Mechanical arms are robotic devices designed to mimic the movement and functionality of human arms. They can be used in various applications, including manufacturing, surgery, and assisting individuals with disabilities. These arms often consist of joints, motors, and sensors that allow for precise movements and tasks. In recent years, advancements in technology have led to the development of more sophisticated mechanical arms, such as those used in robotics and prosthetics. These devices can be controlled by the user's brain signals or through manual controls, providing greater independence and functionality for those who rely on them.