Sun Tracking Solar Panel Using Micro-controller and Arduino

The prototype of this  project consist of LDR (Light Dependent Resistor) also known as photo resistor. Servo motor, jumper wires and Microcontroller Arduino. The two LDR?s are placed at the two sides of solar panel and the servo motor is used to rotate the solar panel. The servo will

2025-06-28 16:36:11 - Adil Khan

Project Title

Sun Tracking Solar Panel Using Micro-controller and Arduino

Project Area of Specialization Internet of ThingsProject Summary

The prototype of this  project consist of LDR (Light Dependent Resistor) also known as photo resistor. Servo motor, jumper wires and Microcontroller Arduino. The two LDR’s are placed at the two sides of solar panel and the servo motor is used to rotate the solar panel. The servo will move the solar panel towards the LDR whose resistance will be low, mean towards the LDR on which light is falling, that way it will keep following the light. And if there is same amount of light falling on both the LDR, then servo will not rotate. The servo will try to move the solar panel in the position where both LDR’s will have the same resistance means where same amount of light will fall on both the resistors and if resistance of one of the LDR will change then it rotates towards lower resistance LDR. Firstly LDR sense the light and sends command to Arduino and Arduino sends instructions to the servo motor rotate the panels towards the sun. 

Project Objectives Project Implementation Method

Firstly sensor senses the direction of sun and send the commands to the Micro-controller Arudino and Arudino send the command to motor to rotate.

in programming we used MPPT alogorithim.

Senses all of two sensors.
• Drives stepper motor.
• Drives LCD.
• Controls the warning indicators e.g. buzzer, LED’s etc.

• Communicates (by parallel port) with the slave microcontroller. The central driving components of automatic control are only two sensors.

Benefits of the Project

• This automatic solar tracker is easy to implement since its construction is simple.
• With the implementation the proposed system the additional energy generated is around 25% to 30% with very less consumption by the system itself.
• The solar panel with the sun in order to extract maximum energy falling on it renewable energy is rapidly gaining importance as an energy resource as fossil fuel prices fluctuate

Technical Details of Final Deliverable

Technical details:

Final Deliverable of the Project HW/SW integrated systemCore Industry ITOther Industries Others Core Technology Internet of Things (IoT)Other Technologies Artificial Intelligence(AI), OthersSustainable Development Goals Industry, Innovation and InfrastructureRequired Resources
Item Name Type No. of Units Per Unit Cost (in Rs) Total (in Rs)
Total in (Rs) 45105
Solar Panel Equipment11100011000
Servo Motor Equipment160006000
Arduino Equipment110001000
Jumper Wires Equipment44001600
LDR Sensors Equipment240008000
Printing Reams,Printing Ink,Erasers, Pencils, Sharpeners,Stapler and Staples,Paper Clips,Box Files Miscellaneous 10100010000
LED Light Equipment5101505
Battery Equipment170007000

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