This project report presents the design and implementation of an automatic street light control system using a light-dependent resistor (LDR) and a relay. The system aims to address the inefficiencies of traditional street lighting, which often leads to energy wastage and increased insecurity in developing countries. The design utilizes an LDR to sense the intensity of sunlight, automatically switching the street lights on or off based on the ambient light level. The report covers the background, aims, and objectives of the project, along with a literature review of relevant technologies such as LDRs, photoelectric sensors, microcontrollers (ATmega8), and relays. The methodology includes secondary source reviews, computer simulations, mathematical models, observations, and experiments to validate the system's functionality. The results and discussions section analyzes the performance of the designed system, and the conclusion highlights the implications of the project and potential future studies. The system offers benefits such as reduced energy consumption, lower electricity bills, and automated operation, making it a cost-effective and energy-efficient solution for street lighting.
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