An Automatic Street Light With Motion Activation

As a focus on power-saving and intelligent city, the demand of intelligent lighting is becoming more and more. The design For the SMART street light — A cost effective, efficient and Robust design This paper only deals with the replacement of Power wasting street lights by completely automated system based on Motion Detection, which needs to be turned ON only in Dusk. Built with parts including an LDR, HC-SR04 ultrasonic ranging sensor, and a set of LED modules controlled by an Arduino microcontroller, the system adjusts lighting in the room according to current environmental states. The authors highlight the use in smart city-rich contexts, thus aiding in the sustainable urban development.