Fig. 3 shows that CT sensors will firstly connected to the Voltage divider in order to normalize the AC signal that
is coming from the CT sensors, as the Arduino can only read DC signal. It will create a reference voltage of about
2.5 V. After connected to the Voltage divider, the CT sensors will output its signal to the Arduino analog input pin
0-3. There are also reset modules on this Voltage divider board, the purpose of the reset module is to prevent
Arduino system to reset every time a serial connection is opened. The reset module contains a capacitor that is
connected to Reset and GND pin of the Arduino.