Regular Article

20 Sep 2026 | DOI:10.46335/IJIES.2026.11.5.3

Year : 2026 | Volume: 11 | Issue: 5 | Pages : 13-18

Traffic Sign Recognition to Automatic Speed Control in IoT-Enabled Electric Vehicles

1, Assistant Professor, India

Electric vehicles are increasingly being integrated with intelligent control technologies to improve automation and road safety. Traffic signs provide important information to road users, and a vehicle capable of recognizing these signs can automatically adjust its operating behavior. This paper presents a low-cost prototype for controlling the speed of an electric vehicle according to predefined traffic signs using an ESP32-CAM. The proposed system combines an ESP32-CAM for image capture and traffic-sign recognition, a NodeMCU for control or communication functionality, an L293D motor driver for motor interfacing, and a BO DC motor representing the vehicle drive motor. Four traffic-sign classes are considered: START, STOP, SPEED LIMIT 20, and SPEED LIMIT 60. Based on the detected sign, the controller generates a corresponding motor command. The START sign initiates motor operation, the STOP sign stops the motor, while the two speed-limit signs select lower and higher PWM control levels, respectively. PWM is used to regulate the motor through the L293D driver. The proposed prototype demonstrates the integration of camera-based traffic-sign recognition with embedded motor control using economical and easily available components. The system is intended primarily as an educational and research prototype and provides a foundation for future development involving additional traffic signs, speed feedback, obstacle detection, GPS-based speed zones, and fail-safe vehicle control.

References

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Keywords: Electric vehicle, ESP32-CAM, traffic sign recognition, NodeMCU

Citation: DR. PROSANJEET SARKAR*,DR. PROSANJEET SARKAR ( 2026), Traffic Sign Recognition to Automatic Speed Control in IoT-Enabled Electric Vehicles. , 11(5): 13-18

Received: 10/08/2026; Accepted: 16/09/2026;
Published: 20/09/2026

Edited by:

Mr.Index of Sciences

Reviewed by:

Prof. C.K.Tembhurkar, , ,

Copyright: Dr. Prosanjeet Sarkar, Khushi Vishwajit Meshram, Sharda Ramkrushna Giripunje, Arya Sunil Ayatwar, Pradnya Kishor Sangolkar, Sushma Ishwardas Shende ( 2026), Traffic Sign Recognition to Automatic Speed Control in IoT-Enabled Electric Vehicles. International Journal of Innovations in Engineering and Science, 11(5): 13-18..

*Correspondence: DR. PROSANJEET SARKAR, sarkarprosanjeet08@gmail.com