Abstract: This paper presents an improved solar-powered street light. It consists of a microcontroller, DC-DC power converter, a Light-emitting diode (LED), sensors, and other components coupled together. So, this system charges during the day when the Light-dependent resistor (LDR) attached to the solar panels detects sunlight and begins charging the battery. This voltage is, of course, high and is stepped down using a DC-DC power buck converter, which reduces the voltage to about 15 volts. The bucked-down voltage is used to charge the battery until the battery is full. The light switches ON at night when the LDR can no longer detect sunlight. When this happens, signals are sent to the microcontroller, which now sends other signals through a transistor switching on the LED. When switched ON, the lights at dim and remain so unless an object or person approaches, which it then senses by the motion sensor, and the light intensity is then increased till the passing person or object is out of range. One distinguishing characteristic of this research work is that it captures all the images of the moving objects that pass across the area coverage area and store them for security and analytical purposes, unlike the conventional ones.

Keywords: Voltage, Solar panels, LED, SensorS, Lighting, Solar

Pages: 125-133