IOT – Enabled Smart Street Light Using ESP32

DOI

https://www.doi.org/10.59256/ijsreat.20260603023

Published In

Volume 6, Issue 3 (2026)

Published Online

May-June 2026

Pages

160-165

Article Type

Original Article

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The proposed project presents a Smart Solar-Based Automatic Street Light and Weather Monitoring System using ESP32 and Blynk IOT platform. The system is designed to provide energy-efficient street lighting along with real-time environmental monitoring using renewable energy sources. The system utilizes a solar panel to generate electrical energy, which is stored in a battery through a charging module. The stored energy powers the ESP32 microcontroller, which acts as the central control unit. Multiple sensors such as LDR (Light Dependent Resistor), IR sensor, DHT11 temperature sensor, and rain sensor are integrated to monitor environmental conditions. Based on the LDR readings, the system automatically distinguishes between day and night conditions. During daytime, the street lights remain OFF to conserve energy. At night, the system operates in energy-saving mode by maintaining LEDs at 50% brightness, and when a vehicle is detected using the IR sensor, the brightness increases to 100%, ensuring safety and visibility. Additionally, the system monitors temperature and rainfall conditions, displaying real-time data on a 16×2 LCD. The collected data is also transmitted to the Blynk IOT platform via Wi-Fi, enabling remote monitoring and control. This system is highly efficient, cost-effective, and eco-friendly, as it reduces power consumption and utilizes renewable energy. It is suitable for smart city applications and helps in improving energy management, automation, and environmental awareness.