Abstract:
This research aims to conduct a simulation of the occurrence of electromyography signals
in two groups of forearm muscles. Two switches were used to control the movement of the robotic arm continuously as to mimic hand gestures. This project is developed from a simple robotic arm with an ability of two movement directions for grasping restricted size and shape of object. The goal of this research is to enable the robot arm to pick up and hold various objects with different sizes, shapes and weights. The robot arm should be able to perform four hand gestures, including hand opening, object grabbing (using five and two fingers), and pointing with the index finger. The grasping pressure rate should be set automatically by wireless control to accommodate handling of objects with different levels of sensitivity. Test results demonstrate that the robotic arm can handle various shapes and sizes of objects and perform the four hand gestures with continuous control
similar to human arm movement, with an accuracy of 97.77%. This research can be used as a guideline for applying actual electromyography signals to control artificial arms for disabled people who we can return to live routinely with a quality of life