v2) | [Markdown](https://openhardware.directory/devices/bbc-micro-bit-v2/md)

## BigTreeTech Octopus V1.1

32-bit 3D printer control board with STM32F446ZET6 MCU, 8 stepper driver slots (9 outputs), CAN bus via RJ11, USB-C, WiFi header, and support for Marlin and Klipper firmware.

[Details](https://openhardware.directory/devices/bigtreetech-octopus-v1-1) | [Markdown](https://openhardware.directory/devices/bigtreetech-octopus-v1-1/md)