Abstract :
Electricity growth continues to increase from time to time in line with the
increase in economic activities and community welfare. The increase in the
growth of electrical energy will certainly deplete the existing non-renewable
energy sources, if the utilization is not effective and efficient. In the use of
electrical energy, sometimes it is not known how much energy has been used so
that energy tends to be wasted. 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 research is to simplify the measurement of voltage and
current. The method used in this study is reading current and voltage values and
displaying on liquid crystal displays (LCD). Arduino uno is the main controller
for reading voltage sensor values and current sensors. Sensors used are
ZMPT101b Voltage Sensor and SCT013-000 Current sensor. Measurement
results with a prototype with an average error for voltage measurement is 1.5%,
current measurement is 3.45%, and for accuracy is 95.05%.