Two Digit Token Counter as UART Application

As'salam o alaikm

Today here is new application of PIC controller that is "Token Counter" basically the application of UART (Universal Asynchronous Receiver Transmitter).

Description:

Here is the block diagram of mentioned project.

1. Tx End

In this end of microcontroller have a keypad use to enter preset value of visitor. Press * to enter in keypad then press two digit then press # to exit from keypad. Then Tx end display that number and send to Rx end.

If you want to increment then push Up push button, for decrements press Down and for start 00 then press RST (Reset).

2. Rx End 

UART receive the number and display on 7 segment display and blink twice with beep (buzzer).

Circuit diagram of token counter

Youtube link:

For Code & Circuit