USING A MICROCONTROLLER TO CREATE AN AFFORDABLE SOLAR CHARGE CONTROLLE

Abstract

Using a Programmable Intelligent Controller (PIC) to regulate and coordinate the operations correctly, this article provides a Solar Charge Controller (SCC) that is both cost- effective and efficient. The paper lays out the intricate blueprints for building SCC with the use of a crystal oscillator, an optocoupler, ceramic resistors, LC filters, and a MOSFET. The PIC microcontroller's source code is developed in C to provide precise and efficient automated connection and disconnecting. Thus, when the battery is about to be overcharged, it may be detached from the solar cell; when it is about to be discharged, it can be reattach. When the current flows too high or too low, the loads may be separated. Overcurrent and undercurrent may also cause loads to be disconnected. To show the current flowing from the solar cells to the load via the microcontroller and the present state of the battery, the suggested charge controller has a Liquid Crystal Display (LCD). We propose this smart solar charge controller, and its construction and operation show that it works well and is more cost-effective.