.Flow Chart.

Here is the flow chart of PIC and Visual Basic that I used during the implementation of my project.

Visual Basic is used to enter data to the system and send to PIC Transmitter module.

Visual Basic of Transmitter

The data will be entered into PIC Microcontroller to control the PIC hardware.

PIC Microcontroller of Transmitter module

Then, the data will be send to RF Transmitter and the transmitter will send to the RF Receiver. 

RF Receiver will send the data received from RF Transmitter to the PIC Microcontroller. 

PIC Microcontroller of Receiver module

PIC will send the data received from RF Receiver to Visual Basic.

Visual Basic of Receiver

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.Block Diagrams.

I'm sorry I forgot to show the block diagram for my project, Wireless Security in Data Communication. For this project, I have two block diagrams, which is for transmitter and receiver. Both have the same function and differ only in transmit and receive. The block diagrams as shown below :-

Transmitter Module

Input: Adaptor (power supply), voltage regulator and computer (Visual Basic)

Output: Red LED, LCD, buzzer and RF transmitter.

Medium: Radio Frequency to send data from RF transmitter to RF receiver.

Receiver Module

Input: Adaptor, voltage regulator and RF Receiver

Output: Red LED, LCD, buzzer and computer (Visual Basic)

                                                                              

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