Abstract
This study presents the development of a surface electromyography (sEMG)-operated bionic hand equipped with pressure and temperature sensing capabilities. The primary objective is to restore functional hand movement and sensory feedback in amputees through a low-cost, customizable prosthetic system. The proposed device utilizes surface EMG signals acquired using a MyoWare sensor to control finger and joint actuation, with an Arduino UNO as the central processing unit. Pressure and thermal sensors are integrated to detect grip force and object temperature during real-time interactions. The bionic hand was designed using SolidWorks and fabricated via 3D printing with PLA material. Experimental validation demonstrates 98.2% motion accuracy, sub-second response time, and full repeatability in multiple test cycles. Despite minor limitations such as a 2% nominal error and susceptibility to environmental factors, the system shows no overheating or maintenance issues. The device represents a significant advancement in combining intuitive control with sensory feedback, making prosthetics more functional, responsive, and accessible.