The Robotic Arm follows a programmed trajectory whose joint angles are defined in MATLAB and sent to the Arm`s servos through Arduino microcontroller.
The video demonstrates the full operational ability of all the servos used in the Arm and thus enables one to visualize its degree of freedom and workspace requirements.
Note:
The operation being done by the Robotic Arm in the video can also be done using Arduino alone. But, for further improvements like Automated vision guided pick and place etc, the coding is done in MATLAB