PROJECT DETAILS
Street lighting plays a critical role in urban infrastructure by providing safety and visibility. However, traditional street lamps consume a significant amount of energy. To address this issue, I developed Smart Street Lights, an Arduino Uno-based system that utilizes solar energy and smart sensors to optimize power usage. In this article, I'll share the development process, the challenges encountered, and key insights. Technology Stack and Architecture The project was built using a robust and scalable technology stack: Arduino Uno: Serves as the central controller for managing sensor inputs and controlling light intensity. PIR Sensor: Detects motion and adjusts brightness accordingly. LDR Sensor: Detects ambient light levels to determine when to turn lights on and off. Light Source: Provides adjustable brightness illumination. Battery Charging Module: Stores solar energy for nighttime use. Fan (Optional): Can be added to cool the system during extreme temperatures. On-Off Switch (Optional): Provides manual control when needed. System Functionality Energy Storage and Usage During the day, solar panels charge the battery, storing energy for nighttime use. At night, the LDR sensor detects darkness and automatically turns on the lights. Adaptive Brightness Control The PIR sensor keeps lights at 20% brightness when no one is present, ensuring energy efficiency while maintaining a sense of security. When motion is detected, brightness increases to 100%, providing maximum visibility for pedestrians and vehicles. Challenges and Solutions Optimizing Power Consumption: Low-power modes and adaptive brightness were implemented to reduce unnecessary energy usage. Efficient Battery Management: A reliable charging module was integrated to ensure sufficient power supply throughout the night. Sensor Accuracy: PIR and LDR sensors were calibrated for precise detection and smooth operation. Conclusion Developing Smart Street Lights was an exciting opportunity to combine renewable energy with automation for a sustainable solution.