Design and Development of an ESP32-Based WiFi Controlled Smart Robotic Car

Abstract: The rapid advancement of Internet of Things (IoT) technologies has significantly influenced the development of smart and remotely operated systems. This paper presents the design and development of an ESP32-based WiFi controlled smart robotic car that enables real-time wireless control using a mobile or web-based interface. The system utilizes the Espressif Systems ESP32 microcontroller, which integrates both WiFi and Bluetooth capabilities, making it a cost-effective and efficient solution for wireless communication and embedded control applications. The proposed robotic car is designed to be compact, energy-efficient, and user-friendly. It consists of key hardware components including the ESP32 microcontroller, motor driver module, DC motors, power supply unit, and chassis. The ESP32 acts as the central processing unit, receiving commands over a WiFi network and transmitting control signals to the motor driver for directional movement such as forward, backward, left, and right. A dedicated mobile application or web server interface is used to send commands to the robotic car, enabling seamless remote operation within the network range. The system architecture is developed with an emphasis on reliability, low latency, and ease of implementation. The communication between the user interface and the robotic car is established using standard TCP/IP protocols, ensuring stable and real-time performance. Additionally, the integration of IoT-based control allows scalability for future enhancements such as camera-based surveillance, obstacle detection, and autonomous navigation. Experimental results demonstrate that the developed system provides stable connectivity, responsive control, and efficient power utilization. The robotic car exhibits minimal delay in command execution and performs effectively in indoor environments within the WiFi coverage area. The proposed model is particularly suitable for applications in surveillance, education, home automation, and smart mobility systems. Overall, this work highlights a practical and economical approach to designing a WiFi-controlled robotic vehicle using the ESP32 platform. The system’s flexibility and scalability make it a promising solution for both academic research and real-world IoT-based applications. Keywords: ESP32, WiFi Controlled Car, IoT, Robotic Vehicle, Wireless Communication, Smart Automation, Embedded Systems