This solar tracker system is used for tracking the sun only in one plane the horizontal one.
Sun tracking solar panel circuit.
1 shows the circuit of the solar tracking system.
For solar panels control is best to use small motors with a suitable voltage and a maximum working current of 300 ma.
If you want to track the solar light in the vertical plane you need to build a separate sun tracker circuit.
Light dependent resistors ldr1 through ldr4 are used as sensors to detect the panel s position relative to the sun.
Light dependent resistors produce low resistance when light falls on them.
The sun tracking solar panel consists of two ldrs solar panel and a servo motor and atmega328 micro controller.
The solar tracker comprises comparator ic lm339 h bridge motor driver ic l293d ic2 and a few discrete components.
The movement of the sun is detected using two ldrs which are arranged on the solar panel in such a way that the intensity of light falling on it varies as the direction of sun changes.
Solar tracking system circuit fig.