We have build a Robotic Arm using Arduino Nano, an interactive robotics system that translates human hand movements into real-time robotic motion. This Arduino Robotic Arm is for engineering students who want practical exposure to embedded systems, sensors, and real-time control.
Components Used
- Arduino UNO
- 3 × MG995 High-Torque Servo Motors
- 3 × Micro Servo Motors
- Breadboard
- Jumper Wires
- 3D Printed Parts
- Screws & Assembly Hardware
- External 5V Power Supply
Robotic Arm Fundamentals
Robotic Arm Joints
Joints allow bending and rotation, similar to human elbows and wrists. In a 6-axis arm, six joints work together to achieve complex 3D positioning.
Degrees of Freedom (DOF)
DOF represents independent movements.
- 1 DOF → One direction movement
- 3 DOF → Basic 3D movement
- 6 DOF → Human-like flexibility
Servo Motor Control
Servo motors rotate to specific angles (0°–180°) using PWM signals. Proper torque selection is important for lifting weight safely.
Power Management
Multiple servos require an external 5V power supply. USB power from Arduino is not sufficient.
3D Design & Printing
The robotic arm structure is fabricated using 3D printing for lightweight and easy assembly.
Real-World Applications
Although this project appears simple, its core concept is widely used in advanced systems -- Industrial robotic manipulators
- Remote-controlled robotic systems
- Prosthetic hand control systems
- Hazardous material handling robots
- Surgical robotic systems
The Arduino Robotic Arm using Arduino UNO is more than a DIY robotics build - it’s a stepping stone into real-world automation and intelligent systems.
If you're serious about robotics, automation, or mechatronics, this is exactly the kind of project that strengthens your fundamentals while staying exciting and hands-on.
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