# 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.

**7 device listed.**

## Waveshare RoArm-M1

ESP32-based 5-DOF desktop robotic arm with high-torque serial bus servos, WiFi/Bluetooth control, motion recording, inverse kinematics, and ROS 2 support. Carbon fiber and aluminum construction.

[Details](https://openhardware.directory/devices/waveshare-roarm-m1) | [Markdown](https://openhardware.directory/devices/waveshare-roarm-m1/md)

## Waveshare RoArm-M2-S

ESP32-based 4-DOF robotic arm with 360-degree base rotation, 500g payload at 300mm reach, dual-drive shoulder joint, 9-axis IMU, and ROS 2 + LeRobot compatibility. Under 850g total weight.

[Details](https://openhardware.directory/devices/waveshare-roarm-m2-s) | [Markdown](https://openhardware.directory/devices/waveshare-roarm-m2-s/md)

## Waveshare RoArm-M3

ESP32-based 5+1 DOF robotic arm with 1kg payload, 360-degree base, dual-drive shoulder, 7 servos, 9-axis IMU, TF card slot, and ROS 2 + LeRobot support. Carbon fiber and aluminum build.

[Details](https://openhardware.directory/devices/waveshare-roarm-m3) | [Markdown](https://openhardware.directory/devices/waveshare-roarm-m3/md)

## Arduino Mega 2560 R3

High-pin-count Arduino board based on the ATmega2560 at 16 MHz with 256KB flash, 54 digital I/O pins, 16 analog inputs, and 4 hardware UARTs for complex projects.

[Details](https://openhardware.directory/devices/arduino-mega-2560-r3) | [Markdown](https://openhardware.directory/devices/arduino-mega-2560-r3/md)

## Arduino Leonardo

Arduino board with ATmega32u4 featuring native USB — no separate USB chip needed — allowing it to emulate keyboards, mice, and joysticks while maintaining full Arduino IDE compatibility.

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

## Arduino Due

Arduino's first 32-bit ARM board based on the AT91SAM3X8E Cortex-M3 at 84 MHz with 512KB flash, 96KB SRAM, dual USB ports, 2 DACs, and 12 PWM channels in Mega form factor.

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

## Arduino Zero

32-bit ARM Cortex-M0+ Arduino in UNO form factor with ATSAMD21G18 at 48 MHz, 256KB flash, 32KB SRAM, onboard EDBG debugger, dual USB ports, 12-bit ADC/DAC — designed for IoT, wearables, and robotics.

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