Desenvolvimento de um dispositivo microcontrolado para automação e otimização de uma residência com geração fotovoltaica OFF GRID

Abstract

In recent years, the photovoltaic systems sector has grown massively, due to several factors, but the main one has been the reduction in technology costs. Small systems can be sold to people in the countryside who are looking for an alternative to enjoy electricity even far from the power grid. Most of these people do not have the necessary technical knowledge to manage the functioning of these systems, taking into account their restrictions. Based on this problem, and on existing technologies, a circuit based on the Atmega 328P microcontroller was developed to manage the of an off grid photovoltaic system operation, the device is able to analyze the battery voltage and the time to define which equipment should work. The system optimizes the operation of the equipment, avoiding waste and protecting the batteries from over-discharging, in addition to giving greater freedom to users who are no longer concerned with this control, and can be away from home for long periods of time.