IOT Based Smart Air Mouse and Voice Home Automation

This project presents the design a development of an offline voice-controlled wireless device control system using the AI-Thinker VC-02 voice recognition module and ESP32microcontrollers. The main objective of the project is to control electrical devices through voice commands without the use of internet connectivity, ensuring fast response, reliability, and enhanced privacy. The system utilizes embedded technology and wireless communication to provide a compact and efficient automation solution. The proposed system consists of two ESP32 microcontrollers communicating through the ESP-NOW wireless protocol. The transmitter section includes the VC-02 offline voice recognition module interfaced with an ESP32. This module is capable of recognizing predefined voice commands and transmitting corresponding hexadecimal command signals through serial communication. The ESP32 receives these commands and sends them wirelessly to another ESP32 using ESP-NOW, a low-power peer-to-peer communication protocol that does not require a Wi-Fi router or internet connection. The receiver ESP32 processes the received command and controls connected output devices such as an LED and a 12V DC fan using 2N2222 transistor switching circuits. The use of transistors instead of relay modules ensures faster switching, compact design, and reduced power consumption. The system demonstrates efficient wireless communication and reliable device control based on voice commands. This project offers a cost-effective, secure, and scalable solution for smart automation systems. It can be applied in smart homes, industrial automation, and assistive technologies where hands-free device control is required. The system can be further expanded to include multiple devices, display units, and additional automation features, making it suitable for real-time and practical applications in modern embedded systems.