80C51 microprocessor Keypad integration and Multiplexing 6 - 7 Segment Displays.

In this video we will program an AT89C51 using assembly language to scan a 4x4 matrix key pad and display which keys are pressed on two multiplexed 7 segment displays as well as add 4 more 7 segment displays to simulate incrementing address spaces up to FFFF in Hex.
The program that I am using to write code with is called Keil µVision 5. You can find and download it here: https://www.keil.com/download/product...​

As I an not the one who did the actual keypad programming, I will provide you with the link to the individual who actually did do that part of the programming, if you need further instruction on that part of the programming.

Study Microcontrollers
https://youtu.be/f2wra_y5EQw