Arduino Based Voice Controlled Robot

Abstract

This paper presents the design and implementation of a Bluetooth voice-controlled robotic wheelchair, utilizing Bluetooth communication and Arduino technology to enable hands-free control via voice commands. The robot wheelchair responds to commands such as "Move Forward,""Move Backward,""Turn Left," and "Turn Right." The system employs an HC-05 Bluetooth module connected to an Arduino controller, which processes voice commands transmitted through an Android phone via Automatic Speech Recognition (ASR) technology. Upon recognition of a specific command, the robot's motors are activated accordingly to execute the movement. The system integrates real-time voice recognition and control mechanisms, incorporating an ultrasonic sensor for obstacle detection, a 16×2 LCD module for status display, and a voice module for audio feedback. The microcontroller is programmed using Embedded C language. This solution demonstrates the potential of voicedriven robotic movement for accessible navigation and assistive technology applications for physically disabled persons.