Arduino-Based Robotic Hand Using Flex Sensors

Abstract

An Arduino-based robotic hand using flex sensors is an embedded system designed to replicate human hand 
movements through gesture control. Flex sensors mounted on a glove detect finger bending and send analog signals 
to the Arduino microcontroller. The controller processes these signals and controls servo motors that move the fingers 
of the robotic hand accordingly. The system enables real-time actions such as gripping, holding, and releasing objects 
with good accuracy. 
The proposed system is simple, cost-effective, and easy to implement using an Arduino Uno, flex sensors, servo motors, 
and a wearable glove. It provides smooth and responsive gesture-based control without requiring complex image 
processing techniques. The robotic hand is suitable for applications in prosthetics, rehabilitation, industrial 
automation, educational robotics, and human–robot interaction. The implementation demonstrates reliable 
performance, accurate gesture replication, and efficient object handling, making it a practical solution for low-cost 
robotic hand development.