A. Flow Chart For home Communicable Unit
The energy meter is incorporated with 8051 microcontroller
which processes the input currents and voltages into numerical
value and sends it to the gateway using RF link. The flow
chart for the home communication unit is defined as the meter
starts, 8051 unit initializes the serial communication for data
transmission and LCD initializes simultaneously. 8051 checks
for the last stored value in EEPROM and then display the
serial number and meter reading on the LCD. Then it will
check whether the data is received by the RF module or not. If
data received then the value is sent to the gateway in the form
of frames using RF link and the same value is stored in
EEPROM for future use.