Methodology

            

a)      Power Supply

-          Transformer to step down voltage from 240V to 9V.

-          Bridge rectifier to convert from AC to DC voltage.

-          IC Regulated (LM7805) to regulate the voltage 5V to supply to Microcontroller.

b)      Microcontroller PIC16f877a

-          Using MPLAB program to write a C language to program to microcontroller.

-          Using a Proteus program to design a circuit.

c)      EEPROM

-          To store the data

d)     Buzzer

-          To produce a sound on the certain operation.

e)      LCD

-          To display a digital energy meter and the electric bill (RM) in digital.

f)       Voltage and Current sensor

-          To sense the energy usage.

g)      Miniature Circuit Breaker

-          To trip the connection