| dc.description.abstract | The fan is one of the electronic devices needed by humans. Fans generally have functions for air conditioning and air fresheners. The fan certainly needs current to be turned on, but when there is a power outage or a disturbance in the electricity, of course the fan will not be able to be used, especially during a hot day. For this reason, in this final project the author uses solar power as a power source. The solar panel captures the energy of sunlight and converts it into electricity and then the control charge will regulate it to charge the battery. There are several types of controllers used, but in general they can be divided into 2, namely using DC volts entirely (DC coupling) and converting DC voltage to AC (inverter). Then, current is supplied to the Atmega328 which functions as the control center of the entire circuit so that the fan can turn on automatically. Then the relay flows and controls the current to the fan and displays the output output in the form of the current room temperature on the LCD and displays the on/off speed of the fan. Where the temperature is measured by the DS18B20 sensor. When the air around the room is lower, the fan will spin more slowly, while the fan will move faster when the surrounding temperature gets higher (hot). Thus this automatic fan is very helpful for humans in everyday life. | en_US |
