Build Your Own 4-Axis Robotic Arm with Arduino Uno & Potentiometer Control

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

This kit lets you assemble and control a 4-axis robotic arm using four SG90 servos and four 10kΩ potentiometers. Turn the knobs to move the shoulder, elbow, wrist, and gripper exactly where you want—no complex programming needed to see immediate analog control. Ideal for CBSE Class 12 physics practicals, B.Tech ECE mini projects, or any student exploring motor and motion control.

What You'll Build

By the end of this project, you'll have a fully functional miniature robotic arm that responds in real time to your potentiometer dialing. The four servos smoothly rotate each joint, while the gripper opens and closes on command. You can use it to pick up small objects, draw simple shapes, or demonstrate proportional control—a perfect foundation for more advanced automation or sensor-feedback systems.

What You'll Learn

• Mapping analog potentiometer readings to precise servo angles using Arduino's ADC and servo library
• Independent control of four servos simultaneously without signal interference
• Power management: using a dedicated 5V 2A supply to handle servo loads while keeping the Arduino stable
• Basic robotic kinematics: how changing one joint angle affects the end-effector position

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is built for CBSE Class 11-12 students tackling robotics and embedded systems in physics or computer science, for B.Tech ECE/EEE freshers prototyping mini projects at IIT, NIT, VIT or BITS, and for ATL Tinkering Lab enthusiasts exploring servo motor control. If you've ever wanted to move from blinking LEDs to real motion, this kit bridges that gap.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.