Abstract

• Solar photovoltaic power measurement systems are important to investigate. Studying the environmental condition of a solar panel will help to improve efficient power collection with a faster rate. Solar panel converts photonic energy into electrical energy. But the conversion speed and properties depend on the type and size of solar panels. Moreover, the current and voltage of the solar panel is also related with luminous, and temperature exerted on it. The circuit is designed to investigate the voltage, current, luminous and temperature of a solar panel. The results will be displayed on an alphanumeric liquid crystal display. The whole system design include an 8-bit PIC microcontroller, an alphanumeric liquid crystal display, a crystal oscillator, a current detector circuit, a voltage divider circuit, a temperature sensor, light intensity sensor circuit and a regulated power supply. A program source code is created to operate the whole circuit. It is converted to machine code and loaded into the memory of PIC microcontroller. The whole circuit is constructed on a printed circuit board. Data collections were made for the circuit to proof the efficiency of various solar panels.