Solar Tracking System Using Arduino

Hi Friends! During this project we’ll refer Solar Tracking System Using Arduino. Allow us to design a solar tracking system using one servo motors, a lightweight sensing element consisting of 4 LDRs and Arduino.

Solar Tracking System Using Arduino

[otw_is sidebar=otw-sidebar-1]  This device keeps a flat panel holding a photovoltaic cell incessantly following the sun because it moves across the sky. The Arduino uses a pair of lightweight dependent resistors (LDRs) that are separated by a fin to match the sunshine levels on either aspect so rotate the servo hooked up to the panel towards the a lot of lighted LDR till the 2 detectors are equal. This is often a pleasant Arduino project which mixes sensors with servos, with logic which will be tuned, and features an employment regarding clean energy.

Research Connection


Scientists and engineers are attempting to extend the potency of star cells and reduce the expense. Trackers were thought of sensible once star cells were terribly high-priced. Currently costs have return down most that the stress is on giant areas of fastened panels and on covering all out there building surfaces with panels. Concentrating star thermal collectors use many mirrors that rotate to mirror lightweight to central power tower. Star thermal trackers are still relevant as a result of they need the potential to store energy with melted salts for many hours once sun down. This helps deliver star generated power within the evening once demand peaks.

              Solar Tracking System Using Arduino

Components of Solar Tracking System 

  • Arduino
  • 2 lightweight dependent resistors (LDR)
  • 10K resistors
  • Servo motor

Circuit Diagram of Solar Tracking System 

The circuit design of solar tracking is straightforward however putting in the system should be done fastidiously. Two LDRs are connected in a very resistance fashion and also the output is given to 4 Analog input pins of Arduino. The PWM inputs of servos are given from digital pins nine and ten of Arduino.

Working of Solar Tracking System

LDRs are used because the main lightweight sensors. Servo motors are fastened to the structure that holds the solar battery. The program for Arduino is downloaded to the microcontroller. LDRs sense the number of sunlight falling on them. Four LDRs are divided into prime, bottom, left and right. For east west following, the analog values from 2 prime LDRs and 2 bottom LDRs are compared and if the highest set of LDRs receives a lot of lightweight, the vertical servo can move in this direction. If rock bottom LDRs receives a lot of lightweight, the servo moves in this direction. For deflection of the solar battery, the analog values of 2 left LDRs and 2 right LDRs are balances. If the left set of LDRs receives a lot of dependent resistors than the proper set, the parallel servo can move in this direction. If the proper set of LDRs receives a lot of lightweight, the servo moves in this direction.





The advantage of this project is that the solar panels can perpetually follow the daylight can perpetually face the sun to induce charge all the time and might give the provision the most power. The model is extremely simple to create.


I hope you consider this topic very helpful. See you in next lesson. Take care guy.