Edit your program and simulation in order to display the value of the pressed key on a BCD $7-$segment. $($ Binary. coded decimal $7-$segment display takes the numbers from $0-9$ and displays them normally. Its internal work converts the entered decimal to binary by representing the number with four digits then views it as normal $7-$seg. At Proteus: bcd display. It has four pins $1-4$ from right to left connected to the pins of your port. $)$

Simulate a program that enable the user to enter his password by a keypad then press "check" button, if the password matches the stored one, the LED will shine.