ELEGOO MEGA 2560 R3 Board
Budget Mega-compatible board with USB cable — same pinout, lower cost.
Best for: Budget / classroom builds
by Arduino
★ Best for: Multi-joint arms with sensors
The genuine Mega — 54 I/O pins and ample memory for a multi-joint arm and its sensors.
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The Arduino Mega 2560 is a favourite brain for robotic arms because it simply does not run out of room: 54 digital I/O lines, 16 analog inputs and 256 KB of flash leave plenty of headroom for several joints, a gripper, limit switches and a serial link to a PC — without the cramped pin budget of an Uno. This is the genuine Arduino board (supporting the project), fully compatible with the Arduino IDE and every common servo and PCA9685 library. If you want one controller you will not outgrow as the build gets ambitious, the Mega is it.
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 & electronicsCopy-paste Arduino robotic arm code: Servo library setup, sweep tests, potentiometer and serial control, record/playback, smooth motion, and PCA9685.
Start hereLearn how to build a robotic arm from scratch — the parts, degrees of freedom, wiring and code you need, plus a clear path from your first servo to a working 6-axis arm.
Budget Mega-compatible board with USB cable — same pinout, lower cost.
Best for: Budget / classroom builds
Mega board plus breadboard, jumpers, sensors and a tutorial — everything to prototype an arm’s electronics.
Best for: Electronics beginners
Dual-core ESP32 with built-in Wi-Fi + Bluetooth — control your arm wirelessly, no extra radio.
Best for: Wireless / web-controlled arms