Bluetooth And Arduino Uno-Based Voice-Controlled Home Automation System

This research presents the design and implementation of a voice-controlled home automation system using Bluetooth communication and the Arduino Uno microcontroller. The primary goal of the system is to offer a cost-effective, user-friendly solution for controlling household electrical appliances using voice commands, with a particular focus on aiding elderly and physically challenged individuals.The system architecture integrates an HC-05 Bluetooth module for wireless communication, a 2-channel relay module to control AC devices, and an Arduino Uno as the central processing unit. Voice commands are issued via an Android smartphone application, which transmits instructions to the Arduino through the Bluetooth module. Upon receiving the commands, the Arduino processes the input and triggers the corresponding relay to turn appliances on or off.The prototype was tested successfully with standard home lighting, demonstrating high accuracy, low latency, and reliable performance within the typical Bluetooth communication range. The results confirm the feasibility of the proposed system in real-world home environments. This project highlights the potential of combining embedded systems and wireless technology to enhance home automation, improve accessibility, and contribute to the development of smart living spaces.