Sun Tracking Solar Panel Using Arduino Circuit Diagram

The solar tracker comprises comparator ic lm339 h bridge motor driver ic l293d ic2 and a few discrete components.

Sun tracking solar panel using arduino circuit diagram.

This solar tracker control system is designed to take light measurements from the east and west left and right side of the solar panel and determine which way to move the panel to point it directly at. We have designed a single axis solar tracking system. The produced electrical energy can be increased if we move the solar panel as the movement of the sun. The circuit design of solar tracker is simple but setting up the system must be done carefully.

When the stick on top is righted to the sun or the brightest point the four ldrs get the same amount of light on them. In this article we are going to make a sun tracking solar panel using arduino in which we will use two ldrs light dependent resistor to sense the light and a servo motor to automatically rotate the solar panel in the direction of the sun light advantage of this project is that solar panel will always follow the sun light will always face towards the sun to get charge all the time and can. The dual axis solar photovoltaic panel takes astronomical data as reference and the tracking system has the capability to always point the solar array toward the sun and can be installed in various regions with minor. 1 shows the circuit of the solar tracking system.

These provide the signal to motor driver ic2 to move the solar panel in the sun s direction. Light dependent resistors ldr1 through ldr4 are used as sensors to detect the panel s position relative to the sun. Arduino solar tracker circuit diagram in the circuit two ldr light dependent resistors sensors are used to sense the light. Aim of the project.

Generally solar panels are stationary devices which is fixed at a position. The pwm inputs of two servos are given from digital pins 9 and 10 of arduino. It consists of only this components ldr module l293d motor driver module dc motor 30 rpm solar panel. Here is a simple low cost solar tracker circuit which automatically moves the solar panel in the direction of sun.

Four ldrs and four 100kω resistors are connected in a voltage divider fashion and the output is given to 4 analog input pins of arduino. The sensors are connected in series with 10 k ohm resistors. It searches for the brightest light source like the sun. A single axis solar tracker improves solar output by around 25 and a dual axis tracker by around 40 according to this article on altestore.

The aim of this solar tracker project is to keep the solar photovoltaic panel perpendicular to the sun throughout the year in order to make it more efficient.