Keypad interfacing with microcontroller(calculator keypad)

Hi, welcome to MINA TECHNONOLY. In this tutorial we will learn how to interface calculator keypad with microcontroller. The calculator keypad is 4x4 matrix keypad and it contain 16 push button switch and 8 terminal. Thanks for visit this channel. This channel is education related. For more details : https://www.microcontrollerprogramming.com/pic-microcontroller/4x4-keypad-interfacing-with-pic16f877a-microcontroller-and-mikroc-compiler