80C51 microprocessor Keypad - Multiplexing two 7 Segment Displays - New Keypad Scanning Code

I found out that the Old code that I was using, had a problem when multiplexing. The Microprocessor would halt after 60 keys were pressed.
So, in this video I will introduce you to a completely new method for scanning the keypad. However Adding displays and Multiplexing is pretty much the same.

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.
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​