RAMSoc Robotic Arm Workshop

A 2-DOF robotic arm controlled by an Arduino Uno, using inverse kinematics to move to user-specified (x, y) coordinates.

How It Works

The arm has two links (shoulder and elbow) driven by servo motors. Given a target coordinate, the code solves the inverse kinematics equations to find the required joint angles and drives the servos accordingly.

• Link 1 (shoulder): 45mm
• Link 2 (elbow): 103mm
• Reachable range: 58mm – 148mm from the base

Hardware

• Arduino Uno
• 2× servo motors (shoulder on pin 10, elbow on pin 11)
• 1× claw servo (pin 9)

Usage

1. Upload robotic_arm_code.ino to the Arduino via the Arduino IDE.
2. Open the Serial Monitor at 9600 baud.
3. Type coordinates as x,y (in mm) and press Enter.

100,50
140,0
80,80

The arm will move to the target if it's within reach, or print an error if it's not.