AI-Assisted Voice Controlled Prosthetic Arm using High-Performance Embedded Microcontroller
DOI:
https://doi.org/10.15662/IJEETR.2026.0802360Keywords:
Voice Controlled Prosthetic Arm, Arduino Uno, Speech Recognition, Servo Motor, Bluetooth Communication, Assistive Technology, Embedded Microcontroller, Upper-Limb Amputee, RehabilitationAbstract
The AI-Assisted Voice Controlled Prosthetic Arm is an innovative assistive technology designed to help physically challenged individuals, particularly upper-limb amputees, regain hand movement and functionality through simple voice commands. The system employs a microphone module to capture the user's speech, which is processed through a speech recognition module and controlled by an Arduino Uno microcontroller. Recognized commands activate servo motors that drive mechanical movements of the prosthetic arm, enabling actions such as grip, release, lift, and rotation.
The proposed system is built around an Arduino Uno that receives spoken commands over a Bluetooth link and translates them into precise servo motor movements. A voltage regulator provides stable 5V power rails for the Arduino and servo motors. The Arduino parses short command strings such as OPEN, CLOSE, GRIP, LIFT, and ROTATE, generating corresponding PWM signals to four servo motors that control the hand, wrist, elbow, and forearm motions.
System status and active commands are displayed on an I2C LCD module, while safety is ensured through software timeouts and an emergency STOP command. This design eliminates the need for complex manual control mechanisms and provides a natural, intuitive interface for users. The proposed system is cost-effective, portable, and customizable, making it suitable for real-world prosthetic and rehabilitation applications.
Overall, this project demonstrates the potential of integrating voice recognition with high-performance embedded systems to enhance the quality of life for amputees through intelligent, user-friendly prosthetic solutions that bridge the gap between assistive technology and human needs
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