Dual-axis Solar Tracker Using Light Dependent Resistor & Microcontroller

Abstract

The above figure is a circuit diagram of 2x Solar Panel Tracker which build of a voltmeter array, a microprocessor, solar panel, axis sensor, display, survey motor and battery. When sun lights heat the solar panel, then it started the current flow into the solar panel, which used to charge the batteries. Since, here we are using 2x solar panel, we can heat it all day long by the sun rays and charge the batteries as well. When the charge is fulfilled then the microprocessor signals to the charge controller, and then the battery representation become off. The panel along with the sun we have used an axis sensor, and for this we have used four LDR. To rotate in X and Y axis we have used LDR1, LDR2, LDR3; and LDR4 calculate the power of light and gives the micro power; the micro power survey motor gives the PWM signal and that rotate the panel board in the right direction. LCD display shows battery charging, low voltage, full representation as micro power unit.