The Block Diagram for transmitter module

Explanation of Block Diagram

                          Figure is show about block diagram transmitter module. The voltage to supply circuit comes from adapter. The voltage using is 12vdc. The voltage will through to voltage regulator. An output from voltage regulator is 5vdc and supplies the voltage to PIC. In other word is converting from 12vdc to 5vdc. After PIC have supply, and accept the input from RFID reader to generate the programming. The output from PIC is to transferring to RF transmitter 315 MHz and sends the data to receiver. The output will display on LED. When system is operating, RFID reader detects RFID card. If card detected, transmitter will send RFID data to receiver and blue LED will blink.