# 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.

**13 device listed.**

## Holybro Pixhawk 6C

Open-source flight controller based on the Pixhawk FMUv6C standard. Features STM32H743 processor, dual redundant IMUs, barometer, and magnetometer. Runs ArduPilot or PX4 autopilot firmware.

[Details](https://openhardware.directory/devices/holybro-pixhawk-6c) | [Markdown](https://openhardware.directory/devices/holybro-pixhawk-6c/md)

## Holybro Pixhawk 4

Open-source flight controller based on the Pixhawk FMUv5 standard. Features STM32F765 processor at 216MHz, triple redundant IMUs, barometer, and magnetometer. Runs ArduPilot or PX4 autopilot firmware.

[Details](https://openhardware.directory/devices/holybro-pixhawk-4) | [Markdown](https://openhardware.directory/devices/holybro-pixhawk-4/md)

## Adafruit Metro M7 with microSD

High-performance Arduino-compatible board powered by the NXP iMX RT1011 Cortex-M7 at 500 MHz, with 8MB QSPI flash, microSD slot, STEMMA QT, and USB-C.

[Details](https://openhardware.directory/devices/adafruit-metro-m7) | [Markdown](https://openhardware.directory/devices/adafruit-metro-m7/md)

## Adafruit Metro M7 with AirLift

Arduino UNO-compatible Metro board powered by NXP iMX RT1011 at 500 MHz with an ESP32 AirLift WiFi co-processor, 8 MB QSPI Flash, and USB-C — Adafruit's fastest Metro ever.

[Details](https://openhardware.directory/devices/adafruit-metro-m7-airlift) | [Markdown](https://openhardware.directory/devices/adafruit-metro-m7-airlift/md)

## PJRC Teensy 4.1

High-performance microcontroller with NXP i.MX RT1062 ARM Cortex-M7 @ 600MHz, 1MB RAM, 2MB Flash, 100Mbps Ethernet PHY, SD card, 55 GPIO, dual 480Mbps USB, and 3 CAN Bus. Expanded Teensy 4.0 sibling.

[Details](https://openhardware.directory/devices/pjrc-teensy-4-1) | [Markdown](https://openhardware.directory/devices/pjrc-teensy-4-1/md)

## Arduino GIGA R1 WiFi

Arduino's most powerful board — dual-core STM32H747XI with Cortex-M7 at 480MHz + Cortex-M4 at 240MHz, 2MB flash, 1MB RAM, WiFi, Bluetooth, 76 GPIO, USB-A + USB-C, 3.5mm audio jack, camera connector, and CAN bus in Mega/Due form factor.

[Details](https://openhardware.directory/devices/arduino-giga-r1-wifi) | [Markdown](https://openhardware.directory/devices/arduino-giga-r1-wifi/md)

## Arduino Nicla Vision

Tiny 22.86mm AI vision module with STM32H747 dual-core Cortex-M7/M4, 2MP camera, WiFi/BLE, 6-axis IMU, microphone, and time-of-flight sensor — runs TinyML image recognition and OpenMV/MicroPython at the edge.

[Details](https://openhardware.directory/devices/arduino-nicla-vision) | [Markdown](https://openhardware.directory/devices/arduino-nicla-vision/md)

## Arduino Opta WiFi

Industrial micro PLC with STM32H747 dual-core Cortex-M7/M4, WiFi, BLE, Ethernet, 4\u00d72.3kW relays, Modbus TCP/RTU, hardware security, DIN rail mount, and IEC 61131-3 PLC programming — co-developed with Finder for real industrial automation.

[Details](https://openhardware.directory/devices/arduino-opta-wifi) | [Markdown](https://openhardware.directory/devices/arduino-opta-wifi/md)

## Arduino Opta Lite

Entry-level industrial micro PLC with STM32H747 dual-core Cortex-M7/M4, Ethernet, 4\u00d72.3kW relays, Modbus TCP, hardware security, DIN rail mount, and IEC 61131-3 PLC programming — the affordable path to Arduino-powered industrial control.

[Details](https://openhardware.directory/devices/arduino-opta-lite) | [Markdown](https://openhardware.directory/devices/arduino-opta-lite/md)

## BigTreeTech SKR 3

High-performance 32-bit 3D printer board with STM32H743VI @ 480MHz, 5 driver slots, CAN bus, FDCAN, WiFi module support, 12–24V, 10A bed output. Marlin, Klipper, and RepRapFirmware compatible.

[Details](https://openhardware.directory/devices/bigtreetech-skr-3) | [Markdown](https://openhardware.directory/devices/bigtreetech-skr-3/md)

## BigTreeTech SKR 3 EZ

Advanced 32-bit 3D printer board with STM32H743VI @ 480MHz and EZ driver system (tool-free). 5 EZ driver slots, CAN/FDCAN, WiFi module support, 10A bed, 12–24V. Marlin, Klipper, RRF ready.

[Details](https://openhardware.directory/devices/bigtreetech-skr-3-ez) | [Markdown](https://openhardware.directory/devices/bigtreetech-skr-3-ez/md)

## BigTreeTech Octopus Pro V1.1

High-voltage 3D printer control board with STM32H723ZE MCU, 8 stepper driver slots supporting up to 60V motor power, CAN bus, PT100/PT1000 support, and Marlin/Klipper/RRF firmware.

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

## BigTreeTech Octopus Max EZ V1.0

High-end 32-bit 3D printer control board with STM32H723ZET6 MCU at 550MHz, 10 EZ-socket stepper driver slots, CAN bus, eFuse protection, and Marlin/Klipper firmware support.

[Details](https://openhardware.directory/devices/bigtreetech-octopus-max-ez-v1-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-octopus-max-ez-v1-0/md)