it is a simple circuit just for teaching the basics of 7 segment display :) , i am still a beginner , enjoy :)
Enter the code from up to down, "Closed Switch" = 1 , "Opened Switch" = 0
1. 1000
2. 0100
3. 1100
4. 0010
5. 1010
6. 0110
7. 1110
8. 0001
9. 1001
A. 0101
b. 1101
c. 0011
d. 1011
e. 0111
f. 1111
