Blynk-integrated ESP32 Based IoT System for Smart Home Light and Fan Control

Abstract

The Internet of Things (IoT) has significantly transformed smart home automation by facilitating remote control and monitoring of household appliances. This paper presents the design and evaluation of a smart home system utilizing an ESP32 microcontroller integrated with the Blynk application for controlling lights and fans. The ESP32's robust processing power, built-in Wi-Fi, and Bluetooth capabilities, combined with Blynk's intuitive interface, offer a cost-effective and scalable solution for smart home automation. Thus, the system enables remote management of lighting and fan operations, including scheduling and energy consumption monitoring, thereby enhancing convenience, energy efficiency, and user control. The system's main components include the ESP32 microcontroller, relay modules for high-voltage control, an L298N motor driver for fan speed and direction, and a ME60N03 MOSFET PWM controller for adjustable light brightness. Hence, the system's design addresses challenges such as reliable Wi-Fi connectivity and device state synchronization, demonstrating practical applications of IoT in home automation. Results indicate that the system effectively integrates hardware and software to provide real-time feedback and control. Future work will incorporate ambient light sensors to optimize energy efficiency and user comfort by adjusting device operation based on environmental conditions. This research underscores the potential of combining advanced microcontroller technology with user-friendly IoT platforms to develop adaptable and efficient smart home systems.