16x2 lcd with alphanumeric keypad code

Hardware requirements



4x4 keypad

16x2 lcd

One 80s51 0r 80c51

Oscillator to provide necessary clock frequency to micro controller.

A potentiometer for lcd contrast.



First of all never forget to include the #include<reg51.h> header file in every 8051 project because this is the file that contains all the necessary linking and debugging code in it.

-16x2 lcd with alphanumeric keypad code

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Hardware requirements



　　4x4 keypad

　　16x2 lcd

　　One 80s51 0r 80c51

　　Oscillator to provide necessary clock frequency to micro controller.

　　A potentiometer for lcd contrast.



First of all never forget to include the #include<reg51.h> header file in every 8051 project because this is the file that contains all the necessary linking and debugging code in it.