Arduino Mega 2560 REV3
The genuine Mega — 54 I/O pins and ample memory for a multi-joint arm and its sensors.
Best for: Multi-joint arms with sensors
🧠 Boards
Microcontroller Boards
The controller board runs your motion code, reads sensors and talks to the servo driver. An Arduino Mega is a popular pick for arms because its extra I/O and memory comfortably handle several joints plus a gripper, while Uno-class and ESP32 boards suit smaller or wireless builds. Genuine and quality-compatible boards both work with the Arduino IDE.
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ELEGOO MEGA 2560 R3 Board
Budget Mega-compatible board with USB cable — same pinout, lower cost.
Best for: Budget / classroom builds
ELEGOO Mega 2560 Complete Starter Kit
Mega board plus breadboard, jumpers, sensors and a tutorial — everything to prototype an arm’s electronics.
Best for: Electronics beginners
HiLetgo ESP-WROOM-32 ESP32 Development Board
Dual-core ESP32 with built-in Wi-Fi + Bluetooth — control your arm wirelessly, no extra radio.
Best for: Wireless / web-controlled arms
Learn how to use these
Builds by platform
Arduino Robotic Arm: Build a 4-DOF Servo Arm (Wiring + Code)
Build a 4-DOF Arduino robotic arm with hobby servos. Full parts list, wiring diagram, power tips and copy-paste Arduino code to control it with potentiometers or serial commands.
Code & electronicsArduino Robotic Arm Code: Sketches, Library & Examples
Copy-paste Arduino robotic arm code: Servo library setup, sweep tests, potentiometer and serial control, record/playback, smooth motion, and PCA9685.
Builds by platformRaspberry Pi Robotic Arm: Add Vision, AI and a Web Interface
Build a Raspberry Pi robotic arm — when to choose a Pi over Arduino, controlling servos with a PCA9685, adding camera vision, and driving the arm from a web browser with Python.