1. Arduino Based Solar Street Light

2. Arduino Based Solar Street Light
Introduction
The project is designed for LED based street lights with auto intensity control by an Arduino board using solar power from photovoltaic cells. As awareness for solar energy is increasing, more and more individuals and institutions are opting for solar energy. Photovoltaic panels are used for charging batteries by converting the sunlight into electricity. A charge controller circuit is used to control the charging.

3. Arduino Based Solar Street Light
Block Diagram

4. Arduino Based Solar Street Light
Hardware Requirements
Arduino board
White LEDs
MOSFET
Battery
ATmega AVR series Microcontroller
Regulator
Solar Panel.

5. Arduino Based Solar Street Light
Software Requirements
Arduino Software
Language: Arduino Programming Language

6. Arduino Based Solar Street Light
Functional block diagram with explanation of each Block

7. Arduino Based Solar Street Light
Solar Panel:
A solar panel is a collection of solar cells. The solar panel converts the solar energy into electrical energy.
Output of the solar panel is its power which is measured in terms of Watts or Kilo watts. Solar power uses multiple reflectors to collect more sun’s thermal energy.
Thermal energy collected through the day to perform different operations.
Performance of the solar panel depends on a number of factors like climate, conditions of the sky, orientation of the panel, intensity and duration of sunlight and its wiring connections.

8. Arduino Based Solar Street Light
Charge controller circuit:
If the battery voltage is below 12V, then the current from LM317 IC flows to the battery.
The current flow to the battery stops when the battery voltage rises to 13.5V. Hence charge controller circuit will prevent the battery to flow high current through it.

9. Interesting, right?
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