Abstract :
Electricity growth continues to increase from time to time in line with increasing
economic activity and public welfare. The increase in the growth of electrical
energy will certainly deplete the existing non-renewable energy source if its
utilization is ineffective and inefficient. In the utilization of electrical energy, it is
sometimes unknown how much energy has been used so that it tends to waste
electricity. Therefore, to determine the amount of electrical energy that is being
used, it is necessary to measure the use of electrical energy. The purpose of this
study is to maximize the voltage that enters the load, namely the street light. By
using the transformer as a voltage converter both the rising and falling voltage,
the transformer is controlled using arduino uno assisted by the motor driver to
govern its motion, as well as using rtc to adjust the time on the transformer so
that the transformer can move according to the specified time.